Brake System

GENERAL ABS (ANTI-LOCK BRAKE SYSTEM)

ANTI-LOCK BRAKING SYSTEM CONTROL
MODULE
BRAKE SYSTEM FRONT WHEEL SPEED SENSOR
BRAKE BOOSTER REAR WHEEL SPEED SENSOR
BRAKE LINE
BRAKE PEDAL
FRONT DISC BRAKE EBD (ELECTRONIC BRAKE-FORCE DIS-
MASTER CYLINDER TRIBUTION)
PROPORTIONING VALVE
REAR DISC BRAKE ESP(ELECTRONIC STABILITY PROGRAM)
SYSTEM
PARKING BRAKE SYSTEM YAW-RATE SENSOR & G-SENSOR
PARKING BRAKE ESP SWITCH
PARKING BRAKE SWITCH STEERING WHEEL ANGLE SPEED SENSOR
BR -2 BRAKE SYSTEM
GENERAL BR -3

GENERAL
SPECIFICATIONS E4ED36DC

Item Specification
Master cylinder
· Type Tandem type
· I.D. mm(in) 25.4/(1.0)
· Piston stroke mm(in) 29 ~ 31(1.14 ~ 1.22)
· Fluid level warning sensor Provided
Proprotioning valve
· Cut-in pressure 2.94 MPa (30 kg/㎠, 426.7 psi)
· Decompression ratio 0.32 : 1
Brake booster
· Type Vacuum
· Boosting ratio 8 : 1
Front brake(Disc)
· Type Floating type with ventilated disc
· Disc O.D. 303 mm (11.8 in)
· Disc thickness 28 mm (1.10 in)
· Pad thickness 11 mm (0.43 in)
· Cylinder type Single piston
· Cylinder I.D. Ø60 mm (Ø2.36 in)
Rear brake(Disc)
· Type Floating type with solid disc
· Disc O.D. 284 mm (10.31 in)
· Disc thickness 10 mm (0.39 in)
· Pad thickness 15 mm (0.59 in)
· Cylinder type Single piston
· Cylinder I.D Ø34 mm (Ø1.34 in)
Parking brake
· Type Mechanical brake acting on rear wheels
· Actuation Lever
· Drum Ø19 mm (Ø0.75 in)

O.D=Outer Diameter
I.D=Inner Diameter

NOTE
ABS : Anti-lock Brake System
ESP : Electronic Stability Program
BR -4 BRAKE SYSTEM

SPECIFICATION (ABS) E4D532FB

Part Item Standard value Remark

4 channel 4 sensor
System
(Solenoid)

HECU(Hydraulic and Motor, valve relay

Type ·ABS system:ABS
Electronic Control intergrated type
＆ EBD control
Unit) Operating voltage 10 V ~ 16 V(DC)
-40 ~ 120 C(-40
Operating temperature
~ 248 F)
·ABS W/L:ABS failure
Operating voltage 12 V ·Brake W/L:Parking,
Warning lamp brake oil, EBD failure
Current consumption 80 mA
Supply voltage DC 4.5 ~ 2.0 V
Output current low 5.9 ~ 8.4 mA Typ.7 mA
Output current High 11.8 ~ 16.8 mA Typ.14 mA
Acitve wheel speed Frequency range 1 ~ 2500 HZ
sensor(ABS)
0.4 ~ 1.0 mm
Air gap
(0.0157 ~ 0.04 in.)
Tone wheel 48 teeth
Output duty 30~70 %
GENERAL BR -5

SPECIFICATION(ESP)

Part Item Standard Value Remark

4 channel 4
System
sensor(Solenoid)

HECU(Hydraulic and Motor, valve relay

Type ·Total control(ABS,
Electronic Control intergrated type
EBD, TCS, ESP)
Unit) Operating voltage 8V ~ 16V(DC)
-40 ~ 120 C(-40
Operating temperature
~ 248 F)
Operating voltage 12 V ·ESP Operating Lamp
Warning lamp
Current consumption 80 mA ·ESP Warning Lamp

Supply voltage DC4.5 ~ 20V

Output current low 5.9~8.4 mA
Output current high 11.8 ~ 16.8 mA
Active wheel speed
sensor Tone wheel 48 teeth
Frequency range 1~2500 HZ
0.4 ~ 1.0 mm
Airgap
(0.02~0.04 in)
Operating Voltage 8V ~ 16 V
Steering Wheel Angle
Current Consumption Max 150 mA
Sensor
Operating Angular velocity Max ±2000 /sec
Operating Voltage 8 V ~ 16 V
Current Consumption Max. 120 mA

Yaw-rate ＆ Lateral Output Voltage 0.35V ~ 4.65 V

G sensor Yaw Sensor Operating Range ±100 /s
G Sensor Operating Range ±1.8 G
Reference voltage output 2.464 ~ 2.536 V Typ. 2.5 V
BR -6 BRAKE SYSTEM

SERVICE STANDARD E9AAB886

Items Standard value

Brake pedal height 184.5 mm(7.264 in)
Brake pedal full stroke 128 mm (5.04 in)
Adjust Brake pedal full stroke 76.2 ± 2 mm (3 ± 0.078 in)
Brake pedal free play 3 ~ 8 mm(0.11 ~ 0.31 in)
Stop lamp switch outer case to pedal stopper clearance 0.5 ~ 1.0 mm (0.02 ~ 0.04 in)
Booster push rod to master cylinder piston clearance 0 (at 500 mmHg)
Parking brake lever stroke when lever assembly is pulled
88 ~ 98 mm (3.46 ~ 3.86 in)
with 196N (20kgf, 44lb force)
Front disc brake pad thickness 11 mm (0.43 in)
Front disc thickness 28 mm (1.1 in)
Rear disc brake pad thickness 15 mm (0.59 in)
Rear disc brake disc thickness 10 mm (0.394 in)

TIGHTENING TORQUE

Items Nm kgf.m lb-ft

Master cylinder to booster mounting nut 8 ~ 12 0.8 ~ 1.2 5.89 ~ 8.68
Brake booster mounting nut 13 ~ 16 1.3 ~ 1.6 9.4 ~ 11.6
Bleeder screw 7 ~ 13 0.7 ~ 1.3 5.06 ~ 9.4
Brake tube nut, brake hose 14 ~ 17 1.4 ~ 1.7 10.1 ~ 12.3
Caliper assembly to knuckle 80 ~ 100 8 ~ 10 57.9 ~ 72.3
Brake hose to front caliper 25 ~ 30 2.5 ~ 3.0 18.1 ~ 21.7
Caliper guide rod bolt 22 ~ 32 2.2 ~ 3.2 15.9 ~ 23.1
Stop lamp switch mounting nut 8 ~ 10 0.8 ~ 1.0 5.89 ~ 7.23
Brake pedal assembly bracket mounting nut 25 ~ 30 2.5 ~ 3.0 18.1 ~ 21.7
Brake pedal mounting nut 13 ~ 16 1.3 ~ 1.6 9.4 ~ 11.6
Active wheel speed sensor mounting
8 ~ 9 0.8 ~ 0.9 5.89 ~ 6.51
bolt on the brake plate
HECU mounting nut 6 ~ 10 0.6 ~ 1 4.34 ~ 7.23
HECU mounting bracket bolt 17 ~ 26 1.7 ~ 2.6 12.3 ~ 18.8
HECU port 12.2 ~ 16.3 1.22 ~ 1.63 8.82 ~ 11.79

Yaw rate ＆ lateral acceleration sensor bolt 5 ~ 8 0.5 ~ 0.8 3.62 ~ 5.89
GENERAL BR -7

SPECIAL TOOL E2AB95FA

Tool(Number and Name) Illustration Use

09581-11000 Spreading the front disc brake piston
Piston expander

EJDA043A

TROUBLESHOOTING EF908339

PROBLEM SYMPTOMS TABLE

Use the table below to help you find the cause of the prob-
lem. The numbers indicate the priority of the like cause of
the problem. Check each part in order. If necessary, re-
place these parts

Symptom Suspect Area Reference

Lower pedal or 1. Brake system (Fluid leaks) repair
spongy pedal 2. Brake system (Air in) air·bleed
3. Piston seals (Worn or damaged) replace
4. Rear brake shoe clearance(Out of adjustment) adjust
5. Master cylinder (Faulty) replace
Brake drag 1. Brake pedal freeplay (Minimum) adjust
2. Parking brake lever travel (Out of adjustment) adjust
3. Parking brake wire (Sticking) repair
4. Rear brake shoe clearance(Out of adjustment) adjust
5. Pad or lining (Cracked or distorted) replace
6. Piston (Stuck) replace
7. Piston (Frozen) replace
8. Anchor or Return spring (Faulty) replace
9. Booster system (Vacuum leaks) repair
10. Master cylinder (Faulty) replace
Brake pull 1. Piston (Sticking) replace
2. Pad or lining (Oily) replace
3. Piston (Frozen) replace
4. Disc (Scored) replace
5. Pad or lining (Cracked or distorted) replace
Hard pedal but brake 1. Brake system (Fluid leaks) repair
inefficient 2. Brake system (Air in) air·bleed
3. Pad or lining (Worn) replace
4. Pad or lining (Cracked or distorted) replace
5. Rear brake shoe clearance(Out of adjustment) adjust
6. Pad or lining (Oily) adjust
7. Pad or lining (Glazed) replace
8. Disc (Scored) replace
9. Booster system (Vacuum leaks) repair
BR -8 BRAKE SYSTEM

Symptom Suspect Area Reference

Noise from brake 1. Pad or lining (Cracked or distorted) replace
2. Installation bolt (Loosen) adjust
3. Disc (Scored) replace
4. Sliding pin (Worn) replace
5. Pad or lining (Dirty) clean
6. Pad or lining (Glazed) replace
7. Anchor or Return spring (Faulty) replace
8. Brake pad shim (Damage) replace
9. Shoe hold-down spring (Damage) replace
Brake fades 1. master cylinder replace
1. brake booster replace
2. pedal free play adjust
Brake vibration, 3. master cylinder replace
pulsation 4. caliper replace
5. master cylinder cap seal replace
6. damaged brake lines replace
Brake chatter is usually caused by loose or worn components, or
glazed or burnt linings. Rotors with hard spots can also contribute
Brake Chatter to brake chatter. Additional causes of chatter are out-of-tolerance
rotors, brake lining not securely attached to the shoes, loose
wheel bearings and contaminated brake lining.
BRAKE SYSTEM BR -9

BRAKE SYSTEM
OPERATION AND LEAKAGE
CHECK EBA960B6
CHECK ALL OF THE FOLLOWING ITEMS:

Component Procedure
Brake Booster (A) Check brake operation by applying the brakes during a test drive. If the brakes
do not work properly, check the brake booster. Replace the brake booster as an
assembly if it does not work properly or if there are signs of leakage.
Piston cup and pressure cup • Check brake operation by applying the brakes. Look for damage or signs of
inspection (B) fluid leakage. Replace the master cylinder as an assembly if the pedal does
not work properly or if there is damage or signs of fluid leakage.
• Check for a difference in brake pedal stroke between quick and
slow brake applications. Replace the master cylinder if there
is a difference in pedal stroke.
Brake hoses (C) Look for damage or signs of fluid leakage. Replace the brake hose
with a new one if it is damaged or leaking.
Caliper piston seal and piston Check brake operation by applying the brakes.
boots (D) Look for damage or signs of fluid leakage. If the pedal does not work
properly, the brakes drag, or there is damage or signs of fluid leakage,
disassemble and inspect the brake caliper. Replace the boots and seals
with new ones whenever thebrake caliper is disassembled.

D D

A C
B

C
D

C
KJBF505O
BR -10 BRAKE SYSTEM

BRAKE BOOSTER OPERATING TEST 3. With the engine running, step on the brake pedal and
then stop the engine.
For simple checking of the brake booster operation, carry Hold the pedal depressed for 30 seconds. If the pedal
out the following tests height does not change, the booster is in good condi-
tion, if the pedal rises, the booster is defective.
1. Run the engine for one or two minutes, and then stop If the above three tests are okay, the booster perfor-
it. If the pedal depresses fully the first time but grad- mance can be determined as good.
ually becomes higher when depressed succeeding Even if one of the above three tests is not okay, check
times, the booster is operating properly, if the pedal the check valve, vacuum hose and booster for defect.
height remains unchanged, thebooster is defective.

Good No good
Good No good

3rd
2nd
1st

EJRF500C
EJRF500B

2. With the engine stopped, step on the brake pedal sev-

eral times.
Then step on the brake pedal and start the engine. If
the pedal moves downward slightly, the booster is in
good condition. If there is no change, the booster is
defective.

When engine is stopped When engine is started

EGGB700B
BRAKE SYSTEM BR -11

VACUUM HOSE (CHECK VALVE) BRAKE PEDAL BRAKE SWITCH ADJUSTMENT

INSPECTION PEDAL HEIGHT

1. Disconnect the brake booster vacuum hose (check

valve built in) (A) at the booster (B). 1. Disconnect the brake switch connector, loosen the
brake switch locknut (A), and brake off the brake
2. Start the engine and let it idle. There should be vac- switch (B) until it is no longer touching the brake
uum available. If no vacuum is available, the check pedal.
valve is not working properly. Replace the brake
booster vacuum hose and check valve and retest. 2. Lift up the carpet. At the insulator cutout, measure
the pedal height (C) from the middle of the left-side
[LHD]
center of the pedal pad (D).

A Standard pedal height( with carpet removed):

184.5mm(7.26 in.)

D
KJBF501A

[RHD]

ARJE500P
B

A 3. Loosen the pushrod locknut (A), and screw the

pushrod in or out with pliers until the standard pedal
height from the floor is reached. After adjustment,
tighten the locknut firmly. Do not adjust the pedal
height with the pushrod depressed.

Lower the pedal

EJRF503L

Raise
the pedal

A
15.68~21.56 Nm
(1.6~2.2 kgf m, 11.64~16 lb-ft)

EJRF700A
BR -12 BRAKE SYSTEM

BRAKE SWITCH CLEARANCE PEDAL FREE PLAY

Screw in the brake switch until its plunger is fully de- 1. With the engine off, inspect the pedal free play (A) on
pressed (threded end (A) touching the pad (B) on the the pedal pad (B) by pushing the pedal by hand.
pedal arm) then brake off the switch 3/4 turn to make 0.5
~ 1.0 mm(0.0197 ~ 0.0394 in.) of clearance between the Free play: 3 ~ 8 mm (0.12 ~ 0.31 in.)
brake switch connector. Make sure that the brake lights
go off when the pedal is released.

[LHD]
C

B
A

0.5 ~ 1.0 mm
KJBF500C

KJBF500B
2. If the pedal free play is out of specification, adjust the
[RHD] brake switch (C). If the pedal free play is insufficient,
it may result in brake drag.

0.5 ~ 1.0 mm

EJBF505Z
BRAKE SYSTEM BR -13

INSPECTION OF FRONT DISC BRAKE PAD INSPECTION OF REAR DISC BRAKE PAD

1. Check the brake pad thickness through the caliper 1. Check the rear disk brake pad thickness through the
body inspection hole. caliper body inspection hole.

Pad thickness Pad thickness

Standard value : 11.0 mm ( 0.43 in) Standard value : 15.0 mm (0.59 in.)
Service limit : 2 mm (0.0787 in) Service limit : 2.0 mm (0.0787 in.)

KJBF504A KJBF502A

CAUTION CAUTION
• If the pad lining thickness is out of specilfica- • If the pad thickness is out of specification, left
tion, left and right pads must be replaced as and right pads must be replaced as a com-
a complete set. plete set.
• When the thickness difference between the • When the thickness difference between the
left pad and right pad is large, check the slid- left pad and right pad is large, check the slid-
ing condition of the piston and the guide rod. ing condition of the piston and the guide rod.
BR -14 BRAKE SYSTEM

BRAKE BOOSTER

COMPONENTS ED4FAF09

[LHD]

4
1 2

13~16
(1.3~1.6, 9.4~11.6)

16~22
6
8 (1.6~2.2, 11.6~15.9)
7

8~12
(0.8~1.2, 5.89~8.68)

TORQUE : Nm (kgf.m, lb-ft)

1. Vacuum hose 5. Clevis pin

2. Check valve 6. Brake booster
3. Snap pin 7. Master cylinder
4. Seal 8. Washer

EJBF506A
BRAKE SYSTEM BR -15

[RHD]

12.74~15.68
(1.3~1.6, 9.45~11.63)

5
4

3
1

6
7 8

7.84~11.76(0.8~1.2, 5.82~8.72) 15.68~21.56

(1.6~2.2, 11.63~15.99)

TORQUE : Nm (kgf.m, lb-ft)

1. Vacuum hose 5. Clevis pin

2. Check valve 6. Brake booster
3. Snap pin 7. Master cylinder
4. Seal 8. Washer
EJRF502Z
BR -16 BRAKE SYSTEM

REMOVAL EBC912AC 3. Remove the snap pin (A) and clevis pin (B).

1. Remove the master cylinder (Refer to ’Master cylinder C

removal’ BR-32).
B
A
2. Disconnect the vacuum hose (A) from the brake
booster (B).

[LHD]

B
A

C
C
12.74~15.68 Nm
(1.3~1.6 kgf m,
9.45~11.63 lb-ft)
EJRF700C

4. Remove the four booster mounting nuts (C).

5. Remove the brake booster (A).

KJBF501T

[RHD]
A

EJRF503A EJKE305D
BRAKE SYSTEM BR -17

INSTALLATION E207F695 4. Install the master cylinder.

1. Adjust push rod length of the booster, and then install 5. Connect the vacuum hose to the brake booster.
the seal on the booster assembly.
6. After filling the brake reservoir with brake fluid, bleed
Standard length (A): 108± 0.5 mm ( 4.25 ± 0.019 in.) the system (Refer to ’Bleeding of brake system’,
BR-68).

7. Check for fluid leakage.

8. Check and adjust the brake pedal for proper opera-

tion.

KJBF500F

2. Insert the booster and tighten the nuts (C).

B
A

C
C
12.74~15.68 Nm
(1.3~1.6 kgf m,
9.45~11.63 lb-ft)
EJRF700D

3. Connect the booster push rod and brake pedal with a

pin (B) and install a snap clevis pin (A) to the clevis
pin (B).

CAUTION
Grease the pin before installing the snap pin.
Always use a new snap pin.
BR -18 BRAKE SYSTEM

BRAKE LINE

COMPONENT E0FAB0B3

Brake line to brake hose

14~17 (1.4~1.7, 10.1~12.3)

Brake line to brake hose

14~17 (1.4~1.7, 10.1~12.3)

Disc brake :
Brake hose to caliper 25~30 (2.5~3.0, 18.1~21.7)
Bleeder screw 7~13 (0.7~1.3, 5.06~9.40)

Master cylinder to brake line

13~17 (1.3~1.7, 9.4~12.3)
Proportioning valve to brake line
130~170 (13~17, 94.0~122.9)

TORQUE : Nm (kgf m, lb-ft)

EJBF500B
BRAKE SYSTEM BR -19

REMOVAL EBE10BC9 INSTALLATION E0CBDA65

1. Loosen the brake tube(A) nut holding the brake 1. Install a brake hose(A) on the caliper with tightening
hose(C) nut with a wrench(B). brake hose bolt(C) and washer(B).

A
A

B
B

KJRE050A
KJBF500I

2. Remove the brake hose clip(D) and remove the brake

hose(C) from the brake line(A) with a wrench. 2. Install the bracket and the brake hose mounting bolt.

B C

KJBF500H

KJBF521A
3. Remove the brake hose bracket mounting bolt from
the body.
3. Connect the brake hose(A) and the clip(B) to the
brake line.
4. Remove the brake hose connecting bolt(A) from the
caliper assembly.

KJBF520A

4. After installing the brake hose, bleed the brake sys-

KJBF518A tem.
BR -20 BRAKE SYSTEM

INSPECTION EC374D0C 4. Repeat the procedure for wheel in the sequence

shown below unit air bubbles no longer appear in the
• Check the brake tubes for cracks, crimps and corro- fluid.
sion.
• Check the brake hoses for cracks, damaged and oil 5. Refill the master cylinder reservoir to MAX(upper)
leakage. level line.
• Check the brake tube flare nuts for damage and oil
leakage.

BRAKE SYSTEM BLEEDING E0C44ECF

Front Right Rear Right

NOTE
• Do not reuse the drained fluid.
• Always use Genuine DOT3 or DOT 4 Brake Fluid.
Using a non-Genuine DOT or 4 brake fluid can
cause corrosion and decrease the life of the sys-
tem.
• Make sure no dirt of other foreign matter is al-
lowed to contaminate the brake fluid. Front Left Rear Left
• Do not spill brake fluid on the vehicle, it may dam-
age the paint; if brake fluid does contact the paint,
wash it off immediately with water.
• The reservoir on the master cylinder must be at
the MAX (upper) level mark at the start of bleed-
ing procedure and checked after bleeding each EJKE003B
brake caliper. Add fluid as required.
FRONT DISC BRAKE
1. Make sure the brake fluid in the reservoir is at the MAX
(upper) level line (A). 6.86~12.74 Nm (0.7~1.3 kgf m, 5.09~9.45 lb-ft)

MAX

MIN

EJBF500C

EJQE003A

2. Have someone slowly pump the brake pedal several

times, then apply pressure.

3. Lossen the right-rear brake bleed screw to allow air

to escape from the system. Then tighten the bleed
screw securely.
BRAKE SYSTEM BR -21

BRAKE PEDAL

COMPONENTS EF92A270

4
3

[A/T]

1. Member assembly bracket 4. Bushing

2. Return spring 5. Brake pedal
3. Stop lamp switch
EJBF500D
BR -22 BRAKE SYSTEM

COMPONENTS (ADJUSTABLE PEDAL)

5 4

1. Member assembly bracket 4. Stop lamp switch

2. Bushing 5. Shaft bolt
3. Return spring 6. Brake pedal

EJRF500N
BRAKE SYSTEM BR -23

REMOVAL EF8DBA4F 4. Remove the shift lock cable (A) in case of the ad-
justable brake pedal.
1. Remove the lower crash pad.(Refer to BD-"crash
pad")

2. Pull down steering column shaft after removing 4

bolts.

[LHD] A

KJBF505R

5. Remove the pin and snap pin.

A
6. Loosen the brake pedal member assembly mounting
nuts and then remove the brake pedal assembly.

KJBF503A

[RHD]

EJBF506B

3. Remove the stop lamp switch connector (A).

BR -24 BRAKE SYSTEM

INSTALLATION E261059C INSPECTION E90D4C56

1. Installation is the reverse of removal. 1. Check the bushing for wear.

CAUTION 2. Check the brake pedal for bending or twisting.

Coat the inner surface of the bushings with the 3. Check the brake pedal return spring for damage.
specified grease.
4. Check the stop lamp switch.
Specified grease : SAE J310
1) Connect a circuit tester to the connector of stop
lamp switch, and check whether or not there is
2. Before inserting the pin, apply the specified grease to
continuity when the plunger of the stop lamp
the joint pin.
switch is pushed in and when it is released.

2) The stop lamp switch is in good condition if there

is no continuity when plunger(A) is pushed.

no continuity (3 mm (0.12 in))

A
continuity (4 mm (0.16 in))

EJRF500O

EJQE008R

3. Install the snap pin.

4. Install the nuts with specified torque, when installing

the brake pedal.

TORQUE : Nm(kgf·m,lb-ft);
12.74~15.68(1.3~1.6, 9.45~11.63)

5. Adjust the brake pedal height and free play.

6. Install the stop lamp switch.

BRAKE SYSTEM BR -25

FRONT DISC BRAKE

COMPONENTS E7A1EE0C

22~32
(2.2~3.2, 15.9~23.1) 2
4

6
3
5

TORQUE: Nm (kgf m, lb-ft)

1. Brake caliper 4. Guide rod bolt
2. Brake disc 5. Brake pads
3. Pad retainers 6. Brake pad shims

EJBF500E
BR -26 BRAKE SYSTEM

22~32 (2.2~3.2, 15.9~23.1)

1
3
4 80~100
(8~10, 57.9~72.3)

5
7~13
(0.7~1.3, 5.06~9.40) 6

10

9
8
11

12
7

13

14

TORQUE : Nm (kgf m, lb-ft)

1. Guide rod bolt 6. Washer 11. Piston boot

2. Bleeder screw 7. Caliper bracket 12. Inner shim
3. Guide rod 8. Caliper body 13. Brake pad
4. Boot 9. Piston seal 14. Pad retainer
5. Caliper mounting bolt 10. Piston
EJBF500F
BRAKE SYSTEM BR -27

REMOVAL EACFB385 INSTALLATION E1EE2839

CAUTION 1. Install the pad retainers (A) on the caliper bracket.

Frequent inhalation of brake pad dust, regardless

of material composition, could be hazardous to
your health.
• Avoid breathing dust particles.
• Never use on air hose or brush to clean brake
assemblies.

1. Lossen the front wheel nuts slightly. Raise the front of

the vehicle, and make sure it is securely supported.
Remove the front wheels.
A
2. Remove the guide rod bolt(B), After raise the caliper
assembly(A), support it with a wire.

A KJBF500S

2. Install pad shims(A) and the brake pads(B) with the

wear indicator on the inside.

CAUTION
If you are reusing the pads, always reinstall the
brake pads in their original positions to prevent a
momentary loss of braking efficiency.

KJBF500N

3. Remove pad shim(A), pad retainer(B) and pad as-

sembly(C) in the caliper bracket.

B A
B
B
KJBF505G

A
C
C
KJBF500O
BR -28 BRAKE SYSTEM

3. Insert the piston in the cylinder using the special tool 10. After installation, check for leaks at hose and line
(09581-11000). joints or connections, and retighten if necessary.

09581-11000 INSPECTION E6FAC369

FRONT BRAKE DISC THICKNESS CHECK

1. Remove all rust and contramination from the surface,

and measure the disc thickness at 8 points, at least, of
same distance (5mm) front the brake disc outer circle.

Front brake disc thickness

Standard value : 28.0 mm(1.10 in)
Limit : 26.4 mm(1.04 in)

2. Thickness variation should not exceed 0.005mm

KJBF500U (0.0002 in) (circumference) and 0.01 mm (0.0004
in)(radius) at any directions.
4. Push in the piston(A) so that the caliper will fit over the
pads. Make sure that the piston boot is in position to 3. If wear exceeds the limit, replace the discs and pad
prevent damaging it when pivoting the caliper down. assembly left and right of the vehicle.

5. Being careful not to damage the pin boot, install the

guide rod bolt (B) with the specified torque.

B
2.2~3.2kgf.m

KJBF500P
KJBF500V

6. If caliper assembly was removed, install the brake

hose to the caliper.

7. Refill the master cylinder reservoir to the MAX line.

8. Bleed the brake system.(Refer to ’Bleeding of ABS

system’)

9. Depress the brake pedal several times to make sure

the brakes work, then test-drive.

NOTE
Engagement of the brake may require a greater pedal
stroke immediately after the brake pads have been
replaced as a set. Several applications of the brake
will restore the normal pedal stroke.
BRAKE SYSTEM BR -29

FRONT BRAKE PAD CHECK FRONT BRAKE DISC RUN OUT CHECK

1. Check the pad wear. Measure the pad thickness and 1. Place a dial gauge about 5mm (0.2 in.) from the outer
replace it, if it is less than the specified value. circumference of the brake disc, and measure the run
out of the disc.
Pad thickness
Standard value : 11 mm (0.43 in) Brake disc run out
Service limit : 2 mm (0.0787 in) Limit : 0.04 mm (0.0016 in.) or less (new one)

2. If the run out of the brake disc exceeds the limit spec-
ification, replace the disc, and then measure the run
out again.

3. If the run out does not exceed the limit specification,

install the brake disc after turning it 180 and then
check the run out of the brake disc again.

4. If the run out cannot be corrected by changing the

position of the brake disc, replace the brake disc.

EJRF702K
5 mm (0.02 in.)
2. Check that grease is applied, to sliding contact points
and the pad and backing metal for damage.

EJBF500G
BR -30 BRAKE SYSTEM

SEIZING OF FRONT BRAKE DISC

1. Remove the brake disc from hub using an M8

screw(A) if the brake disc has been seized with the
hub due to corrosion or overheating.

NOTE
Be careful not to use a hammer. The disc can be dam-
aged if you remove the disc from the hub by hammer-
ing.

KJBF500R
BRAKE SYSTEM BR -31

MASTER CYLINDER

COMPONENTS ECF0E831

[LHD]

4
8

1. Reservoir cap 6. Retainer

2. Brake fluid filter 7. Primary piston assembly
3. Reservoir 8. Secondary piston assembly
4. Grommet 9. Master cylinder body
5. Cylinder pin

EJBF506C
BR -32 BRAKE SYSTEM

[RHD]

4
8

[ABS]

TORQUE : Nm (Kgf m, lb-ft)

1. Reservoir cap 6. Retainer
2. Brake fluid filter 7. Primary piston assembly
3. Reservoir 8. Secondary piston assembly
4. Grommet 9. Master cylinder body
5. Cylinder pin
EJRF503D
BRAKE SYSTEM BR -33

REMOVAL E33E25CE 3. Disconnect the brake fluid level switch connector (A),
and remove the reservoir cap (B).
NOTE [LHD]
Do not spill brake fluid on the vehicle; it may damage
the paint; if brake fluid does contact the paint, wash it B
C
off immediately with water.

1. Remove air cleaner mounting bolts (B) from the air

cleaner mounting bracket and air cleaner body (A).
-LHD only

A
KJBF501U

[RHD]

C
KJBF507A A

2. Remove the air cleaner assembly(A) by removing the

air cleaner mounting bolt(B) from the bracket.
-LHD only

B A

EJRF503E

4. Remove the brake fluid from the master cylinder

reservoir (C) with a syringe.

5. Disconnect the brake lines (A) from the master cylin-

der. To prevent spills, cover the hose joints with rags
or shop towels.

KJBF506A
BR -34 BRAKE SYSTEM

6. Remove the master cylinder mounting nuts (B) and INSTALLATION EEF4E71E

washers.
1. Install the master cylinder on the brake booster with 2
[LHD] nuts.

2. Connect the two brake tubes and the brake fluid level
sensor connector.

[LHD]

A B C
13.72~16.66 Nm 7.84~11.76 Nm
(1.4~1.7 kgf m, (0.8~1.2 kgf m,
10.18~12.36 lb-ft) 5.82~8.72 lb-ft)

EJBF500I A
B
1.4 ~ 1.7 kgf.m
0.8 ~ 1.2 kgf.m
[RHD]
EJBF505S

[RHD]

B A
7.84~11.76 Nm 13.72~16.66 Nm
(0.8~1.2 kgf.m, (1.4~1.7 kgf.m,
10.18~12.36 lb-ft) B A
5.82~8.72 lb-ft) 1.4 ~ 1.7 kgf.m
0.8 ~ 1.2 kgf.m

EJBF506D EJBF506E

7. Remove the master cylinder(C) from the brake 3. Fill the brake reservoir with the brake fluid and bleed
booster. Be careful not to bend or damage the brake the brake system (Refer to ’Bleeding of brake system’,
lines when removing the master cylinder. BR-69).
BRAKE SYSTEM BR -35

DISASSEMBLY E941DD67 5. Remove the pin with the secondary piston pushed
completely using a screwdriver. Remove the sec-
1. Remove the reservoir cap and drain the brake fluid ondary piston assembly.
into a suitable container.
C
2. Remove the fluid level sensor.
B
3. Remove the reservoir from the master cylinder, after
remove mounting screw (A). A

A KJBF528A

NOTE
Do not disassemble the primary and secondary piston
assembly.

INSPECTION E1A849D8
KJBF526A

1. Check the master cylinder bore for rust or scratching.

4. Remove the retainer ring by using the snap ring pliers
then remove the primary piston assembly. 2. Check the master cylinder for wear or damage. If
necessary, clean or replace the cylinder.

CAUTION
• If the cylinder bore is damaged, replace the
master cylinder assembly.
• Wash the contaminated parts in alcohol.

EJRF703U
BR -36 BRAKE SYSTEM

REASSEMBLY EF33C3A6 5. Mount two grommets.

1. Apply genuine brake fluid to the rubber parts of the 6. Install the reservoir on the cylinder.
cylinder kit and grommets.

2. Carefully insert the springs and pistons in the proper

direction.

EJRF703V

3. Press the piston with a screwdriver(A) and install the

cylinder pin(B).

EJRF703W

4. Press the piston with a screwdriver and install the re-

tainer ring.

EJRF703X
BRAKE SYSTEM BR -37

PROPORTIONING VALVE 4. Reconnect the brake lines in their original positions

and bleed the brake system.

DESCRIPTION EE3522F9
NOTE
Do not disassemble the proportioning valve. The propor- This table shows characteristics of the proportioning
tioning valve makes the ideal distribution of fluid pressure valve as the pressure increases.
to the front and rear brakes to prevent the brakes from skid-
ding in the event of rear wheel lock up and to obtain higher Rear
Front
brake efficiency within the range of service brake applica- (Output of proportioning
(Output of master cylinder)
tion. valve)

A : 30 ㎏/㎠ A’ : 30 ㎏/㎠
INSPECTION EA45DD74 (2.94 MPa, 427 psi) (2.94 MPa, 427 psi)

1. Remove the front brake tube (B) and rear brake tube B’ : 43.5 ± 3.0 ㎏/㎠
B : 80 ㎏/㎠
(C) from the master cylinder (A). (4.26 ± 0.3 MPa,
(7.84 MPa, 1137 psi)
618 ± 43 psi)
2. Connect two pressure gauges (D); one to the output
valve of the front (B) and rear (C) brake.

D
Output pressure (kg/cm2)

B’
B
A’
C

A 2
0 A B Input pressure (kg/cm )

EJRF700O
LJJF500O

NOTE
Be sure to bleed the system after connecting the pres-
sure gauges.

3. With the brake applied, measure the front pressure

and the rear pressure. If the measured pressures are
within the specified range as illustrated, the propor-
tioning valve is good.
BR -38 BRAKE SYSTEM

REAR DISC BRAKE

COMPONENTS EFD1FEAF

7~13 (0.7~1.3, 5.06~9.40)

1
2
80~100 (8~10, 57.8~72.3)
3
4
5

6 9

7 10
8

11

22~32
(2.2~3.2, 15.9~23.1) 3
12
4

13

15

TORQUE : Nm (kgf m, lb-ft)

1. Bleeder screw 6. Piston seal 11. Guide rod bolt
2. Caliper body 7. Piston boot 12. Inner shim
3. Guide rod 8. Pad retainer 13. Brake Pad
4. Boot 9. Caliper mounting bolt 14. Outer shim
5. Piston 10. Washer 15. Caliper bracket
EJBF500J
BRAKE SYSTEM BR -39

REMOVAL EBA88C4B INSTALLATION E6894814

1. Raise the rear of the vehicle and make sure it is se- 1. Install the pad retainers(A) on the caliper bracket.
curely supported. Remove the rear wheel.
2. Check for foreign material between the pad shim (A)
2. Remove the guide rod bolt(B), After raising the caliper and the back of the pads (B).
assembly(A), support it with a wire.

B
A C
B
C
KJBF500Z KJBF501B

3. Remove pad shim(A), pad retainer(B) and pad as- 3. Contaminated brake discs or pads reduce stopping
sembly(C) in the caliper bracket. ability. Keep grease off the discs and pads.

4. Install the brake pads (B) and pad shims (A) correctly.
Install the pad with the wear indicator (C) on the in-
side.
If you are reusing the pads, always reinstall the brake
pads in their original position to prevent a momentary
loss of braking efficiency.

B
A C

C
KJBF501B
BR -40 BRAKE SYSTEM

5. Push in the piston (A) so that the caliper will fit over the INSPECTION EE1C6DC8

pads. Make sure that the piston boot is in position to

prevent damaging it when pivoting the caliper down. REAR BRAKE DISC THICKNESS CHECK

6. Pivot caliper down into position. Being careful not to 1. Remove all rust and contamination from the disc sur-
damage the pin boot, install the guide rod bolt (B) and face, and then measure the disc thickness at 8 points,
torque it to proper specification al least, of the same distance (5 mm(0.12 in)) from the
brake disk outer circle.
B
2.2 ~ 3.2 kgf.m
A Rear brake disc thickness
Standard value : 10.0 mm (0.39 in)
Limit : 8.0 mm (0.31 in)

2. Thickness variation should not exceed 0.01

mm(0.0004 in) (circumference) and 0.01 mm(0.0004
in) (radius) at any directions.

3. If wear exceeds the limit, replace the discs and pad

assembly for left and right of the vehicle.

5 mm

KJBF501F

NOTE
Insert the piston in the cylinder using the special
tool(09581-11000).

KJBF501C

KJBF510A

7. Depress the brake pedal several time to make sure

the brakes work, then test-drive.

NOTE
Engagement of the brake may require a greater pedal
stroke immediately after the brake pads have been
replaced as a set. Several applications of the brake
will restore the normal pedal stroke.

8. After installaion, check for leaks at hose and line joints

or connections, and retighten if necessary.
BRAKE SYSTEM BR -41

REAR BRAKE PAD CHECK REAR BRAKE DISC RUN OUT CHECK

1. Check the pad wear. Measure the pad thickness and 1. Place a dial gauge about 5 mm (0.2 in) from the outer
replace it, if it is less than the specified value. circumference of the brake disc, and measure the run
out of the disc.
Pad thickness
Standard value : Brake disc run out
15.0 mm ( 0.59 in) Limit : 0.05 mm (0.002 in) or less (new one)
Service limit : 2.0 mm (0.08 in)

5 mm

KJBF501D

KJRE503B
2. If the run out of the brake disc exceeds the limit spec-
2. Check that grease is applied, and the pad and backing ification, replace the disc, and then measure the run
metal for damage. out again.

3. If the run out does not exceed the limit specification,

install the brake disc after turning it 180 and then
check the run out of the brake disc again.

4. If the run out cannot be corrected by changing the

position of the brake disc, replace the brake disc.
BR -42 BRAKE SYSTEM

SEIZING OF REAR BRAKE DISC

1. Remove the brake disc from hub using an M8

screw(A) if the brake disc has been seized with the
hub due to corrosion or overheating.

NOTE
Be careful not to use a hammer. The disc can be dam-
aged if you remove the disc from the hub by hammer-
ing.

KJBF501E
PARKING BRAKE SYSTEM BR -43

PARKING BRAKE SYSTEM

PARKING BRAKE

COMPONENTS(1) E2D15413

5 1.96 ~ 2.94
(0.2 ~ 0.3, 1.45 ~ 2.17)

TORQUE : Nm (kgf.m, lb-ft)

1. Parking brake pedal assembly
2. Parking brake cable
3. Equalizer assembly
4. Adjusting nut
5. Parking brake switch assembly
EJBF500L
BR -44 BRAKE SYSTEM

COMPONENTS(2)

5
6

7
4

12 9

10
11

1. Parking brake cable 5. Operating lever 9. Adjuster

2. Adjusting nut 6. Strut 10. Cup washer
3. Equalizer assembly 7. Upper spring 11. Shoe hold down spring
4. Backing plate 8. Lower spring 12. Shoe hold down pin

EJBF500K
PARKING BRAKE SYSTEM BR -45

REMOVAL E0DB13ED 9. While fastening the spring, remove the shoe hold
down pin(A) and spring(B).
1. Remove the lower panel, after loosening the parking
lever (Refer to BD Gr. ’Crash pad’)

2. Remove the parking brake mounting bolt(A) and the

A
wire(B).

B
KJBF538A

10. Remove the adjuster assembly(A) and the lower re-

turn spring(B).

KJBF501I

C
3. Remove the floor console (Refer to BD Gr. ’Console’).

4. Remove the parking brake wire by removing the ad-

justing nut(A).

A B
A
KJBF501K

11. Remove the strut assembly(C).

12. Remove the retaining ring(B) from the parking brake

wire(A) which is in the rear side of the backing plate.

KJBF501J

5. Raise the front of the vehicle, and make sure it is

securely supported.
A
6. Remove the rear wheel and tire from the rear hub.
B
7. Remove the caliper assembly from the carrier and
suspend it with wire. C

8. Remove the brake disk and the rear axle hub (Refer
to DS Gr. ’Rear axle’)

KJBF501L
BR -46 BRAKE SYSTEM

13. Remove the parking brake wire connecting hook(C) 4. While pressing the spring, install the brake shoe hold
from the brake shoe. down pin(A) and spring(B).

INSTALLATION ED088A72
B

1. Install the brake shoe(A) to the backing plate(B).

: Grease
EJBF505R

A
5. Grease where it is necessary.

6. Install the rear axle hub(A) and the brake disk(Refer

KJBF501M to DS Gr. ’Rear axle’).
2. Connect the parking brake wire to the brake shoe.

3. After installing the strut assembly(A), install the ad-

juster assembly(B) and the lower return spring(C).

KJBF501P

B
7. Install the rear wheel and tire to the rear hub.
C
8. Tighten the parking brake adjusting nut.
KJBF501N

9. Install the floor console (Refer to BD Gr. ’Console’).

PARKING BRAKE SYSTEM BR -47

10. Install the parking brake mounting bolt(A) and the ADJUSTMENT PRECEDURE OF DIH FOOT
wire(B). PARKING BRAKE

1. Adjust the adjusting nut(A) so that parking pedal stoke

is to be 88 ~ 98 mm(3.46 ~ 3.86 in) when operating
effort is 200 N(20 kgf, 44 lb) after full stroke operation
A of parking pedal over 3 times for setting parking wire.

KJBF501I

ADJUSTMENT EDE1A28B A

ADJUSTMENT OF REAR BRAKE SHOE KJBF501R

CLEARANCE

1. Raise the front of the vehicle, and make sure it is CAUTION

securely supported. 1. The parking brake adjustment must be car-
ried out after adjusting the rear shoe.
2. Remove the rear wheel and tire from the rear hub. 2. After adjusting parking brake, notice follow-
ing matter;
3. After removing the plug from the disk, rotate the
a) Must be free from clearance between ad-
toothed wheel by a screw driver until the disk is not
justing nut and pin.
moving, and then return it by 5 notches.
b) Check securely that the bake is not drag-
ging

BED-IN PROCEDURE FOR DIH FOOT PARKING

BRAKE

1. While operating the parking brake pedal for 100 N(10

kgf, 22 lb) effort, drive the vehicle 500 meters (0.31
miles) at the speed of 60 kph (37.3 mph).

2. Repeat the above procedure more than two times.

3. Must be held on at 30% uphill.

A CAUTION
After adjusting parking brake, notice following
KJBF501Q
matter;
1. Must be free from troubles when the parking
pedal is operated at 1 kN(100 kgf, 220 lb).
2. Check that all parts move smoothly.
3. the parking brake indicator lamp must be on
after the parking pedal is worked and must be
off after the pedal is released.
BR -48 BRAKE SYSTEM

PARKING BRAKE SWITCH

INSPECTION E9139D03

1. Remove the floor console and the connector(B) from

the switch(A).

KJBF501S

2. Inspect the continuity between (-) terminal and the

ground.
• When the brake lever is pulled, there should be
the continuity between them.
• When the brake lever is released, there should
be no continuity between them.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -49

ABS (ANTI-LOCK BRAKE

SYSTEM)
COMPONENTS ECF845BE

2
1

1. Front left wheel speed sensor 4. Hydrauric line

2. ABS control module(HECU) 5. Rear right wheel speed sensor
3. Front right wheel speed sensor 6. Rear left wheel speed sensor

EJBF500M
BR -50 BRAKE SYSTEM

DESCRIPTION EDF1DB1C VOLTAGE LIMITS

This specification applies to HCU(Hydraulic Control Unit) - Overvoltage

and ECU(Electronic Control Unit) of the HECU.(Hydraulic When overvoltage is detected(above 16V), the ECU
and Electronic Control Unit) switches off the valve relay and shuts down the sys-
This specification is for the wiring design and installation tem.
of ABS/TCS/ESC ECU. When voltage is returned to operating range, the sys-
This unit has the functions as follows. tem goes back to the normal condition after the initial-
- Input of signal from Pressure sensor, Steering angle ization phase.
sensor, Yaw ＆ Lateral G sensor, the wheel speed - Undervoltage
sensors attached to each wheel. In the event of undervoltage(below 10V), ABS con-
- Control of braking force / traction force/ yaw moment. trol shall be inhibited and the warning lamp shall be
- Failsafe function. turned on.
- Self diagnosis function. When voltage is returned to operating range, the
- Interface with the external diagnosis tester. warning lamp is switched off and ECU returns to
normal operating mode.
Installation position : engine compartment
- Brake tube length from Master cylinder port to HECU PUMP MOTOR CHECKING
inlet port should be max. 1m
The ECU performs a pump motor test at a speed of 15km/h
- The position should not be close to the engine block
once after IGN is switched on.
and not lower than the wheel.
DIAGNOSTIC INTERFACE
OPERATION
Failures detected by the ECU are encoded on the ECU,
The ECU shall be put into operation by switching on the stored in a EEPROM and read out by diagnostic equip-
operating voltage (IGN). ment when the ignition switch is turned on.
On completion of the initialization phase, the ECU shall be The diagnosis interface can also be used for testing the
ready for operation. ECU during production of the ECU and for actuating the
In the operating condition, the ECU shall be ready, within HCU in the test line of manufactories (Air-bleeding line or
the specified limits (voltage and temperature), to process Roll and Brake Test line).
the signals offered by the various sensors and switches in
accordance with the control algorithm defined by the soft-
ware and to control the hydraulic and electrical actuators.

WHEEL SENSOR SIGNAL PROCESSING

The ECU shall receive wheel speed signal from the four
active wheel sensors.
The wheel signals are converted to voltage signal by the
signal conditioning circuit after receiving current signal
from active wheel sensors and given as input to the MCU.

SOLENOID VALVE CONTROL

When one side of the valve coil is connected to the pos-

itive voltage that is provided through the valve relay and
the other side is connected to the ground by the semicon-
ductor circuit, the solenoid valve goes into operation.
The electrical function of the coils are always monitored by
the valve test pulse under normal operation conditions.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -51

WARNING LAMP MODULE

ESP Operation lamp

ESP OFF Warning lamp

Parking/EBD Warning lamp

ABS Warning lamp

EJBF500N

1. ABS WARNING LAMP MODULE

The active ABS warning lamp module indicates the
selftest and failure status of the ABS.The ABS warn-
ing lamp shall be on:
- During the initialization phase after IGN ON.
(continuously 3 seconds).
- In the event of inhibition of ABS functions by fail-
ure.
- During diagnostic mode.
- When the ECU Connector is seperated from
ECU.

2. PARKING/EBD WARNING LAMP MODULE

The active EBD warning lamp module indicates the
selftest and failure status of the EBD.However, in case
the Parking Brake Switch is turned on, the EBD warn-
ing lamp is always turned on regardless of EBD func-
tions.The EBD warning lamp shall be on:
- During the initialization phase after IGN ON.
(continuously 3 seconds).
- When the Parking Brake Switch is ON or brake
fluid level is low.
- When the EBD function is out of order.
- During diagnostic mode.
- When the ECU Connector is seperated from
ECU.
BR -52 BRAKE SYSTEM

ABS CONTROL ECB6DC94

1. NORMAL BRAKING without ABS

Inlet valve(EV) Outlet valve(AV) Pump motor

Operation Open Close OFF

EV EV EV EV

P MC P MC

PE PE

P AP
ACC M ACC
P AP

AV AV AV AV

LR RF LF RR

KJRE501E

NOTE
EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
ABS (ANTI-LOCK BRAKE SYSTEM) BR -53

2. DECREASE MODE

Inlet valve(EV) Outlet valve(AV) Pump motor

Operation Close Open ON(Motor speed control)

EV EV EV EV

P MC P MC

PE PE
ACC
P AP
ACC M P AP

AV AV AV AV

LR RF LF RR

KJRE501F

NOTE
EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
BR -54 BRAKE SYSTEM

3. HOLD MODE

Inlet valve(EV) Outlet valve(AV) Pump motor

Operation Close Close OFF

EV EV EV EV

P MC P MC

PE PE

P AP
ACC M ACC
P AP

AV AV AV AV

LR RF LF RR

KJRE501G

NOTE
EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
ABS (ANTI-LOCK BRAKE SYSTEM) BR -55

4. INCREASE MODE

Inlet valve(EV) Outlet valve(AV) Pump motor

Operation Open Close OFF

EV EV EV EV

P MC P MC

PE PE

P AP
ACC M ACC
P AP

AV AV AV AV

LR RF LF RR

KJRE501H

NOTE
EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
 EJBF500O
BRAKE SYSTEM

HOT IN ON OR START HOT AT ALL TIMES

See Power PASSENGER ENGINE
Distribution COMPARTMENT COMPARTMENT
JUNCTION JUNCTION
BLOCK PCM BLOCK
MODULE-2 STOP
FUSE PHOTO 48/49 FUSE PHOTO 30
10A 15A
52 C144-A
22 JE02
7 I/P-F
0.3W 1.25R
0.5P 2 4 E62
71 JC101
STOP
ENGINE A B LAMP A : Close with brake
5 M32-B COMPARTMENT See Stop pedal depressed
SWITCH Lamps
INSTRUMENT JUNCTION B : Open with brake
BLOCK PHOTO 59
CLUSTER pedal depressed
ABS BRAKE PHOTO 62 50 JE02 1 3 E62
( ! )( P )
( ABS ) 1.25G
EBD BRAKE
1 E-1
12 11 M32-C JOINT
See Data Link Details See Stop CONNECTOR
0.3P 0.3Br Lamps
PHOTO 81
14 16 EM02 PHOTO 90 6 E-1
0.5P 0.5Br 0.5B 0.5Y 0.5Gr 0.5G
22 12 26 15 14 20 E22
ABS
ABS CONTROL
ABS EBD CAN-HIGH CAN-LOW Wheel sensor Stop lamp MODULE
IND. IND. output switch UNIT
PHOTO 26
FL SIG FL VCC FR SIG FR VCC RL SIG RL VCC RR SIG RR VCC
ED4D3D56

5 16 10 9 17 6 19 8 E22
0.5G 0.5O 0.5B 0.5W
21 22 28 27 EM01
PHOTO 90
0.5B 0.5Y 0.5R 0.5L 0.5G 0.5O 0.5B 0.5W
ABS CIRCUIT DIAGRAM(1)

3 2 MF11 17 16 MF91
PHOTO 50 PHOTO 90
0.5G 0.5O 0.5B 0.5W
2 1 E45 2 1 E49 1 2 F19 1 2 F25
LEFT RIGHT LEFT RIGHT
FRONT FRONT REAR REAR
WHEEL WHEEL WHEEL WHEEL
SENSOR SENSOR SENSOR SENSOR
S P S P S P S P
PHOTO 4 PHOTO 8 PHOTO 107 PHOTO 116
BR -56
BR -57

EJBF500P
HOT IN ON OR START HOT AT ALL TIMES
ENGINE
See Power COMPARTMENT
Distribution JUNCTION
ABS1 ABS2 BLOCK
ABS FUSIBLE FUSIBLE PHOTO 30
FUSE LINK LINK
PHOTO 24 10A 40A 20A
MULTIPURPOSE
CHECK CONNECTOR
15 E20 62 61 66 JE02
MULTIPURPOSE DATA LINK
0.5G CHECK CONNECTOR CONNECTOR
18 E20 1 M04
1 EM02 PHOTO 90
0.5L 0.5L PHOTO 53
0.5G 0.75G 24 EM02 3.0W 2.0O
38 EM02 0.5L
34 EM02 PHOTO 90
0.75G
0.5L
18 11 2 3 E22
ABS
CONTROL
MODULE
PHOTO 26
Diagnosis Vbatt VR- ABS
motor relay actuation UNIT
+ECU
Motor HR- Valve
Ground monitoring actuation Moniitoring
C1
MOTOR 2A 2B 4A 4B 3A 3B 1A 1B VALVE
VALVE RELAY
ABS (ANTI-LOCK BRAKE SYSTEM)

RELAY BLOCK
T2 T1 T0 D0
IN OUT IN OUT IN OUT IN OUT
RR RL FR FL
M
4 1 E22
ABS CIRCUIT DIAGRAM(2)

2.0B 3.0B
G14 PHOTO 88
BR -58 BRAKE SYSTEM

ECU CONNECTOR
INPUT/OUTPUT(ABS) E6513856

5 6 8 9 10 11 12
1 2 3 4 *
16 17 18 19 20
* 14 1526
22
* ***

EJRF702M

Current max.permissible min.leakage

Wire No. Designation wire resistance resistance R_P
max min R_L (mΩ ) (kΩ )
1 Ground for recirculation pump 20~39 A 10 A 10
Ground for solenoid valves
4 5~15 A 2.5 A 10
and ECU
2 Voltage supply for pump motor 20~39 A 10 A 10 200
3 Voltage supply for solenoid valves 5~15 A 2 A 10 200
18 Voltage for hybrid ECU 1 A 500 mA 60 200
signal wheel speed sensor 200 to ground
5,10,17,19 6 mA 16 mA 250
FL, FR, RL,RR 1.5M to bat
Voltage supply for the active wheel 200 to ground
16,9,6,8 6 mA 16 mA 250
speed sensor FL,FR, RL, RR 1.5M to bat
wheel speed sensor output
14,24 20 mA 10 mA 250 200
(FR, RL)
11 Diagnostic wire K 6 mA 3 mA 250 200
22 ABS-warning lamp actuation 30 mA 5 mA 250 200
12 EBD-warning lamp actuation 30 mA 5 mA 250 200
20 brake light switch 10 mA 5 mA 250 200
15 CAN Low 30 mA 20 mA 250 200
26 CAN High 30 mA 20 mA 250 200
ABS (ANTI-LOCK BRAKE SYSTEM) BR -59

ABS HECU CONNECTOR

Connector terminal
Specification Condition
Number Description
Current range: Min.10A
1 Ground for recirculation pump Always
Max.20~39A
Ground for solenoid valves Current range: Min.2.5A
4 Always
and ECU Max.5~15A
2 Voltage supply for pump motor
Battery voltage Always
3 Voltage supply for solenoid valves
16
9 Voltage supply for the active wheel
Battery voltage IG ON
6 speed sensor FL,FR, RL, RR
8
5
10 signal wheel speed sensor Voltage(High) : 0.89~1.26 V
On driving
17 FL, FR, RL,RR Voltage (Low) : 0.44~0.63 V
19

11 Diagnostic wire K Voltage (High) ≥ 0.8 * IG ON On HI-SCAN commu-

Voltage (Low) ≤ 0.2 * IG ON nication
18 Voltage for hybrid ECU Battery voltage KEY ON/OFF

20 Brake light switch Voltage (High) ≥ 0.8 * IG ON BRAKE ON/OFF

Voltage (Low) ≤ 0.3 * IG ON
BR -60 BRAKE SYSTEM

SENSOR OUTPUT ON HI-SCAN(ABS)

Description Abbreviation Unit Remarks

1 Vehicle speed sensor VEH. SPD Km/h
2 Battery voltage BATT. VOL V
3 FL Wheel speed sensor FL WHEEL Km/h
4 FR Wheel speed sensor FR WHEEL Km/h
5 RL Wheel speed sensor RL WHEEL Km/h
6 RR Wheel speed sensor RR WHEEL Km/h
7 ABS Warning lamp ABS LAMP -
8 EBD Warning lamp EBD LAMP -
9 Brake Lamp B/LAMP -
10 Pump relay state PUMP RLY -
11 Valve relay state VALVE RLY -
12 Motor MOTOR -
13 Front Left valve(IN) FL INLET -
14 Front Right valve (IN) FR INLET -
15 Rear Left valve (IN) RL INLET -
16 Rear Right valve (IN) RR INLET -
17 Front Left valve (OUT) FL OUTLET -
18 Front Right valve (OUT) FR OUTLET -
19 Rear Left valve(OUT) RL OUTLET -
20 Rear Right valve (OUT) RR OUTLET -
ABS (ANTI-LOCK BRAKE SYSTEM) BR -61

STANDARD FLOW OF DIAGNOSTIC

TROUBLESHOOTING E0FBECCD

Gathering information from customer

Reoccurs Does not reoccur

Check diagnostic code Check diagnostic code

No trouble code Trouble code displayed Trouble code No trouble
displayed code
Recheck trouble code(s) then erase

Basic brake system is normal or not Recheck trouble symptom

Abnormal Normal
No trouble
code
Refer to BR-Troubleshooting Check trouble codes
Trouble code displayed

Problem is intermittent or was Inspection chart for diagnostic trouble

repaired and memory was not cleared. codes Intermittent malfunction

* Using the customer problem analysis check sheet for reference, ask the customer as much detail as
possible about the problem.
EJKB055A

NOTES WITH REGARD TO DIAGNOSIS

The phenomena listed in the following table are not abnor-

mal.

Phenomenon Explanation
System check sound When starting the engine, a thudding sound can sometimes
be heard coming from inside the engine compartment. This is
because the system operation check is being performed.
ABS operation sound 1. Sound of the motor inside the ABS hydraulic unit
operation (whine).
2. Sound is generated along with vibration of the
brake pedal (scraping).
3. When ABS operates, sound is generated from the vehicle
chassis due to repeated brake application and release
(Thump : suspension; squeak: tires)
ABS operation (Long braking distance) For road surfaces such as snow-covered and gravel roads, the
braking distance for vehicles with ABS can sometimes be longer
than that for other vehicles. Accordingly, advise the customer to
drive safely on such roads by lowering the vehicle speed.
Diagnosis detection conditions can vary depending on the diagnosis code. When checking the trouble symptom
after the diagnosis code has been erased, ensure that the requirements listed in "Comment" are met.
BR -62 BRAKE SYSTEM

HI-SCAN (PRO) CHECK

1. Turn the ignition switch OFF.

2. Connector the Hi-scan(pro) to the 16P data link con-

nector located the driver’s side kick panel.

GROUND ABS

* * 6 135 124 113 2 1

9
*** *

Memory power

EJBF500Q

3. Turn the ignition switch ON.

4. Check for diagnostic trouble using the Hi-scan(pro)

5. After completion trouble of the repair or correction of

the problem, erase the stored fault codes the clear key
on the Hi-scan(pro).

6. Disconnect the Hi-scan(pro) from the 16P data link

connector.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -63

ABS CHECK SHEET

Inspector's
ABS Check Sheet Name

Registration No.

Customer's Name Registration Year

VIN.

Date Vehicle Km
Odometer
Brought In Miles

Date the Problem First Occurred

Frequency of Occurence of Problem Continuous Intermittent ( times a day)

ABS does not operate.

Symptoms ABS does not operate efficiently. Intermittent ( times a day)

ABS Warning
Light Abnormal Remains ON Does not light up

Diagnostic 1st Time Normal Code Malfunction Code (Code )

Trouble Code
Check 2nd Time Normal Code Malfunction Code (Code )

EJDA017A
BR -64 BRAKE SYSTEM

PROBLEM SYMPTOMS TABLE

If a normal code is displayed during the DTC check but the

problem still occurs, check the circuits for each problem
symptom in the order given in the table below and proceed
to the relevant troubleshooting page.

Symptom Suspect Area See page

ABS does not operate. Only when 1. -4. are all normal and the problem
is still occurring, replace the HECU.
1. Check the DTC reconfirming that the normal
code is output. BR - 65
2. Power source circuit.
3. Speed sensor circuit.
4. Check the hydraulic circuit for leakage.
ABS does not operate intermittently. Only when 1. -4. are all normal and the problem is
still occurring, replace the ABS actuator assembly.
1. Check the DTC reconfirming that the normal
code is output. BR - 67
2. Wheel speed sensor circuit.
3. Stop lamp switch circuit.
4. Check the hydraulic circuit for leakage.
Communication with Hi-scan (pro) is not possible. 1. Power source circuit
BR - 68
(Communication with any system is not possible) 2. Diagnosis line
Communication with Hi-scan (pro) is not possible. 1. Power source circuit
(Communication with ABS only is not possible) 2. Diagnosis line BR - 69
3. HECU
When ignition key is turned ON (engine OFF), 1. ABS warning lamp circuit
BR - 70
the ABS warning lamp does not light up. 2. HECU
Even after the engine is started, the ABS 1. ABS warning lamp circuit
BR - 71
warning lamp remains ON. 2. HECU

CAUTION
During ABS operation, the brake pedal may vi-
brate or may not be able to be depressed. Such
phenomena are due to intermittent changes in hy-
draulic pressure inside the brake line to prevent
the wheels from locking and is not an abnormal-
ity.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -65

ABS Does Not Operate.

EJBF505T

DETECTING CONDITION

Trouble Symptoms Possible Cause

Brake operation varies depending on driving conditions - Faulty power source circuit
and road surface conditions, so diagnosis can be - Faulty wheel speed sensor circuit
difficult.However if a normal DTC is displayed, check - Faulty hydraulic circuit for leakage
the following probable cause. When the problem is still - Faulty HECU
occurring, replace the ABS control module.

INSPECTION PROCEDURES
ON (+) (-)
V
DTC INSPECTION

1. Connect the Hi-Scan (pro) with the data link connector

and turn the ignition switch ON.

2. Verify that the normal code is output. 5 6 8 9 10 11 12

Is the normal code output? 1 2 3 4 *
16 17 18 19 20
* 14 15
* * * * 26
22

NO
EJRF702O

▶ Check the power source circuit.

CHECK THE GROUND CIRCUIT.

YES 1. Disconnect the connector from the ABS control mod-

ule.
▶ Erase the DTC and recheck using Hi-Scan (pro).
2. Check for continuity between terminals 1,4 of the ABS
CHECK THE POWER SOURCE CIRCUIT. control module harness side connector and ground
point.
Is there continuity?
1. Disconnect the connector from the ABS control mod-
ule.
YES
2. Turn the ignition switch ON, measure the voltage be-
tween terminal 18 of the ABS control module harness ▶ Check the wheel speed sensor circuit.
side connector and body ground.
NO
Specification: approximately B+
▶ Repair an open in the wire and ground point.

Is the voltage within specification? Ω

YES

▶ Check the ground circuit.

NO 1 2 3 4
5 6
* 8 9 10 11 12
* 14 15
16 17 18 19 20
* * * * 26
22

▶ Check the harness or connector between the fuse

(10A) in the engine compartment junction block and
the ABS control module. Repair if necessary. EJRF702P
BR -66 BRAKE SYSTEM

CHECK THE WHEEL SPEED SENSOR CIRCUIT.

Refer to the DTC troubleshooting procedures.

Is it normal?

YES

▶ Check the hydraulic circuit for leakage.

NO

▶ Repair or replace the wheel speed sensor.

CHECK THE HYDRAULIC CIRCUIT FOR LEAKAGE.

Refer to the hydraulic lines.

Inspect leakage of the hydraulic lines.
Is it normal?

YES

▶ The problem is still occurring, replace the ABS control

module.

NO

▶ Repair the hydraulic lines for leakage.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -67

ABS Does Not Operate Intermittently.

EJBF505U

DETECTING CONDITION

Trouble Symptoms Possible Cause

Brake operation varies depending on driving conditions - Faulty power source circuit
and road surface conditions, so diagnosis can be - Faulty wheel speed sensor circuit
difficult.However if a normal DTC is displayed, check - Faulty hydraulic circuit for leakage
the following probable cause. When the problem is still - Faulty HECU
occurring, replace the ABS control module.

INSPECTION PROCEDURES ▶ Check the hydraulic circuit for leakage.

DTC INSPECTION NO
1. Connect the Hi-Scan (pro) with the data link connector
▶ Repair the stop lamp switch. Repair an open in the
and turn the ignition switch ON.
wire between the ABS control module and the stop
2. Verify that the normal code is output. lamp switch.
Is the normal code output?
)-( )+(
NO V

▶ Check the wheel speed sensor circuit.

YES

▶ Erase the DTC and recheck using Hi-Scan (pro). 1 2 3 4

5 6
* 8 9 10 11 12
* 14 15
16 17 18 19 20
* * * * 26
22

CHECK THE WHEEL SPEED SENSOR CIRCUIT.

Refer to the DTC troubleshooting procedures.

EJRF702Q
Is it normal?
CHECK THE HYDRAULIC CIRCUIT FOR LEAKAGE.
YES
Refer to the hydraulic lines.
▶ Check the stop lamp switch circuit. Inspect leakage of the hydraulic lines.
Is it normal?
NO
YES
▶ Repair or replace the wheel speed sensor.
▶ The problem is still occurring, replace the ABS control
CHECK THE STOP LAMP SWITCH CIRCUIT.
module.
1. Check that stop lamp lights up when brake pedal is
NO
depressed and turns off when brake pedal is released.

2. Measure the voltage between terminal 20 of the ABS ▶ Repair the hydraulic lines for leakage.
control module harness side connector and body
ground when brake pedal is depressed.

Specification: approximately B+

Is the voltage within specification?

YES
BR -68 BRAKE SYSTEM

Communication with Hi-scan (pro) is not possible.

(Communication with any system is not possible)
EJBF505V

DETECTING CONDITION

Trouble Symptoms Possible Cause

Possible defect in the power supply system (including - An open in the wire
ground) for the diagnosis line. - Poor ground
- Faulty power source circuit

INSPECTION PROCEDURES
)-( )+(
Ω
CHECK THE POWER SUPPLY CIRCUIT FOR THE DI-
AGNOSIS
Measure the voltage between terminal 9 of the data link
connector and body ground.

Specification: approximately B+
* * 6 135 124 113 2 1
9
*** *
Is voltage within specification?

YES
EJRF702S

▶ Check the ground circuit for the diagnosis.

NO

▶ Repair an open in the wire. Check and replace fuse

(15A) from the engine compartment junction block.

)-( )+(
V

* * 6 135 124 113 2 1

9
*** *

EJRF702R

CHECK THE GROUND CIRCUIT FOR THE

DIAGNOSIS

Check for continuity between terminal 5 of the data link

connector and body ground.
Is there continuity?

NO

▶ Repair an open in the wire between terminal 5 of the

data link connector and ground point.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -69

Communication with Hi-scan (pro) is not possible.

(Communication with ABS only is not possible)
EJBF505W

DETECTING CONDITION

Trouble Symptoms Possible Cause

When communication with Hi-Scan (pro) is not possible, - An open in the wire
the cause may be probably an open in the HECU power - Faulty HECU
circuit or an open in the diagnosis output circuit. - Faulty power source circuit

INSPECTION PROCEDURES
ON (+) (-)
V
CHECK FOR CONTINUITY IN THE DIAGNOSIS LINE

1. Disconnect the connector from the ABS control mod-

ule.

2. Check for continuity between terminals 11 of the ABS

control module connector and 1 of the data link con- 5 6 8 9 10 11 12
nector.
1 2 3 4 *
16 17 18 19 20
* 14 15
* * * * 26
22

Is there continuity?

YES EJRF702O

▶ Check the power source of ABS control module. CHECK FOR POOR GROUND

NO Check for continuity between terminal 5 of the data link

connector and ground point.
▶ Repair an open in the wire.
YES
CHECK THE POWER SOURCE OF ABS CONTROL
MODULE ▶ Replace the ABS control module and recheck.
1. Disconnect the connector from the ABS control mod-
NO
ule.

2. Turn the ignition switch ON, measure the voltage be- ▶ Repair an open in the wire or poor ground.
tween terminal 18 of the ABS control module harness
side connector and body ground. )-( )+(
Ω
Specification: approximately B+

Is voltage within specification?

YES
* * 6 135 124 113 2 1
9
▶ Check for poor ground.
*** *

NO
EJRF702S

▶ Check the harness or connector between the fuse

(10A) in the engine compartment junction block and
the ABS control module.Repair if necessary.
BR -70 BRAKE SYSTEM

When Ignition Key Is Turned ON (engine OFF), The ABS Warning Lamp Does Not Light Up.
EJBF505X

DETECTING CONDITION

Trouble Symptoms Possible Cause

When current flows in the HECU the ABS warning lamp - Faulty ABS warning lamp bulb
turns from ON to OFF as the initial check.Therefore - Blown No.2 fuse (10A) in the engine
if the lamp does not light up, the cause may be an compartment junction block
open in the lamp power supply circuit, a blown bulb, - Faulty ABS warning lamp module
an open in the both circuits between the ABS warning - Faulty HECU
lamp and the HECU, and the faulty HECU.

INSPECTION PROCEDURES

PROBLEM VERIFICATION
ON )+( )-(
Disconnect the connector from the ABS control module
and turn the ignition switch ON. V
Does the ABS warning lamp light up?

YES

▶ It is normal. Recheck the ABS control module. 8 7 6 5 4 3 2 1

16 15 14 13 12 11 10
NO *
▶ Check the power source for the ABS warning lamp.
EJRF702V
CHECK THE POWER SOURCE FOR THE ABS
WARNING LAMP
CHECK FOR BLOWN FUSE
1. Disconnect the instrument cluster connector and turn
Check continuity of fuse (10A) from the engine compart-
the ignition switch ON.
ment junction block.
2. Measure the voltage between terminal 5 of the cluster Is there continuity?
harness side connector and body ground.
YES
Specification: approximately B+
▶ Repair an open in the wire between ABS fuse and 1 of
cluster connector.
Is voltage within specification?
NO
YES
▶ Replace the blown fuse.
▶ Repair bulb or instrument cluster assembly.

NO

▶ Check for blown fuse.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -71

Even After The Engine Is Started, The ABS Warning Lamp Remains ON.
EJBF505Y

DETECTING CONDITION

Trouble Symptoms Possible Cause

If the HECU detects trouble, it lights the ABS warning - An open in the wire
lamp while at the same time prohibiting ABS control. - Faulty instrument cluster assembly
At this time, the HECU records a DTC in memory.Even - Faulty ABS warning lamp module
though the normal code is output, the ABS warning - Faulty HECU
lamp remains ON, then the cause may be probably an
open or short in the ABS warning lamp circuit.

INSPECTION PROCEDURES ▶ Repair an open in the wire between cluster and ABS
control module.
CHECK DTC OUTPUT.

1. Connect the Hi-Scan (pro) to the 16P data link con-

nector located behind the driver’s side kick panel.

2. Check the DTC output using Hi-Scan (pro).

Is DTC output?

YES

▶ Repair circuit indicated by code output.

NO

▶ Check instrument cluster.

CHECK INSTRUMENT CLUSTER

Disconnect the cluster connector and turn the ignition

switch ON.
Does the ABS warning lamp remains ON?

YES

▶ Replace the instrument cluster.

NO

▶ Check for open the wire.

CHECK FOR OPEN IN THE WIRE

Check for continuity in the wire between cluster and ABS

control module.
Is there continuity?

YES

▶ Replace the ABS control module and recheck.

NO
BR -72 BRAKE SYSTEM

BLEEDING OF BRAKE SYSTEM 4. Select and operate according to the instructions on

the hi-scan (Pro) screen.
This procedure should be followed to ensure adequate
bleeding of air and filling of the ABS unit, brake lines and
CAUTION
master cylinder with brake fluid.
You must obey the maximum operating time of the
1. Remove the reservoir cap and fill the brake reservoir ABS motor with the hi-scan (Pro) to prevent the
with brake fluid. motor pump from burning.

CAUTION 1) Select hyundai vehicle diagnosis.

If there is any brake fluid on any painted surface, 2) Select vehicle name.
wash it off immediately.
3) Select Anti-Lock Brake system.
NOTE
4) Select air bleeding mode.
When pressure bleeding, do not depress the brake
pedal. 5) Press "YES" to operate motor pump and solenoid
Recommended fluid........ DOT3 or DOT4 valve.

2. Connect a clear plastic tube to the wheel cylinder 1.6 AIR BLEEDING MODE
bleeder plug and insert the other end of the tube into ABS AIR BLEEDING STATUS
a half filled clear plastic bottle.
01. SOLENOID VALVE STATUS CLOSE
6.86~12.74 Nm (70~130 kgf cm, 5.09~9.45 lb-ft) 02. MOTOR PUMP STATUS OFF
DO YOU WANT TO START ?
(PRESS [YES] KEY)

EJDA014F

6) Wait 60 sec. before operating the air bleeding. (If

not, you may damage the motor.)

1.6 AIR BLEEDING MODE

ABS AIR BLEEDING STATUS
EJRF501H
01. SOLENOID VALVE STATUS OPEN
3. Connect the hi-scan (pro) to the data link connector 02. MOTOR PUMP STATUS ON
located underneath the dash panel. TIME : AUTOMATIC COUNT (1-60 SEC.)

EJDA014G

EJBF500R
ABS (ANTI-LOCK BRAKE SYSTEM) BR -73

5. Pump the brake pedal several times, and then loosen

the bleeder screw until fluid starts to run out without
bubbles. Then close the bleeder screw.

6. Repeat step 5 until there are no more bubbles in the

fluid for each wheel.

Front right Rear right

Front left Rear left

EJRF702W

7. Tighten the bleeder screw.

Bleed screw tightening torque:

6.86~12.74 Nm (70 ~130 kgf·cm, 5.09 ~ 9.45 lb-ft)
BR -74 BRAKE SYSTEM

DIAGNOSTIC TROUBLE CODE CHART(DTC)

WARNING LAMP SEE

DTC DESCRIPTION REMARK
ABS EBD ESP PAGE

C1101 BATTERY VOLTAGE HIGH О О О BR - 76

C1102 BATTERY VOLTAGE LOW О О BR - 81

C1200 FL WHEEL SPEED SENSOR- OPEN/SHORT О О BR - 84

FL WHEEL SENSOR- RANGE/
C1201
PERFORMANCE О О BR - 90

C1202 FL WHEEL SPEED SENSOR-NO SIGNAL О О BR - 93

C1203 FR WHEEL SPEED SENSOR- OPEN/SHORT О О BR - 84

FR WHEEL SENSOR- RANGE/
C1204
PERFORMANCE О О BR - 90

C1205 FR WHEEL SPEED SENSOR-NO SIGNAL О О BR - 93

C1206 RL WHEEL SPEED SENSOR- OPEN/SHORT О О BR - 84

RL WHEEL SENSOR- RANGE/
C1207 О О BR - 90
PERFORMANCE
C1208 RL WHEEL SPEED SENSOR-NO SIGNAL О О BR - 93

C1209 RR WHEEL SPEED SENSOR- OPEN/SHORT О О BR - 84

RR WHEEL SENSOR- RANGE/
C1210
PERFORMANCE О О BR - 90

C1211 RR WHEEL SPEED SENSOR-NO SIGNAL О О BR - 93

C1213 WHEEL SPEED FREQUENCY ERROR О О BR - 97

C1235 PRESSURE SENSOR-ELECTRICAL О ESP BR - 100

C1237 PRESSURE SENSOR-SIGNAL FAULT О ESP BR - 103

C1260 STEERING ANGLE SENSOR-SIGNAL О ESP BR - 104

STEERING ANGLE SENSOR NOT
C1261
CALIBRATED О ESP BR - 109

YAW RATE ＆ LATERAL G SENSOR-

C1282 О ESP BR - 112
ELECTRICAL
C1283 YAW RATE ＆ LATERAL G SENSOR-SIGNAL О ESP BR - 118

C1503 ESP SWITCH ERROR О ESP BR - 122

C1513 BRAKE LIGHT SWITCH MALFUNCTION О ESP BR - 125

C1604 ECU HARDWARE ERROR О О О BR - 130

C1605 CAN CONTROL HARDWARE ERROR О ESP BR - 131

C1611 CAN TIME OUT-ECM О ESP BR - 132

C1612 CAN TIME OUT-TCU О ESP BR - 133

C1616 CAN BUS OFF О ESP BR - 134

ABS (ANTI-LOCK BRAKE SYSTEM) BR -75

WARNING LAMP SEE

DTC DESCRIPTION REMARK
ABS EBD ESP PAGE

C1623 CAN TIMEOUT STEERING ANGLE SENSOR О ESP BR - 136

C1625 CAN TIME OUT-ESC О ESP BR - 140

C1626 IMPLAUSIBLE CONTROL О О ESP BR - 141

C1702 VARIANT CODING О О О ESP BR - 142

C2112 VALVE RELAY MALFUNCTION О О О BR - 144

C2308 FL INLET VALVE MALFUNCTION О О О BR -147

C2312 FL OUTLET VALVE MALFUNCTION О О О BR - 151

C2316 FR INLET VALVE MALFUNCTION О О О BR - 147

C2320 FR OUTLET VALVE MALFUNCTION О О О BR - 151

C2324 RL INLET VALVE MALFUNCTION О О О BR - 147

C2328 RL OUTLET VALVE MALFUNCTION О О О BR - 151

C2332 RR INLET VALVE MALFUNCTION О О О BR - 147

C2336 RR OUTLET VALVE MALFUNCTION О О О BR - 151

C2366 TC VALVE PRIMARY(USV1) ERROR О О О ESP BR - 153

C2370 TC VALVE SECONDARY (USV2) ERROR О О О ESP BR - 153

C2372 ESP VALVE 1(HSV1) ERROR О О О ESP BR - 153

C2374 ESP VALVE 2 (HSV2) ERROR О О О ESP BR - 153

C2402 MOTOR-ELECTRICAL О О О BR - 155

BR -76 BRAKE SYSTEM

DTC C1101 BATTERY VOLTAGE HIGH

COMPONENT LOCATION EFEBF39F

EJBF501A

GENERAL DESCRIPTION E71B0EA7

The ABS ECU(Electronic Control Unit) checks the battery voltage to determine, as a safety issue, whether the ABS system
can operate normally or not. The normal battery voltage range is essential for controlling the ABS system as instended.

DTC DESCRIPTION E0F88E5D

The ABS ECU monitors battery voltage by reading the value of voltage. When the voltage is higher than the expected
normal value, this code is set, and the ABS/EBD/ESP functions are prohibited. If the voltage recovers, to within normal
operating ranges, then the controller returns to normal operation as well.

DTC DETECTING CONDITION E9F448CD

Item Detecting Condition Possible cause

DTC Strategy • Battery Voltage Monitoring
Monitoring
• Continuous (Over voltage faults will be always stored.)
Period
• When Vign is higher than 16.8 V.
- If the voltage is recovered to 16.6 V, the controller • Poor connection in power
Enable
returns to normal state. supply circuit (IGN+)
Conditions
- The monitored supply voltage is filtered and limited • Faulty Alternator
to a rise time of 4 volts per second. • Faulty HECU
• The ABS/EBD/ESP functions are inhibited.
- The proper function of valves and return pump
Fail Safe is not guaranteed.
• The ABS/EBD/ESP warning lamps are activated.
• The supply voltage to wheel speed sensor is interrupted.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -77

MONITOR SCANTOOL DATA E3EDF0B0

1. Connect scantool to Data Link Connector(DLC)

2. Engine "ON".

3. Monitor the "BATTERY VOLTAGE" parameter on the scantool.

Specification : Approx. 14.5 ± 0.3 V (25 C)

Veltage regulator ambient Regulating voltage

temperature

-30 14.2 ~ 15.3

25 14.2 ~ 14.8

135 13.3 ~ 14.8

Fig1 Fig2

Fig 1) Test Condition : Ignition "ON" & Engine "ON" Normal Data
Fig 2) "Temperature & Regulating Voltage" Specification.
EJBF501B

4. Is parameter displayed within specifications?

YES

▶ Fault is intermittent caused by poor connection in power harness (IGN+) and/or HECU’s connector or was repaired
and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corro-
sion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle
Repair" procedure.

NO

▶ Go to "W/Harness Inspection" procedure.

BR -78 BRAKE SYSTEM

TERMINAL & CONNECTOR INSPECTION E3A043D2

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused
by interference from other electrical systems, and mechanical or chemical damage.

2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or
damage.

3. Has a problem been found?

YES

▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.

NO

▶ Go to "Alternator Output Voltage Inspection" procedure.

ALTERNATOR OUTPUT VOLTAGE INSPECTION

1. Engine "ON".

2. Measure voltage between the battery terminal(+) and the battery terminal(-).

Specification : Approx. 14.5 ± 0.3 V (25 C)

V Veltage regulator ambient Regulating voltage

temperature

-30 14.2 ~ 15.3

Battery
25 14.2 ~ 14.8
1. Battery Terminal(+)
2. Battery Terminal(-) 135 13.3 ~ 14.8

EJBF501C

3. Is the measured voltage within specifications?

YES

▶ Go to "Power Circuit Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between alternator and battery. If OK repair or replace alternator
and then go to "Verification of vehicle Repair" procedure.

POWER SUPPLY CIRCUIT INSPECTION E651915E

1. Engine "ON".

2. Measure voltage between the battery terminal(+) and terminal "28" of the HECU harness connector.

Specification : Approx. below 0.2 V

ABS (ANTI-LOCK BRAKE SYSTEM) BR -79

<E41>

<ABS>
18. IGNITION(+)
5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** * <ESP>

28. IGNITION(+)

BATTERY

EJBF501D

3. Is the measured voltage within specifications?

YES

▶ Go to "Ground Circuit Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between the battery terminal(+) and terminal "28" of the HEC
Uharness connector. Repair as necessary and then go to "Verification of vehicle Repair" procedure.

GROUND CIRCUIT INSPECTION EBFBEEEF

1. Ignition "OFF".

2. Disconnect HECU connector.

3. Measure resistance between terminal "4" of the HECU harness connector and chassis ground.

Specification : Approx. below 1 Ω

<E41>

4. Ground

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

EJBF501E
BR -80 BRAKE SYSTEM

4. Is the measured resistance within specifications?

YES

▶ Go to "Component Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between terminal "4" of the HECU harness connector and chas-
sis ground. Repair as necessary and then go to "Verification of vehicle Repair" procedure.

COMPONENT INSPECTION E8B253A3

1. Ignition "OFF"

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by poor connection in power harness (IGN+), faulty Alternator and/or faulty HECU or
was repaired and HECU memory was not cleared. Go to the applicable roubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR EF5084AA

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes(DTCs)" mode

2. Using a scantool, Clear DTC.

3. Operate the vehicle within DTC Detecting Condition in General Information

4. Are any DTCs present?

YES

▶ Go to the applicable troubleshooting procedure.

NO

▶ System performing to specification at this time.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -81

DTC C1102 BATTERY VOLTAGE LOW

COMPONENT LOCATION ED7D859F

Refer to DTC C1101.

GENERAL DESCRIPTION EAB758CB

Refer to DTC C1101.

DTC DESCRIPTION EA1E5DB1

Refer to DTC C1101.

DTC DETECTING CONDITION E689EEDA

Item Detecting Condition Possible cause

DTC Strategy • Battery Voltage Monitoring
• Continuous (Under voltage faults are only entered
Monitoring Period
in the EEPROM if the vehicle speed is ＞ 6 km/h.)
• When Vign is lower than 9.3 V outside
ABS/ESP control.
• When Vign is lower than 9.2V inside
Enable ABS/ESP control.
Case1 Conditions - If IGN voltage is recovered to 9.6 V, the
(Low system recovers to normal state.
voltage) - The monitored supply voltage is filtered and • Poor connection in power
limited to a rise time of 4 volts per second. supply circuit (IGN+)
• Faulty HECU
• The ABS/ESP functions are inhibited.
Fail Safe
• The ABS/ESP warning lamps are activated.
• When Vign is lower than 7.7 V.
- If IGN voltage is recovered to 7.8 V, the
Enable
Case2 system recovers to normal state.
Conditions
(Under - The monitored supply voltage is filtered and
voltage) limited to a rise time of 4 volts per second.
• The ABS/EBD/ESP functions are inhibited.
Fail Safe
• The ABS/EBD/ESP warning lamps are activated.

MONITOR SCANTOOL DATA EB1BD348

1. Connect scantool to Data Link Connector(DLC)

2. Engine "ON".

3. Monitor the "BATTERY VOLTAGE" parameter on the scantool.

Specification : Approx. B+
BR -82 BRAKE SYSTEM

Fig1

Fig 1) Test Condition : Ignition "ON" & Engine "OFF" Normal Data

EJBF501G

4. Is parameter displayed within specifications?

YES

▶ Fault is intermittent caused by poor connection in power harness (IGN+) and/or HECU’s connector or was repaired
and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corro-
sion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle
Repair" procedure

NO

▶ Go to "W/Harness Inspection" procedure.

TERMINAL ＆ CONNECTOR INSPECTION E330E6E0

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused
by interference from other electrical systems, and mechanical or chemical damage.

2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or
damage.

3. Has a problem been found?

YES

▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.

NO

▶ Go to "Power Circuit Inspection" procedure.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -83

POWER SUPPLY CIRCUIT INSPECTION ECE289C7

1. Engine "ON".

2. Measure voltage between the battery terminal(+) and terminal "28" of the HECU harness connector.

Specification : Approx. B+

<E41>

<ABS>
18. IGNITION(+)
5 6 8 9 10 11 12 13 14 15 16 18 20
1 2 3 4 *
26 27 28 29 30 31
* * * * *44* *46
35 36 37 40
*** ** *** * <ESP>
28. IGNITION(+)

BATTERY

EJBF501D

3. Is the measured voltage within specifications?

YES

▶ Go to "Ground Circuit Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between the battery terminal(+) and terminal "28" of the HECU
harness connector. Check for open or blown 10 A ABS fuse referring to "Circuit Diagram". Repair as necessary and
then go to "Verification of vehicle Repair" procedure.

GROUND CIRCUIT INSPECTION E73C37CE

Refer to DTC C1101.

COMPONENT INSPECTION EBBCFCD0

Refer to DTC C1101.

VERIFICATION OF VEHICLE REPAIR E4CC26DE

Refer to DTC C1101.

BR -84 BRAKE SYSTEM

DTC C1200 FL WHEEL SPEED SENSOR-OPEN/SHORT

DTC C1203 FR WHEEL SPEED SENSOR-OPEN/SHORT
DTC C1206 RL WHEEL SPEED SENSOR-OPEN/SHORT
DTC C1209 RR WHEEL SPEED SENSOR-OPEN/SHORT

COMPONENT LOCATION E59E7CC5

EJBF501J

GENERAL DESCRIPTION E8F79EE1

The wheel speed sensor is the essential component the ABS ECU uses to calculate vehicle speed and to determine
whether wheel lock occurs. For example, rear wheel speed signal is used as a referecnce value, for vehicle speed, in
front wheel drive vehicles, and if a difference between front and rear wheel speed occurs, then ABS control is performed.
Wheel speed sensor is active hall-sensor type and good at temperature and noise chariteristic. Digital wave is produced
as tone wheel rotate according as hall sensor principle. Frequency of duty wave is changed in proportion to rotation of
tone wheel and HECU calculate vehicle speed by this frequency.

DTC DESCRIPTION EBCD6D7B

The ABS ECU monitors the wheel speed sensor circuit continuously. A direct current is supplied in the wheel-speed
sensor by a power source in the input amplifier of the control unit. If the WSS circuit is broken, in that case a fault is
detected by detecting abnormal input current. HECU cut off the voltage supply to wheel sensor channel which had a fault
and prevent vehicle’s damage due to super heated harness. If one or more defects has detected, DTC code of defected
wheel will be stored. Mutual short between sensors is detected by executing self diagnosis successively at corresponding
wheel when ignition ON. Warning lamp is turned OFF unless fault is detected any more when the IG KEY is turned ON
again.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -85

DTC DETECTING CONDITION E86B1338

Item Detecting Condition Possible cause

DTC Strategy • Voltage monitoring
Monitoring
• Once after power up.
Period

Case1 • Shorts between WSS lines and shorts to UZ

Enable can be detected by switching single WSS
Conditions channels in sequence. If there is an error
after end of test, a failure is reconized.
Monitoring
• Continuous
Period
Case2 • When the sensor current levels are out
Enable
of permissible range(LOW : 7 mA, HIGH
Conditions
: 14 mA) for 200 ms.
• Sensor failure outside of the ABS control cycle
1) Only one wheel failure : Only the ABS/ESP
functions are inhibited. The ABS/ESP
warning lamps are activated and the EBD
warning lamp is not activated.
2) Two wheels failure : Only the ABS/ESP
functions are inhibited. The ABS/ESP
warning lamps are activated and the EBD • Open or short of Wheel
warning lamp is not activated. speed sensor circuit
3) More than 3 wheels failure :System • Faulty Wheel speed sensor
down. The ABS/EBD/ESP functions • Faulty HECU
are inhibited. The ABS/EBD/ESP
warning lamps are activated.

• Sensor failure inside the ABS control cycle

1) One front wheel failure : Inhibit the
Fail Safe ABS/ESP control. Pressure is increased
on a front wheel, Pressure is decreased on
a rear wheel. After the ABS/ESP control,
the ABS/ESP functions are inhibited. The
ABS/ESP warning lamps are activated and
the EBD warning lamp is not activated.
2) Two wheels failure : Inhibit the ABS/ESP
control. Pressure is increased on a front
wheel, Pressure is decreased on a rear
wheel. After the ABS/ESP control, the
ABS/ESP functions are inhibited. The
ABS/ESP warning lamps are activated and
the EBD warning lamp is not activated.
3) 3More than 3 wheels failure : System
down. The ABS/EBD/ESP functions
are inhibited. The ABS/EBD/ESP
warning lamps are activated.
BR -86 BRAKE SYSTEM

MONITOR SCANTOOL DATA EABCFCA0

1. Engine "ON".

2. Connect scantool to Data Link Connector(DLC).

3. Start and drive vehicle in gear and maintain vehicle speed is approx. 10 km/h or more(6 mph or more)

4. Monitor the "Wheel speed sensor" parameter on the Scantool.

Specification : Approx. 10 km/h or more (6 mph or more)

Fig1 Fig2

Fig 1) Test Condition : Drive vehicle in 10 km/h or more. (6 mph or more) Normal Data
Fig 2) Test Condition : Drive vehicle in 10 km/h or more. (6 mph or more) Normal wave

EJBF501K

5. Is parameter displayed within specifications?

YES

▶ Fault is intermittent caused by poor connection in wheel speed sensor harness and/or HECU’s connector or was
repaired and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending,
corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of
Vehicle Repair" procedure.

NO

▶ Go to "W/Harness Inspection" procedure.

TERMINAL ＆ CONNECTOR INSPECTION ECC92A27

Refer to DTC C1102.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -87

POWER SUPPLY CIRCUIT INSPECTION EC9FC2AB

1. Ignition "ON".

2. Measure voltage between terminal (front:"1", rear:"2") of the wheel speed sensor harness connector and chassis
ground.

Specification : Approx. B+

[FRONT] [REAR]

2 1 1. Wheel speed sensor(+) 1 2 1. Wheel speed sensor(+)

2. Wheel speed sensor(-) 2. Wheel speed sensor(-)

V V
EJBF501L

3. Is the measured voltage within specifications?

YES

▶ Go to "Signal Circuit Inspection" procedure.

NO

▶ Check for open or short to GND in wheel speed sensor harness between terminal (front:"1", rear:"2") of the wheel
speed sensor harness connector and terminal of the HECU harness connector. Repair as necessary and then go to
"Verification of vehicle Repair" procedure.
▶ If OK, go to "Component inspection" procedure.

HECU harness connector (Voltage)

DTC LOCATION
ABS ESP
DTC C1200 Front Left 16 26
DTC C1203 Front Right 9 9
DTC C1206 Rear Left 6 6
DTC C1209 Rear Right 8 8
BR -88 BRAKE SYSTEM

SIGNAL CIRCUIT INSPECTION ECA51DA3

1. Lift the vehicle by lift.

2. Ignition "ON".

3. Turn the wheel with hand.

4. Measure wave between terminal of the HECU harness connector and chassis ground.

Specification : High : 1.4 V , Low : 0.7 V

<ESP>

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

EJBF501M

HECU harness connector (Signal)

DTC LOCATION
ABS ESP
DTC C1200 Front Left 5 5
DTC C1203 Front Right 10 10
DTC C1206 Rear Left 17 27
DTC C1209 Rear Right 19 29

5. Is the measured wave within specifications?

YES

▶ Go to "Component Inspection" procedure.

NO

▶ Check for open or short to GND in wheel speed sensor harness between terminal (front:"2", rear:"1") of the wheel
speed sensor harness connector and terminal of the HECU harness connector. Repair as necessary and then go to
"Verification of vehicle Repair" procedure.
If OK, substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected,
replace Wheel speed sensor and then go to "Verification of Vehicle Repair" procedure.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -89

COMPONENT INSPECTION E622E3CF

Refer to DTC C1101.

VERIFICATION OF VEHICLE REPAIR E6C88AEE

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes(DTCs)" mode

2. Using a scantool, Clear DTC.

3. Operate the vehicle within DTC Detecting Condition in General Information.(Start and drive vehicle in gear and main-
tain vehicle speed is approx. 10 km/h or more(6 mph or more))

4. Are any DTCs present ?

YES

▶ Go to the applicable troubleshooting procedure.

NO

▶ System performing to specification at this time.

BR -90 BRAKE SYSTEM

DTC C1201 FL WHEEL SENSOR-RANGE/PERFORMANCE

DTC C1204 FR WHEEL SENSOR-RANGE/PERFORMANCE
DTC C1207 RL WHEEL SENSOR-RANGE/PERFORMANCE
DTC C1210 RR WHEEL SENSOR-RANGE/PERFORMANCE

COMPONENT LOCATION E3793CBD

Refer to DTC C1200.

GENERAL DESCRIPTION EC1060FC

Refer to DTC C1200.

DTC DESCRIPTION E0D07AE7

The ABS ECU monitors the wheel speed sensor signal continuously. This code is set when an abnormal signal due to air
gap problem or an abnormal speed change ratio are detected at the vehicle speed between 10 km/h to 80 km/h. Warning
lamp is turned OFF unless fault is detected any more when the IG KEY is turned ON again, and wheel speed is more
than 12 Km/h.

DTC DETECTING CONDITION E5F5BBC8

Item Detecting Condition Possible cause

DTC Strategy • Signal monitoring
• The monitoring is active from 10 km/h to 80
Monitoring
km/h and if no ABS-control is active at a
Period
front wheel and a rear wheel.

Case1 • Every time, if a gap in the wheel speed sensor

signal occurs cyclically with one wheel rotation,
Enable
a fault counter is increased by one. If the fault • Improper installation of wheel
Conditions
counter exceeds its limit of 6, a wheel specific speed sensor
fault is stored in the EEPROM. • Abnormal Rotor and wheel
Monitoring bearing
• Continuous • Faulty Wheel speed sensor
Period
• Faulty HECU
• If following interference and signal disturbance
Case2 is detected, a failure is set after 10 s.
Enable non-plausible high frequency received.
Conditions non-plausible high wheel acceleration.
non-plausible high wheel jurk.
non-plausible delta T and edges at low speed.
Fail Safe Refer to DTC C1200.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -91

MONITOR SCANTOOL DATA E1AF7F83

1. Engine "ON".

2. Connect scantool to Data Link Connector(DLC).

3. Start and drive vehicle in gear and maintain vehicle speed is approx. 12 km/h or more(7 mph or more)

4. Monitor the "Wheel speed sensor" parameter on the Scantool.

Specification : Approx. 12 km/h or more (7 mph or more)

Fig1 Fig2

Fig 1) Test Condition : Drive vehicle in 12 km/h or more. (7 mph or more) Normal Data
Fig 2) Test Condition : Drive vehicle in 12 km/h or more. (7 mph or more) Normal wave

EJBF501O

5. Is parameter displayed within specifications?

YES

▶ Fault is intermittent caused by poor connection in wheel speed sensor harness and/or HECU’s connector or was
repaired and HECU memory was not cleared. Go to "Compont Inspection" procedure.

NO

▶ Check for improper installation of wheel speed sensor. If NG, repair as necessary and then go to "Verification of
vehicle Repair" procedure.
▶ Check for damage of rotor teeth or wheel bearing. If NG, repair as necessary and then go to "Verification of vehicle
Repair" procedure.
▶ Substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected, replace
Wheel speed sensor and then go to "Verification of Vehicle Repair" procedure.
▶ If OK, Go to "Component Inspection" Procedure.
BR -92 BRAKE SYSTEM

COMPONENT INSPECTION E1F10357

1. Ignition "OFF".

2. Engine "ON".

3. Start and drive vehicle in gear and maintain vehicle speed is approx. 12 km/h or more(7 mph or more).

4. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by open or short of wheel speed sensor harness, faulty wheel speed sensor. Go to
the applicable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR ED7A9CBE

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes(DTCs)" mode

2. Using a scantool, Clear DTC.

3. Operate the vehicle within DTC Detecting Condition in General Information.(Start and drive vehicle in gear and main-
tain vehicle speed is approx. 12 km/h or more(7 mph or more))

4. Are any DTCs present ?

YES

▶ Go to the applicable troubleshooting procedure.

NO

▶ System performing to specification at this time.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -93

DTC C1202 FL WHEEL SPEED SENSOR-NO SIGNAL

DTC C1205 FR WHEEL SPEED SENSOR-NO SIGNAL
DTC C1208 RL WHEEL SPEED SENSOR-NO SIGNAL
DTC C1211 RR WHEEL SPEED SENSOR-NO SIGNAL

COMPONENT LOCATION E80D225F

Refer to DTC P1200.

GENERAL DESCRIPTION EF913A42

Refer to DTC P1200.

DTC DESCRIPTION ECA0C812

The ABS ECU monitors the wheel speed sensor signal continuously. This code is set when there is no wheel speed
signals within 10 ms to 20 ms at a vehicle speed ＞ 43.2 km/h or a deviation between sensors exceed the threshold or
one or two wheels are at 2.75 km/h while the vehicle speed is at 12 km/h. Warning lamp is turned OFF unless fault is
detected any more when the IG KEY is turned ON again, and wheel speed is more than 12 Km/h.

DTC DETECTING CONDITION EF5FFAA3

Item Detecting Condition Possible cause

DTC Strategy • Signal monitoring
• Continuous (only no under voltage
Monitoring Period
is not detected)
• If one (or two) wheel are at 2.75 km/h
and the other wheels are above 12
km/h for longer than 1s.
• During driving, when the vehicle accelerates
18 km/h after a particular wheel speed gets • Improper installation of
to 2.75 km/h and stays there. At that time, wheel speed sensor
If one (or two) wheel are at 2.75 km/h. • Abnormal Rotor and
Case1 - This monitoring is performed at the wheel bearing
following condition. • Faulty Wheel speed sensor
Enable Conditions
1) At the time the vehicle is accelerated • Faulty HECU
to 12 km/h
2) Once after energizing the system.
3) If the vehicle was stationary for
approx. 2 s.

• If one (or two) wheels are under 5 km/h

and the two fastest wheels have a velocity
above 12 km/h for more than 20 s.
BR -94 BRAKE SYSTEM

Item Detecting Condition Possible cause

• Continuous ( If vehicle speed ＞ 12 m/s)

- but this monitoring is disabled in
Monitoring Period the following event
1) aquaplaning.
2) interference.
3) supply voltage below 7.1 or above 18 Volts
Case2 • No wheel speed signals within 10 ms to 20
ms at a vehicle speed ＞ 12 m/s (43.2 km/h ).
- If the dynamic sensor monitor responses,
the failures will be stored into failure memory
Enable Conditions
immediately after a waiting period of 60 ms.
- If occurs low voltage active sensors during
the waiting period of 60 ms no failure is
stored in the EEPROM.
• Main Monitoring
The main monitor needs additional information
of the ESP-sensors and is active for a velocity
Monitoring Period
＞ 20 km/h and no under voltage is detected.
• Backup Monitoring
- Continuous
• Main Monitoring
1) If the maximum difference of wheel
speeds related to maximum wheel
speed exceeds 5 %.
2) detection filter time :
- the above conditions apply for 20 s for
1 defective wheel speed sensor.
Case3 - the above conditions apply for 40 s for
2 defective wheel speed sensor.

Enable Conditions • Backup Monitoring

1) If the deviation between the fastest
and the slowest wheel is below 6 %
related to the fastest wheel when the
velocity is higher than 50 km/h.
2) When the velocity is below 50 km/h, if the
deviation is an absolute value of 3 km/h.
3) detection filter time : normally 20 s
- In case of a detected curve, the
threshold is increased with an additional
value of 4 km/h.
Monitoring Period • Continuous

Case4 • The pulse width of wheel speed sensor

Enable Conditions is below 2 ms when vehicle speed is ＞
0km/h and ＜ 20 km/h.
Fail Safe Refer to DTC C1200.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -95

MONITOR SCANTOOL DATA EBEA2CFF

1. Engine "ON".

2. Connect scantool to Data Link Connector(DLC).

3. Start and drive vehicle in gear and maintain vehicle speed is approx. 50 km/h or more(31 mph or more)

4. Monitor the "Wheel speed sensor" parameter on the Scantool.

Specification : Approx. 50 km/h or more (31 mph or more)

Fig1 Fig2

Fig 1) Test Condition : Drive vehicle in 50 km/h or more. (31 mph or more) Normal Data
Fig 2) Test Condition : Drive vehicle in 50 km/h or more. (31 mph or more) Normal wave
EJBF501Q

5. Is parameter displayed within specifications?

YES

▶ Fault is intermittent caused by poor connection in wheel speed sensor harness and/or HECU’s connector or was
repaired and HECU memory was not cleared. Go to "Compont Inspection" procedure.

NO

▶ Check for improper installation of wheel speed sensor. If NG, repair as necessary and then go to "Verification of
vehicle Repair" procedure.
▶ Check for damage of rotor teeth or wheel bearing. If NG, repair as necessary and then go to "Verification of vehicle
Repair" procedure.
▶ Substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected, replace
Wheel speed sensor and then go to "Verification of Vehicle Repair" procedure.
▶ If OK, Go to "Component Inspection" Procedure.
BR -96 BRAKE SYSTEM

COMPONENT INSPECTION E4DB6AD9

1. Ignition "OFF".

2. Engine "ON".

3. Start and drive vehicle in gear and maintain vehicle speed is approx. 50 km/h or more(31 mph or more).

4. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by open or short of wheel speed sensor harness, faulty wheel speed sensor. Go to
the applicable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR E29A63CB

After a repair, it is essential to verify that the fault has been corrected.

1. Connect scantool and select "Diagnostic Trouble Codes(DTCs)" mode

2. Using a scantool, Clear DTC.

3. Operate the vehicle within DTC Detecting Condition in General Information.(Start and drive vehicle in gear and main-
tain vehicle speed is approx. 50 km/h or more(31 mph or more))

4. Are any DTCs present ?

YES

▶ Go to the applicable troubleshooting procedure.

NO

▶ System performing to specification at this time.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -97

DTC C1213 WHEEL SPEED FREQUENCY ERROR

COMPONENT LOCATION EC3A7F0F

Refer to DTC C1200.

GENERAL DESCRIPTION E7453BDA

Refer to DTC C1200.

DTC DESCRIPTION EDE27C3C

The ABS ECU monitors the wheel speed sensor signal continuously. This code is set, if the speed difference with adjacent
wheel is out of permissible range or the ABS control cycle is continued abnormally.

DTC DETECTING CONDITION ED9BCA2E

Item Detecting Condition Possible cause

DTC
• Signal motorning
Strategy
Monitoring
• Continous
Case 1 Period
Enable • When short cut between the wheel speed
Conditions sensor supply and the battery.
Fail Safe • Wheel speed sensor signals are not reliable. • Improper installation of wheel
speed sensor
DTC • Abnormal Rotor and wheel
• Signal motorning
Strategy bearing
Monitoring • Faulty Wheel speed sensor
• Continous • Faulty HECU
Period

Case 2 • The monitoring reports a failure if the ABS

target slip is exceeded for a time period ＞
Enable
= 10 s at one or more wheels.
Conditions
- If the driver brakes or the velocity is lower than
50 km/h the detection time is enlarged to 60 s.
Fail Safe • Reduced function of the ESP system
BR -98 BRAKE SYSTEM

MONITOR SCANTOOL DATA EE717FE3

1. Engine "ON".

2. Connect scantool to Data Link Connector(DLC).

3. Start and drive vehicle in gear and maintain vehicle speed is approx. 10 km/h or more(6 mph or more)

4. Monitor the "Wheel speed sensor" parameter on the Scantool.

Specification : Approx. 10 km/h or more (6 mph or more)

Fig1 Fig2

Fig 1) Test Condition : Drive vehicle in 10 km/h or more. (6 mph or more) Normal Data
Fig 2) Test Condition : Drive vehicle in 10 km/h or more. (6 mph or more) Normal wave

EJBF501K

5. Is parameter displayed within specifications?

YES

▶ Fault is intermittent caused by poor connection in wheel speed sensor harness and/or HECU’s connector or was
repaired and HECU memory was not cleared. Go to "Compont Inspection" procedure.

NO

▶ Check for improper installation of wheel speed sensor. If NG, repair as necessary and then go to "Verification of
vehicle Repair" procedure.
▶ Check for damage of rotor teeth or wheel bearing. If NG, repair as necessary and then go to "Verification of vehicle
Repair" procedure.
▶ Substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected, replace
Wheel speed sensor and then go to "Verification of Vehicle Repair" procedure.
▶ If OK, Go to "Component Inspection" Procedure.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -99

COMPONENT INSPECTION EDB92025

1. Ignition "OFF".

2. Engine "ON".

3. Start and drive vehicle in gear and maintain vehicle speed is approx. 10 km/h or more(6 mph or more).

4. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by open or short of wheel speed sensor harness, faulty wheel speed sensor. Go to
the applicable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR ECAD0AC0

Refer to DTC C1200.

BR -100 BRAKE SYSTEM

DTC C1235 PRESSURE SENSOR(PRIMARY)-ELECTRICAL

COMPONENT LOCATION EE7E2AD5

EJBF502R

GENERAL DESCRIPTION EDA0DBEF

The pressure sensor, installed in the HECU, sense the brake oil pressure to judge driver’s brake intention when ESP is
operating. If pressure of master cyclinder is applied to pressure sensor, the strain of the piezo element is changed and
then the resistance of brige circuit is chanded according to changed strain. Therefore this changed resistance changes
output voltage of brige circuit and output voltage changes linerly. The sensor output is a analog signal in proportion to
supply voltage, and the HECU recognizes a pressure value according to signal ratio about supply voltage.

DTC DESCRIPTION ED26004E

Each unfiltered input signal voltage is monitored to be in the range of 4.7 V ＜ input signal voltage ＜ 5.3 V. A failure
is detected if the output signal value is out of specified range for more than 100 ms or pressure sensor self test form is
against to specification during self test.

DTC DETECTING CONDITION EEB8D23F

Item Detecting Condition Possible cause

DTC Strategy • Voltage Monitoring
Monitoring
• Continuous
Period
Case 1 • A sensor supply failure is detected if Sensor
Enable
Supply Voltage ＞ 5.3 V or Sensor Supply • Open or short of pressure
Conditions
Voltage ＜ 4.7 V for t ＞= 60 ms. sensor circuit
• Faulty pressure sensor
Monitoring
• Continuous • Faulty HECU
Period

Case 2 • A Fault is set if the DSO signal is voltage

Enable of DSO ＞ 4.7 V or voltage of DSO ＜ 0.3V
Conditions for a time t ＞= 100 ms.
- DSO : original pressure value.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -101

Item Detecting Condition Possible cause

Monitoring
• Continuous
Period

Case 3 • A Fault is set if the DSI signal is voltage

Enable of DSI ＞ 4.7 V or voltage of DSI ＜ 0.3V
Conditions for a time t ＞= 100 ms.
- DSI : inverted pressure value.
Monitoring
• Continuous
Period
• A Fault is set if the voltage of DSO + DSI
Case 4 ＞ 5.5V or voltage of DSO + DSI ＜ 4.5V
Enable
for a time t ＞= 100ms.
Conditions
- DSO : original pressure value.
- DSI : inverted pressure value.
Monitoring
• Once during Power Up
Period
• POS detects internal sensor malfunctions
(sensor element, amplification, etc.). The POS is
triggered if no low voltage is present and supply
voltage is switched on. The test phase is divided
in two 60 ms parts. DSO signal must be ＜ 0.5
Case 5 V for 30 ms. In phase 2 DSO signal must be
Enable between 1.9V and 3.1V for also 30 ms then the
Conditions POS Test is passed. The test phase is divided
in two 60 ms parts. DSO and DSI signal must
be ＜ 0.5 V for 30 ms. In phase 2 DSO and DSI
signal must be between 1.9 V and 3.1 V for also
30 ms then the POS Test is passed. A fault is set
if POS does not satisfy the above conditions
- POS : Power on selftest.
• No Pressure Signal available..
• Sensor failure outside the ABS control cycle
- Only the ABS/ESP functions are inhibited,
allow the EBD. The ABS/ESP warning
lamps are activated and the EBD warning
Fail Safe lamp is not activated.
• Sensor failure inside the ABS control cycle
- Inhibit the ESP control, allow the EBD. The
ESP warning lamps are activated. After the
control, the ABS functions are inhibited. The
ABS warning lamps are activated.

MONITOR SCANTOOL DATA E88C440F

1. Connect scantool to Data Link Connector(DLC).

2. Ignition "ON" ＆ Engine "ON".

3. Press the brake pedal.

4. Monitor the "Pressure sensor" parameter on the Scantool.

Specification : Approx. 60 bar ~150 bar (There are difference in displayed parameter according to braking force)
BR -102 BRAKE SYSTEM

Fig1

Fig 1) Test Condition : Ignition "ON" & Engine "ON" Normal data (There are difference in displayed
parameter according to braking force)

EJBF502S

5. Whenever brake pedal is pushed down, is the pressure sensor’s scantool data changed?

YES

▶ Fault is caused by having been repaired and HECU memory was not cleared. Clear the DTC and then go to
"Verification of Vehicle Repair" procedure.

NO

▶ Go to "Component Inspection" procedure.

COMPONENT INSPECTION EFC0EAD9

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by open or short of wheel speed sensor harness, faulty wheel speed sensor. Go to
the applicable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR E39C8C6A

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -103

DTC C1237 PRESSURE SENSOR-OTHER

COMPONENT LOCATION EE789630

Refer to DTC C1235.

GENERAL DESCRIPTION E02E9666

Refer to DTC C1235.

DTC DESCRIPTION E637A8A1

With the driver torque demand and the lateral acceleration a driver braking demand is calculated. Unless the pump motor
is opreating or there is a brake signal, The offset compensation is executed. A failure is detected if offset value exceeded
±15 bar.

DTC DETECTING CONDITION E0A7CBD1

Item Detecting Condition Possible cause

DTC Strategy • Voltage Monitoring
• After Pressure sensor initialization.
Monitoring • No under voltage
Period • No pumps are running.
• No BLS-signal is set. • Open or short of pressure
sensor circuit
Enable • The pressure sensor-offset value must be in the range of ± • Faulty pressure sensor
Conditions 15 bar. A failure is detected if this range is exceeded. • Faulty HECU
• Reduced function caused by faulty pressure sensor signal.
• Sensor failure outside the ABS control cycle
Fail Safe
- Only the ABS/ESP functions are inhibited, allow the EBD.
The ABS/ESP warning lamps are activated and the EBD

MONITOR SCANTOOL DATA ECEAAC68

Refer to DTC C1235.

COMPONENT INSPECTION E9A5FA8E

Refer to DTC C1235.

VERIFICATION OF VEHICLE REPAIR E6ACE439

Refer to DTC C1101.

BR -104 BRAKE SYSTEM

DTC C1260 STEERING ANGLE SENSOR-SIGNAL

COMPONENT LOCATION EDDB308E

Steering angle sensor

Clock spring

EJBF502V

GENERAL DESCRIPTION ECBFF81F

The Steering angle sensor(SAS) is composed of main gear, serve gear1 and serve gear2 to determine the turning direc-
tion. The SAS is a CAN communication type sensor. If main gear is rotated according to the rotation of steering wheel
serve gear1 and serve gear2, which is contact with main gear, will be rotated. The HECU detects the absolute angle by
using magnetic MR effect and the difference gear ratio of each serve gear and then send to the CAN comunication line.
The HECU detects the steering wheel’s operating speed and operating angle by using absolute angle, and this signal is
used in a input signal of anti-roll control.

DTC DESCRIPTION E1CC7A4E

If the SAS signal is different from calculated value by yaw-rate sensor and wheel speed sensor, mechanically impossible
SAS signal is detected, there is a difference between SAS signal and driving condition of the vehicle calculated from
yaw-rate sensor and later G sensor, a failure is detected.

DTC DETECTING CONDITION E6EFD1D2

Item Detecting Condition Possible cause

DTC Strategy • Voltage Monitoring
Monitoring
• Continuous
Period
• During normal driving conditions the long
time filtered driving direction is straight ahead. • Open or short of steering
The long time filtered SAS-value is equivalent angle sensor circuit
Case 1 to the offset. If the offset value exceeds a • Faulty steering angle sensor
Enable threshold of approximately 15 deg a SAS-fault • Faulty HECU
Conditions is determined. Failure detection time depends
on the driving distance, vehicle speed and on
the amount of failed SAS signal. Within 30
km of symmetrical driving the calculated offset
corresponds to the sensor offset.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -105

Item Detecting Condition Possible cause

• Continous (If the following conditions are satisfied)
1) After SAS-initialization and vehicle
Monitoring reference speed ＞ 1.4 m/s
Period 2) No under voltage
3) At least one SAS-message was sent in
the current 20 ms-cycle.]
• A SAS-gradient-failure is set, if
1) Signal gradient (steering angle velocity)
from one 20 ms-cycle to another is
Case 2 higher than 40 or
2) Change of this gradient (steering angle
acceleration) is higher than 15 : | (LwInK0K1
Enable . LwInK1K2)| ＞ 15 and | (LwInK0K1
Conditions + LwInK1K2)| ＞ 15
- LwInK0K1 : Difference of the LWS-signal
between the current 20 ms-cycle and
the last 20 ms-cycle.
- LwInK1K2 : Difference of the LWS-signal
between the last 20 ms-cycle and 20
ms-cycle before.
Monitoring • Continuous (After initialization and no
Period under voltage detected)
Case 3
Enable • If value is higher than 665 + 90 tolerance for
Conditions more than 300 ms a fault is determined.
Monitoring
• Continuous (during driving)
Period
• Based on a vehicle model a reference SAS signal
is build. The difference between measured SAS
signal and SAS signal calculated from yaw-rate
sensor signal is evaluated for fault detection.
Dependent on the driving conditions failures in
size of [10 + 60 m/s / vehicle reference speed]
deg at steering angle are recognized within 400 ~
4800 ms through three possible recognition paths:
1) Curve Branch (lateral G ＞ 2 m/s² and
Case 4 left and right curve driving)
Enable
2) Stability Branch (no large wheel speed
Conditions
differences and stable acceleration)
3) Straight ahead Branch (lateral G ＜ 0.5
m/s² and yaw rate ＜ 2 deg/s).
The recognition time depends on the
active branch (the time is shorter in a
relation 1.:2.:3.-4:2:1) and the value of the
permissible time threshold dependent on
the deviation between the compared signals
(small deviation → long detection time, large
deviation → small detection time).
BR -106 BRAKE SYSTEM

Item Detecting Condition Possible cause

• Initialization once in every ignition cycle.
Monitoring • The monitoring is active until a reset by a
Period change in the SAS signal or until a right and
left cornering can be recognized.

Case 5 • If there is no change in the signal, but a right and

left cornering has been recognized, a fault is
Enable determined. (lateral G ＞ 2 m/s² in combination
Conditions with a yaw rate ＞ 6 /s in both directions).
- At a minimum change of e.g. 5 in the
signal, the monitoring is reset.
Monitoring
• Continuous (during driving)
Period

Case 6 • The measured yaw rate and the yaw rates,

Enable calculated from the wheel speed sensor and
Conditions SAS are compared. If the signals don’ t fit and
forwards driving is detected, a fault is determined.
Monitoring
• Continuous (during driving)
Period
• Under normal conditions, two SAS messages
Case 7 are sent in one 20 ms cycle, which is shown
Enable by an increase of the message counter by 2.
Conditions If the message counter shows an increase
higher than 3 or lower than 1 in one 20 ms-cyle,
a fault is stored after 160 ms.
• Reduced controller function caused by faulty
Fail Safe SAS signal. Allow the ABS/EBD control.
• The ESP warning lamp is activated.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -107

MONITOR SCANTOOL DATA ECB42EDA

1. Connect scantool to Data Link Connector(DLC).

2. Ignition "ON" ＆ Engine "ON".

3. Turn the steering wheel to the left or right.

4. Monitor the "steering sensor" parameters on the Scantool.

Fig1

Fig 1) Test Condition : Ignition "ON" & Engine "ON" Normal data (There are difference in displayed
Normal data
EJBF502W

5. Whenever steering wheel is turned, is the steering sensor’s scantool data changed?

YES

▶ Fault is intermittent caused by poor connection in steering sensor harness and/or HECU’s connector or was re-
paired and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending,
corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of
Vehicle Repair" procedure.

NO

▶ Go to "Component Inspection" procedure.

BR -108 BRAKE SYSTEM

COMPONENT INSPECTION EDD1E6FE

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good steering angle sensor and check for proper operation. If problem is corrected,
replace sensor and then go to "Verification of Vehicle Repair" procedure.
▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by caused by open or short of steering angle sensor harness, faulty steering angle
sensor.Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deteriora-
tion, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

VERIFICATION OF VEHICLE REPAIR E4FBDA50

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -109

DTC C1261 STEERING ANGLE SENSOR IS NOT CALIBRATED

COMPONENT LOCATION EE47B5CE

Refer to DTC C1260.

GENERAL DESCRIPTION E3FC32FC

Refer to DTC C1260.

DTC DESCRIPTION EAF4A85D

The SAS used for ESP control needs zero point adjustment because the SAS measures a absolute angle. zero point
adjustment is done by using the scantool device. If abnormal zero point adjustment is detected, a failure is reconized.

DTC DETECTING CONDITION E2D7930E

Item Detecting Condition Possible cause

DTC Strategy • Signal Monitoring
Monitoring
• During SAS zero point adjustment.
Period
• The position of steering wheel is out of specified • A fail of SAS zero point
Enable adjustment
range (straight positon, a max. error ±5 ) during
Conditions • Faulty HECU
SAS zero point adjustment.
• Reduced controller function caused by faulty SAS
Fail Safe signal. Allow the ABS/EBD control.
• The ESP warning lamp is activated.

MONITOR SCANTOOL DATA EBCEA199

1. Connect scantool to Data Link Connector(DLC).

2. Ignition "ON" ＆ Engine "ON".

3. Turn the steering wheel to the left or right until can’t turn the steering wheel any more.

4. Monitor the "steering sensor" parameters on the Scantool.

BR -110 BRAKE SYSTEM

Fig1 Fig2

Fig 1) Test Condition : Ignition "ON" & Engine "ON" Normal data (Right side)
Fig 2) Test Condition : Ignition "ON" & Engine "ON" Normal data (Left side)
EJBF503A

5. Is parameter displayed within specifications?

YES

▶ Fault is caused by having been repaired and HECU memory was not cleared. Clear the DTC and then go to
"Verification of Vehicle Repair" procedure.

NO

▶ Go to "Component Inspection" procedure.

COMPONENT INSPECTION EAE7F9BE

1. Line up wheels like (figure 1).

1) Perform the wheel alignment.

2) Line up the steering wheel in a straight.

3) Go ahead and Go back the vehicle 2~3 times without holding steering wheel.

2. Connect scantool to Data Link Connector(DLC).

3. Go in Anti-Rock brake system. (figure 2).

4. Perform steering angle sensor calibration. (figure 3).

5. Disconnect scantool.

6. Check the condition of SAS zero point adjustment by opreating the vehicle (turn right and left at least 1 time)
ABS (ANTI-LOCK BRAKE SYSTEM) BR -111

Fig1 Fig2 Fig3

EJBF503B

7. Is zero point adjustment completed?

YES

▶ Go to "Verification of Vehicle Repair" procedure.

NO

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

VERIFICATION OF VEHICLE REPAIR E6947F90

Refer to DTC C1101.

BR -112 BRAKE SYSTEM

DTC C1282 YAW RATE AND LATERAL G SENSOR-ELECTRICAL

COMPONENT LOCATION EABBFC68

EJBF503C

GENERAL DESCRIPTION E8CE77F9

Both the yaw-rate sensor and later G sensor is installed in lower floor. The yaw-rate sensor detecting the rotation angular
velocity calculates a difference with a target amount of turing, the lateral G sensor detecting slip of the vehicle compen-
sates a target amount of turning. Direction and magnitude of lateral G loaded to vehicle can be known with electrostatic
capacity changing according to lateral G. The output voltage of the lateral G sensor is 2.5 V when the vehicle is at a
standstill.

DTC DESCRIPTION E8A5633E

The HECU monitors a signal voltage of either yaw-rate sensor or later G sensor to detect open or short to battery or short
to ground. A failure is detected if the lateral acceleration sensor or yaw rate sensor signal voltage stays in the fault range
longer than the 100 ms or the lateral acceleration sensor or yaw rate sensor reference voltage stays in the fault range
longer than the 200 ms, or the self test form is against specification during self test.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -113

DTC DETECTING CONDITION EB32B515

Item Detecting Condition Possible cause

DTC
• Voltage Monitoring
Strategy
Monitoring
• Continous
Period

• A line fault is detected if V[LG] ＜ 0.3 V or V[LG]

Case 1
＞ 4.7 V for a time t ＞= 100ms.
Enable • A line fault is detected if V[YAW] ＜ 0.225 V OR
Conditions V[YAW] ＞ 4.774 V for a time t ＞= 100 ms.
• A line fault is detected if V[YAW REFERENCE]
＜ 2.1 V OR V[YAW REFERENCE] ＞ 2.9 • Faulty Yaw Rate ＆ Lateral
V for a time t ＞= 200 ms. G sensor
DTC • Open or short of Yaw Rate
• Selftest Monitoring ＆ Lateral G sensor
Strategy
• Faulty HECU
Monitoring
• Once after power up and no low voltage.
Case 2 Period

Enable • A line fault is detected if 0.2 V ＜ V[LG] ＜

Conditions 0.8 V isn’t continued for a time t ＞= 60 ms
during POS (POS : power on selftest)
• Reduced controller function.
• Inhibit the ESP control and allow the
Fail Safe
ABS/EBD control.
• The ESP warning lamps are activated..
BR -114 BRAKE SYSTEM

MONITOR SCANTOOL DATA E86FC6B0

1. Connect scantool to Data Link Connector(DLC).

2. Ignition "ON".

3. Monitor the "Yaw rate sensor-lateral ＆ Yaw rate sensor-yaw" parameter on the Scantool.

Specification : Lateral G sensor : ± 0 G, YAW rate Sensor : ± 0 deg/s

Fig1

Fig 1) Test Condition : Ignition "ON" & Engine "ON" Normal data (There are difference in displayed Normal data)

EJBF503J

4. Is parameter displayed within specifications?

YES

▶ Fault is intermittent caused by poor connection in Yaw Rate ＆ Lateral G sensor harness and/or HECU’s connector
or was repaired and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection,
bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verifi-
cation of Vehicle Repair" procedure.

NO

▶ Go to "W/Harness Inspection" procedure.

TERMINAL & CONNECTOR INSPECTION E0CFCB19

Refer to DTC C1102.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -115

POWER SUPPLY CIRCUIT INSPECTION EB5ECCFD

1. Ignition "ON" ＆ Engine "OFF".

2. Measure voltage between terminal "1" of the Yaw Rate ＆ Lateral G sensor harness connector and chassis ground.

Specification : Approx. B+

1. Battery +
3 2 1
2. Yaw-Rate self test line
3. Yaw-Rate reference line
6 5 4
4. Ground
5. Lateral G sensor signal
6. Yaw-Rate sensor signal

EJBF503E

3. Is the measured voltage within specifications?

YES

▶ Go to "Ground Circuit Inspection" procedure.

NO

▶ Check for open or short to GND in the Yaw Rate ＆ Lateral G sensor harness between terminal "1" of the Yaw Rate
＆ Lateral G sensor harness connector and battery +. Repair as necessary and then go to "Verification of vehicle
Repair" procedure.

GROUND CIRCUIT INSPECTION ED70016D

1. Ignition "OFF".

2. Disconnect Yaw Rate ＆ Lateral G sensor connector.

3. Measure resistance between terminal "4" of the Yaw Rate ＆ Lateral G sensor harness connector and chassis ground.

Specification : Approx. below 1Ω

1. Battery +
3 2 1 2. Yaw-Rate self test line
6 5 4 3. Yaw-Rate reference line
4. Ground
5. Lateral G sensor signal
6. Yaw-Rate sensor signal

EJBF503F
BR -116 BRAKE SYSTEM

4. Is the measured resistance within specifications?

YES

▶ Go to "Signal Circuit Inspection" procedure.

NO

▶ Check for open or short in the Yaw Rate ＆ Lateral G sensor harness between terminal "4" of the Yaw Rate ＆
Lateral G sensor harness connector and chassis ground. Repair as necessary and then go to "Verification of vehicle
Repair" procedure.

SIGNAL CIRCUIT INSPECTION E05CB621

1. Ignition "ON" ＆ Engine "OFF".

2. Measure voltage between terminal "3,5,6" of the Yaw Rate ＆ Lateral G sensor harness connector and chassis ground.

Specification : Approx. 2.5 V ( Voltage between terminal "5, 6" of the Yaw Rate ＆ Lateral G
sensor harness connector and chassis ground.)

1. Battery +
3 2 1
2. Yaw-Rate self test line
3. Yaw-Rate reference line
6 5 4
4. Ground
5. Lateral G sensor signal
6. Yaw-Rate sensor signal

EJBF503G

3. Is the measured resistance within specifications?

YES

▶ Go to "Self Test Circuit Inspection" procedure.

NO

▶ Check for open or short in the Yaw Rate ＆ Lateral G sensor harness between terminal "3, 5, 6" of the Yaw Rate ＆
Lateral G sensor harness connector and terminal "16, 18, 20" of thechassis ground. Repair as necessary and then
go to "Verification of vehicle Repair" procedure.
▶ If OK, Substitute with a known-good Yaw Rate ＆ Lateral G sensor and check for proper operation. If problem is
corrected, replace sensor and then go to "Verification of Vehicle Repair" procedure.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -117

SELF TEST CIRCUIT INSPECTION

1. Measure wave between terminal "2" of the Yaw Rate ＆ Lateral G sensor harness connector and chassis ground.

Specification : Approx. 0.2V ＜ Voltage ＜ 0.8V (during Ignition "ON")

1. Battery +
3 2 1 2. Yaw-Rate self test line
6 5 4 3. Yaw-Rate reference line
4. Ground
5. Lateral G sensor signal
6. Yaw-Rate sensor signal

EJBF503H

2. Is the measured wave within specifications?

YES

▶ Go to "Component Inspection" procedure.

NO

▶ Check for open or short to GND in the Yaw Rate ＆ Lateral G sensor harness between terminal "2" of the Yaw
Rate ＆ Lateral G sensor harness connector and terminal "37" of thechassis ground. Repair as necessary and then
go to "Verification of vehicle Repair" procedure.
▶ If OK, Substitute with a known-good Yaw Rate ＆ Lateral G sensor and check for proper operation. If problem is
corrected, replace sensor and then go to "Verification of Vehicle Repair" procedure.

COMPONENT INSPECTION EBFE6A33

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by poor connection in Yaw Rate & Lateral G sensor circuit and/or faulty Yaw Rate &
Lateral G sensor or was repaired and HECU memory was not cleared. Go to the applicable troubleshooting proce-
dure.

VERIFICATION OF VEHICLE REPAIR E51AEB95

Refer to DTC C1101.

BR -118 BRAKE SYSTEM

DTC C1283 YAW RATE AND LATERAL G SENSOR-SIGNAL

COMPONENT LOCATION E3E9BF06

Refer to DTC C1282.

GENERAL DESCRIPTION ECD88E2A

Refer to DTC C1282.

DTC DESCRIPTION EDFFFE46

A lateral acceleration reference signal is calculated from the wheel speeds, the steering angle and the yaw rate signals
to observe the lateral acceleration sensor signal. The difference between the reference signal and the sensor signal is
evaluated for failure detection. A yaw rate reference signal is calculated from the wheel speeds, the steering angle and
the lateral acceleration signals to observe the yaw rate sensor signal. The difference between the reference signal and
the sensor signal, and the gradient of the measured sensor signal is evaluated for the failure detection. If the difference
between estimated value and measured value of the sensor is larger than predefined value for predefined time, the failure
is recognized. Also impossible signal according to sensor characteristic is detected the failure is recognized.

DTC DETECTING CONDITION E8E91CBA

Item Detecting Condition Possible cause

DTC Strategy • Signal Monitoring
Monitoring
• Continuous (during stable driving)
Period
• By building a reference lateral G from the
yaw-rate sensor, wheel speed sensor and the
SAS it is possible to test the later G Signal on
plausibility. If during stable vehicle behavior an
later G Failure larger than approximately 2.5
m/s2 occurs, the ESP controller will disregard the
later G sensor information so that a false ESP • Faulty Yaw Rate ＆ Lateral
intervention is prevented. A fault is recognized G sensor
after 1.6 s during model validity. • Open or short of Yaw Rate
Case 1 ＆ Lateral G sensor
Enable • The measured and offset compensated yaw rate
Conditions signal is compared to the reference yaw rate • Faulty HECU
signal calculated from yaw rate sensor, later G
sensor, SAS and wheel speed sensor. If the
measured yaw rate deviates more than 2.5 /s
plus a dynamic threshold from the reference yaw
rate during model validity, a failure is recognized
after 1.6 s. The dynamic threshold is between
2.5 /s and more than 5 /s. A typical value is 3 /s.
- During the possibility to observe the recognition
time depends on the amount of failure.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -119

Item Detecting Condition Possible cause

Monitoring
• Continuous (during driving)
Period
• During normal driving conditions the long time
filtered driving direction is straight ahead. The
long time filtered later G value is equivalent to
Case 2 the offset. If the offset value exceeds a threshold
Enable of approximately 2.25 m/s² an later G fault is
Conditions determined.Failure detection time depends on
the driving distance, vehicle speed and on the
amount of failed later G signal. Within 30 km
of symmetrical driving the calculated offset
corresponds to the sensor offset.
Monitoring
• Continuous (If no under voltage is detected)
Period
Case 3
Enable • A fault is detected If the lateral G is higher
Conditions than 15 m/s² for more than 800 ms.
Monitoring
• Continuous (during standstill)
Period
Case 4
Enable • If the filtered value of |lateral G| is larger than 7
Conditions m/s² for more than 400 m/s a fault is set.
Monitoring
• Continuous (dependent on driving situation)
Period
• Standstill compensation :
- The offset corresponds to the measured and
filtered input value. Failure threshold 5.25 /s.
• Fast compensation (during driving if no standstill
compensation could be completed):
- The offset corresponds to the slightly filtered
deviation between measured yaw rate and
Case 5 the reference yaw rate calculated from SAS,
Enable later G sensor and wheel speed sensor.
Conditions Failure threshold is 7.5 /s.
• Long-term ("normal") compensation (during
driving after succeeded standstill or fast
offset compensation):
- The offset corresponds to the strong filtered
deviation between measured yaw rate and
the reference yaw rate calculated from SAS,
later G sensor and wheel speed sensor.
Failure threshold is 7.5 /s
Monitoring
• After every standstill.
Period
• The measured yaw rate and the model
Case 6 yaw rates, calculated from the wheel speed
Enable
sensor and SAS are compared. If the
Conditions
signals doesn.t fit and forward driving is
recognized, a fault is determined.
BR -120 BRAKE SYSTEM

Item Detecting Condition Possible cause

Monitoring • Continuous (after initialization of the YRS and
Period if no under voltage is detected)
• The yaw rate sensor BITE logic evaluates the
Case 7 BITE-signal by extraction of the measured yaw
Enable rate of the vehicle. The allowed range for the
Conditions BITE-signal is 25 /s ± 7 /s. If the BITE-signal is
not in the allowed range, a suspected failure bit is
set after 200 ms. A failure is set within 400 ms.
Monitoring
• After YRS-initialization, no under voltage
Period
• Depending on the driving conditions a signal
Case 8 gradient higher than 10 ~ 23 /s / 40 ms
Enable sets a suspected failure bit after 280 ms,
Conditions unless a single signal peak is recognized by a
peakfilter. A failure is set, if the good check is
not settled successfully after 10 s.
• Continuous (except spinning, use of
Monitoring
handbrake, unsteady driving conditions or
Period
a detected under voltage)
• During standstill
- The allowed range of the yaw rate sensor signal
is ±30 /s. Leaving this range for 5 s sets a
Case 9 fault. In case of driving off after the failure was
present for longer than 500 ms during standstill,
Enable
the fault is detected immediately.
Conditions
• While driving
- The allowed range of the yaw rate sensor
signal is ±94.75 /s and a suspected failure
bit is set, if the signal is out of this range for
500 ms. A fault is set after 1 s.
• Reduced controller function.
• Inhibit the ESP control and allow the
Fail Safe
ABS/EBD control.
• The ESP warning lamps are activated.

MONITOR SCANTOOL DATA E3AE3B8B

Refer to DTC C1282.

TERMINAL ＆ CONNECTOR INSPECTION E62DE558

Refer to DTC C1102.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -121

SIGNAL CIRCUIT INSPECTION EF2CE383

1. Ignition "ON" ＆ Engine "OFF".

2. Measure voltage between terminal "3, 5, 6" of the Yaw Rate ＆ Lateral G sensor harness connector and chassis
ground.

Specification : Approx. 2.5V ( Voltage between terminal "5,6" of the Yaw Rate & Lateral G
sensor harness connector and chassis ground.)
Specification : Approx. above 2.1V and below 2.9V ( Voltage between terminal "3" of the Yaw Rate
& Lateral G sensor harness connector and chassis ground.)

1. Battery +
3 2 1 2. Yaw-Rate self test line
6 5 4 3. Yaw-Rate reference line
4. Ground
5. Lateral G sensor signal
6. Yaw-Rate sensor signal

EJBF503K

3. Is the measured resistance within specifications?

YES

▶ Go to "Self Test Circuit Inspection" procedure.

NO

▶ Check for open or short in the Yaw Rate ＆ Lateral G sensor harness between terminal "3, 5, 6" of the Yaw Rate ＆
Lateral G sensor harness connector and terminal "16, 18, 20" of thechassis ground. Repair as necessary and then
go to "Verification of vehicle Repair" procedure.
▶ If OK, Substitute with a known-good Yaw Rate ＆ Lateral G sensor and check for proper operation. If problem is
corrected, replace sensor and then go to "Verification of Vehicle Repair" procedure.

COMPONENT INSPECTION E225EBB9

Refer to DTC C1282.

VERIFICATION OF VEHICLE REPAIR EFEA3166

Refer to DTC C1101.

BR -122 BRAKE SYSTEM

DTC C1503 TCS/ESP SWITCH ERROR

COMPONENT LOCATION EB26B31D

EJBF503L

GENERAL DESCRIPTION EFAA8DDD

Driver can inhibit the ESP control by ESP switch. When switch signal send into HECU, ESP warning lamp go ON and
ESP control is stopped and if next switch signal is inputted again, ESP control is ready. This function is used for sporty
driving or vehicle inspection.

DTC DESCRIPTION EE88B42D

Trouble code is set when the condition that the level of ESP switch is high is continued for 60sec.When the ESP switch
failure is set there is no signal in the warning lamp and HECU inhibit the ESP control and allow the ABS/EBD control.

DTC DETECTING CONDITION EDBC1FDC

Item Detecting Condition Possible cause

DTC Strategy • Short circuit monitoring
Monitoring
• Continuous
Period
Enable • Open or short ESP switch
• When the ESP switch is ON for 60 sec.
Conditions • Faulty ESP switch
• Inhibit the ESP control and allow the ABS/EBD
control. Meanwhile, stop checking the ESP switch
Fail Safe
failure under the ESP control.
• The ESP warning lamps are activated.

TERMINAL ＆ CONNECTOR INSPECTION E788FDE0

Refer to DTC C1102.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -123

POWER SUPPLY CIRCUIT INSPECTION E9432D16

1. Ignition "ON" ＆ Engine "OFF" ＆ ESP Switch"ON".

2. Measure voltage between terminal "31" of the HECU harness connector and chassis ground.

Specification : Approx B+

<E41>
31. ESP Switch

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

EJBF503M

3. Is the measured voltage within specifications?

YES

▶ Fault is intermittent caused by open or short in ESP switch line, faulty ESP switch or was repaired and HECU
memory was not cleared. Go to the applicable troubleshooting procedure.

NO

▶ Check for damaged harness and poor connection in the power harness between the battery terminal(+) and the
terminal "31" of the HECU harness connector . Check for open or blown 10 A fuse referring to "Circuit Diagram" .
Repair as necessary and then go to "Verification of vehicle Repair" procedure.
BR -124 BRAKE SYSTEM

COMPONENT INSPECTION E4F0AACF

1. Ignition "ON".

2. Disconnect ESP switch connector.

3. Press the ESP switch.

4. Measure resistance between terminal "3" of the ESP switch harness connector and terminal "4" of the ESP switch
harness connector.

Specification : Approx. below 1 Ω

M26

3. POWER SUPPLY
4. SIGNAL
2
5 4 3
*
*

Ω
EJBF503N

5. Is the measured resistance within specifications?

YES

▶ Fault is intermittent caused by faulty ESP switch or was repaired and HECU memory was not cleared. Go to the
applicable troubleshooting procedure.

NO

▶ Substitute with a known-good ESP switch and check for proper operation. If problem is corrected, replace ESP
switch and then go to "Verification of Vehicle Repair" procedure.

VERIFICATION OF VEHICLE REPAIR EF22263F

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -125

DTC C1513 BRAKE SWITCH ERROR

COMPONENT LOCATION EE2BA130

EJBF503P

GENERAL DESCRIPTION E63E2A27

The brake light switch indicates brake pedal status to the ABS control unit. The brake light switch which is dual switch type
send brake light signal to HECU. The switch is turned on when brake is depressed. The brake light switch runs to battery
voltage when brake depressed. but The brake light switch doesn’t run to battery voltage when brake is not depressed.
On the contrary, The brake switch is normally close type which doesn’t run to battery voltage when brake depressed.

DTC DESCRIPTION E73C23F8

The brake light signal is a reference to judge driver’s intention for braking and The HECU checks open or short circuit of
brake light switch for normal ABS/ESP control. If the brake light switch have an error, warning ramp will be turned ON.
BR -126 BRAKE SYSTEM

DTC DETECTING CONDITION EB2B4743

Item Detecting Condition Possible cause

DTC Strategy • Voltage monitoring
Monitoring • Continuous (only no under voltage is
Period not detected)

Case 1 • If the BLS-signals is high for 60 s, while the gas

Enable pedal is stepped, with vehicle speed ＞ 10.8
Conditions km/h, offset compensated pressure ＜ 5 bar
and no control is active, a fault is set.
Monitoring
• Continuous (only normal voltage)
Period
• For redundancy reasons an additional • Open circuit in brake
BLSpVor-signal is created by the pressure switch line
sensor signal. If the pressure sensor is • Faulty brake light switch
compensated, the threshold for generating the • Faulty HECU
Case 2 BLSpVor signal is 10 bar. If the pressure sensor
Enable
is not compensated, the threshold is increased
Conditions
by 15 bar. If this signal is set without any
hardware-BLS-signals being set for at least 1 s.
• If the pressure signal is higher than 80bar
and not both of the hardware-BLS are set,
a fault is stored after 1 s.
• Inhibit the ESP control and allow the
Fail Safe ABS/EBD control.
• The ESP warning lamps are activated.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -127

MONITOR SCANTOOL DATA EB9C87DE

1. Connect scantool to Data Link Connector(DLC).

2. Ignition "ON" ＆ Engine "ON"

3. Press the brake pedal.

4. Monitor the "STOP LAMP SWITCH" parameter on the scantool.

Specification : Lateral G sensor : ± 0 G, YAW rate Sensor : ± 0 deg/s

Fig1

Fig 1) Test Condition : Ignition "ON" & Engine "OFF" Normal data (There are difference in displayed Normal data

EJBF503Q

5. Whenever brake pedal is pushed down, is the brake switch’ s scantool data changed ON/OFF?

YES

▶ Fault is intermittent caused by poor connection in Yaw Rate & Lateral G sensor harness and/or HECU’ s connector
or was repaired and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection,
bending, corrosion, contamination.

NO

▶ Go to "W/Harness Inspection" procedure.

TERMINAL ＆ CONNECTOR INSPECTION EE815AB1

Refer to DTC C1102.

BR -128 BRAKE SYSTEM

SIGNAL CIRCUIT INSPECTION E62D5A31

1. Ignition "ON" ＆ Engine "OFF".

2. Press the brake pedal.

3. Measure voltage between the terminal "30" of the HECU harness connector and chassis ground.

Specification : Brake Switch - Approx. B+

<E41>
30. Brake switch

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

V
EJBF503R

4. Is the measured voltage within specifications?

YES

▶ Fault is intermittent caused by open or short harness in brake light switch, faulty brake lamp switch or was repaired
and HECU memory was not cleared. Go to the applicable troubleshooting procedure.

NO

▶ Check for open or blown 15 A STOP fuse referring to "Circuit Diagram" . Check for damaged harness and poor
connection in the power harness between the battery terminal(+) and the terminal "30" of the HECU harness con-
nector . Repair as necessary and then go to "Verification of vehicle Repair" procedure. If OK, Go to "Component
Inspection" Precedure.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -129

COMPONENT INSPECTION E6DE71EB

1. Connect a ohmmeter to the connector of brake light switch, and check whether or not there is continuity when the
plunger of the brake light switch is pushed in and when it is released. The switch is in good condition if there is no
continuity when the plunger is pushed

2. Is there no continuity when the plunger is pushed?

YES

▶ Fault is intermittent caused by open harness in brake light switch line, faulty brake lamp switch or was repaired
and HECU memory was not cleared. Go to the applicable troubleshooting procedure.

NO

▶ Substitute with a known-good brake lamp switch and check for proper operation. If problem is corrected, replace
brake light switch and then go to "Verification of Vehicle Repair" procedure.

Plunger

No continuity (3mm)
Continuity (4mm)

EJBF503S

VERIFICATION OF VEHICLE REPAIR E2EAD2A1

Refer to DTC C1101.

BR -130 BRAKE SYSTEM

DTC C1604 ECU HARDWARE ERROR

COMPONENT LOCATION EEC55059

Refer to DTC C1235.

GENERAL DESCRIPTION EECE64BA

The HECU is composed of a ECU (Electronic Control Unit ) and a HCU( Hydraulic Control Unit) , HCU is composed
of a source of hydraulic pressure and modulator valve block. Increase and decrease of hydraulic pressure is opreated
by electronic motor, According to a detected signal by wheel speed sensor, The hydraulic pressure which is needed for
control is supplied by pump. The HCU’ function which is composed of a accumulator, return pump, solenoid valve is to
increase, decrease or maintain the hydralic pressure supplied to a wheel cylinder by operating return pump according to
HECU control signal while ABS control.

DTC DESCRIPTION E29D2415

The HECU monitors the operation of the IC components such as memory, register, A/D converter and so on. The ECU
sets this code when the EEPROM data read by the master processor is different than prior data writed, or when the
master/slave processor detects abnormal operation in RAM, Status Register, Interrupt, Timer, A/D converter or cycle
time.

DTC DETECTING CONDITION EAEF89DD

Item Detecting Condition Possible cause

DTC Strategy • Internal monitoring
Monitoring
• Continuous
Period
Case 1 • If Internal control unit failures of the
Enable
master/slave processor or peripheral integrated
Conditions
circuits is detected.
Monitoring • Directly after ignition on, during reading
Period of EEPROM-values • Faulty HECU

• Failure is set if checksum not correct or

Case 2 PSW-EEPROM-Handler reported unknown
Enable
failure during EEPROM-value reading.
Conditions
• If EEPROM reading sequence take longer
then 3 s, a failure is set.
• The ABS/EBD/ESP functions are inhibited.
Fail Safe
• The ABS/EBD/ESP warning lamps are activated.

COMPONENT INSPECTION EB4DD94D

Refer to DTC C1101.

VERIFICATION OF VEHICLE REPAIR E372988D

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -131

DTC C1605 CAN HARDWARE ERROR

COMPONENT LOCATION E787A328

Refer to DTC C1235.

GENERAL DESCRIPTION E3A087FD

The HECU send requirement data, such as Torque reduction, the number of fuel cut cylinders, and TCS control requests,
to the Engine ECU ＆ TCU through CAN bus line. The Engine ECU performs fuel cut functions according to requests
from the HECU and retards ignition timing by torque reduction requests. The TCU maintains current gear positions during
TCS control time, in order not to increase power which causes a Kickdown shift.

DTC DESCRIPTION E13D6E59

The HECU checks the CAN control module for normal TCS control, and sets this code if CAN control module malfunction
is detected.

DTC DETECTING CONDITION EF54169A

Item Detecting Condition Possible cause

DTC Strategy • CAN control module monitoring
Monitoring
• Immediate during start up
Period
• Faults are detected immediately if the initialization
Enable • Faulty HECU
software can’t have write access to the configuration
Conditions
registers of the CAN-controller module.
• Inhibit the ESP control and allow the ABS/EBD
Fail Safe control. Meanwhile, stop checking the ESP switch
failure under the ESP control.

COMPONENT INSPECTION E74F2FFF

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to the appli-
cable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR E6E029F1

Refer to DTC C1101.

BR -132 BRAKE SYSTEM

DTC C1611 CAN TIME-OUT ECM

COMPONENT LOCATION EFD9C292

Refer to DTC C1235.

GENERAL DESCRIPTION E3F855B3

Refer to DTC C1605.

DTC DESCRIPTION EA039E6E

The HECU checks the CAN communcation lines for normal TCS control, and sets this code if an ECM message is not
received within predefined time.

DTC DETECTING CONDITION EF29EF2D

Item Detecting Condition Possible cause

DTC Strategy • CAN massage monitoring
Monitoring
• Continuous
Period
Enable • Faults are detected if ECM message was not received • Faulty ECM
Conditions on time by the CAN controller of HECU. • Faulty HECU

• Inhibit the ESP control and allow the ABS/EBD

Fail Safe control.Meanwhile, stop checking the ESP switch
failure under the ESP control.

COMPONENT INSPECTION E177AA95

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to the appli-
cable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR ECAFE361

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -133

DTC C1612 CAN TIME-OUT TCU

COMPONENT LOCATION E1CEEFBC

Refer to DTC C1235.

GENERAL DESCRIPTION EE0AE696

Refer to DTC C1605.

DTC DESCRIPTION E048421B

The HECU checks the CAN communcation lines for normal TCS control, and sets this code if an TCM message is not
received within predefined time.

DTC DETECTING CONDITION EABA82EB

Item Detecting Condition Possible cause

DTC Strategy • CAN control module monitoring
Monitoring
• Continuous
Period
Enable • Faults are detected if TCU message was not received • Faulty TCU
Conditions on time by the CAN controller of HECU. • Faulty HECU

• Inhibit the ESP control and allow the ABS/EBD

Fail Safe control.Meanwhile, stop checking the ESP switch
failure under the ESP control.

COMPONENT INSPECTION EE6C61D9

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to the appli-
cable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR E3FD38BB

Refer to DTC C1101.

BR -134 BRAKE SYSTEM

DTC C1616 CAN BUS OFF

COMPONENT LOCATION E0CC6A6E

Refer to DTC C1235.

GENERAL DESCRIPTION E8AAF29F

Refer to DTC C1605.

DTC DESCRIPTION E763D711

The HECU checks the CAN communication lines for normal TCS control, and sets this code if re-initialization is tried for
15 times in sequence without success.

DTC DETECTING CONDITION EF4502F8

Item Detecting Condition Possible cause

DTC Strategy • Open or short monitoring
Monitoring
• Continuous
Period
Enable • A CAN BUS off fault is established if re-initialization is • Open or short circuit in
Conditions tried for 15 times in sequence without success. CAN line

• Inhibit the ESP control and allow the ABS/EBD

Fail Safe control.Meanwhile, stop checking the ESP switch
failure under the ESP control.

TERMINAL ＆ CONNECTOR INSPECTION E28F8FBF

Refer to DTC C1102.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -135

SIGNAL CIRCUIT INSPECTION EAFB06D6

1. Ignition "OFF".

2. Measure resistance between terminal "14" of the HECU harness connector and terminal "35" of the HECU harness
connector.

Specification : Approx. 60 Ω

<E41>
<ESP>
14. CAN (LOW)
5 6 8 9 10 11 12 13 14 15 16 35. CAN (HIGH)
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *
<ABS>
15. CAN (LOW)
26. CAN (HIGH)

Ω
EJBF503Y

3. Is the measured resistance within specifications?

YES

▶ Fault is intermittent caused by open or short in CAN signal harnessor was repaired and HECU memory was not
cleared. Go to the applicable troubleshooting procedure.

NO

▶ Check for open or short in CAN signal harness between terminal "14" of the HECU harness connector and terminal
"35" of the HECU harness connector. Repair as necessary and then go to "Verification of vehicle Repair" procedure.

VERIFICATION OF VEHICLE REPAIR E4F211F4

Refer to DTC C1101.

BR -136 BRAKE SYSTEM

DTC C1623 CAN TIME-OUT STEERING ANGLE SENSOR

COMPONENT LOCATION E439DB4F

Refer to DTC C1235.

GENERAL DESCRIPTION EA0EAEB8

The Steering angle sensor(SAS) is composed of main gear, serve gear1 and serve gear2 to determine the turning direc-
tion. The SAS is a CAN communication type sensor. If main gear is rotated according to the rotation of steering wheel
serve gear1 and serve gear2, which is contact with main gear, will be rotated. The HECU detects the absolute angle by
using magnetic MR effect and the difference gear ratio of each serve gear and then send to the CAN comunication line.
The HECU detects the steering wheel’s operating speed and operating angle by using absolute angle, and this signal is
used in a input signal of anti-roll control.

DTC DESCRIPTION E86FFA4F

The HECU checks the CAN communcation lines for normal ESP control, and sets this code if an WAS message is not
received within predefined time.

DTC DETECTING CONDITION EF9F5986

Item Detecting Condition Possible cause

DTC Strategy • CAN massage monitoring
Monitoring
• Continuous
Period
Enable • Faults are detected if SAS message was not received • Faulty SAS
Conditions on time by the CAN controller of HECU. • Faulty HECU

• Inhibit the ESP control and allow the ABS/EBD control.

Fail Safe Meanwhile, stop checking the ESP switch failure
under the ESP control.

TERMINAL ＆ CONNECTOR INSPECTION E42CCC5E

Refer to DTC C1102.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -137

POWER SUPPLY CIRCUIT INSPECTION EA2DAB89

1. Ignition "ON".

2. Measure voltage between terminal "2" of the steering angle sensor harness connector and chassis ground.

Specification : Approx. B+

1. Steering Angle Sensor Ground

2. Steering Angle Sensor Supply
3. CAN Line (HIGH)
4 3 2 1 4. CAN Line (LOW)

EJBF504A

3. Is the measured voltage within specifications?

YES

▶ Go to "Ground Circuit Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between the battery terminal(+) and terminal "2" of the steering
angle sensor harness connector. Check for open or blown 10 A ABS fuse referring to "Circuit Diagram". Repair as
necessary and then go to "Verification of vehicle Repair" procedure.

GROUND CIRCUIT INSPECTION EAE101FA

1. Ignition "OFF".

2. Disconnect SAS connector.

3. Measure resistance between terminal "1" of the steering angle sensor harness connector and chassis ground.

Specification : Approx. below 1 Ω

1. Steering Angle Sensor Ground

2. Steering Angle Sensor Supply
3. CAN Line (HIGH)
4 3 2 1 4. CAN Line (LOW)

EJBF504B
BR -138 BRAKE SYSTEM

4. Is the measured resistance within specifications?

YES

▶ Go to "CAN Circuit Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between terminal "15" of the HECU harness connector and
terminal "1" of the steering angle sensor harness connector . Repair as necessary and then go to "Verification of
vehicle Repair" procedure.

CAN CIRCUIT INSPECTION

1. Ignition "OFF".

2. Disconnect SAS connector.

3. Measure resistance between terminal "3, 4" of the steering angle sensor harness connector.

Specification : Approx. 60 Ω

1. Steering Angle Sensor Ground

2. Steering Angle Sensor Supply
3. CAN Line (HIGH)
4. CAN Line (LOW)
4 3 2 1

Ω
EJBF504C

4. Is the measured resistance within specifications?

YES

▶ Check for improper installation of wheel speed sensor. If NG, repair as necessary and then go to "Verification of
vehicle Repair" procedure.
▶ If OK, Go to "Component Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between terminal "3, 4" of the steering angle sensor harness
connector. Repair as necessary and then go to "Verification of vehicle Repair" procedure.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -139

COMPONENT INSPECTION E67ABFFE

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good steering angle sensor and check for proper operation. If problem is corrected,
replace sensor and then go to "Verification of Vehicle Repair" procedure.
▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure

NO

▶ Fault is intermittent caused by poor connection in power harness (IGN+), faulty Alternator and/or faulty HECU or
was repaired and HECU memory was not cleared. Go to the applicable roubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR E92B3513

Refer to DTC C1101.

BR -140 BRAKE SYSTEM

DTC C1625 CAN TIME-OUT ABS/TCS/ESP

COMPONENT LOCATION E7AAAE47

Refer to DTC C1235.

GENERAL DESCRIPTION EE97EC4B

Refer to DTC C1605.

DTC DESCRIPTION EAAA2FEF

The HECU checks the CAN communcation lines for normal ESP control, and sets this code if an CAN message is not
transmitted within predefined time.

DTC DETECTING CONDITION ECA34A4E

Item Detecting Condition Possible cause

DTC Strategy • CAN massage monitoring
Monitoring
• Continuous
Period
Enable • Faults are detected if CAN message was not transmitted • Faulty HECU
Conditions on time by the CAN controller of HECU.
• Inhibit the ESP control and allow the ABS/EBD control.
Fail Safe Meanwhile, stop checking the ESP switch failure
under the ESP control.

COMPONENT INSPECTION EA0CE3BE

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to the appli-
cable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR E29BDF86

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -141

DTC C1626 IMPLAUSIBLE CONTROL

COMPONENT LOCATION ECF4A2AA

Refer to DTC C1235.

GENERAL DESCRIPTION EEF90EEE

The HECU send requirement data, such as Torque reduction, the number of fuel cut cylinders, and TCS control requests,
to the Engine ECU ＆ TCU through CAN bus line. The Engine ECU performs fuel cut functions according to requests
from the HECU and retards ignition timing by torque reduction requests. The TCU maintains current gear positions during
TCS control time, in order not to increase power which causes a Kickdown shift.

DTC DESCRIPTION E699DDBA

Under normal conditions, the inlet valves of all four wheels are not closed during control for longer than 1,28s or If the
controller requests pressure-hold or pressure-decrease for longer than 1,28s, a fault is detected. The ABS/ESP warning
ramp is turned ON and the EBD warning ramp is turned OFF.

DTC DETECTING CONDITION E0340516

Item Detecting Condition Possible cause

DTC Strategy • Signal monitoring
Monitoring
• Continuous
Period
Case 1 • If the controller requests pressure-hold or
Enable
pressure-decrease for longer than 1,28
Conditions
s, a fault is stored.

Monitoring • Continuous (at vehicle reference speed ＞ • Faulty HECU

Period 6 m/s, no detected under voltage and a
Case 2 fault is not already detected)
Enable • The monitoring reports a failure if continuous
Conditions ESP control occurs for a time period ＞= 10 s.
• The ABS/ESP functions are inhibited,
Fail Safe allow the EBD control.
• The ABS/ESP warning lamps are activated.

COMPONENT INSPECTION ED41C9BF

Refer to DTC C1101.

VERIFICATION OF VEHICLE REPAIR EFCC5FE6

Refer to DTC C1101.

BR -142 BRAKE SYSTEM

DTC C1702 VARIANT CODING ERROR

COMPONENT LOCATION E9831A4A

Refer to DTC C1235.

GENERAL DESCRIPTION E4D6DDBD

There is no hardware difference of the HECU according to the vehicle’s specification, just software is changed by the
vehicle parameter used for ESP control. The HECU stores a classified varient code value according to the received
data(a kind of engine, engine displacement, a kind of T/M). After then the HECU read a various parameter according to
the stored varient value in the memory to use for the ESP control.

DTC DESCRIPTION EB3A8460

The HECU checks the varient code after ignition. If a inappropriate varient code is detected or there is no varient code,
a fault is detected.

DTC DETECTING CONDITION ECFD5F3D

Item Detecting Condition Possible cause

DTC Strategy • Internal monitoring
Monitoring
• Once during startup.
Period
• During intialization, there is no inputed valid varient code. • Faulty HECU
• The EEPROM didn’ t have variant coed. • Replacement of EMS,
Enable
• Receieved variant code is invalid. T/M ECU
Conditions
• There is a difference between pre-inputted variant
code and re-inputted variant code.
• The ABS/EBD/ESP functions are inhibited.
Fail Safe
• The ABS/EBD/ESP warning lamps are activated.

MONITOR SCANTOOL DATA E946244A

VARIANT CODE

1. Check for improper installation of EMS/TCU/ESP.

2. Connect scantool to Data Link Connector(DLC).

3. Ignition "ON".

4. Go in Anti-Lock brake system (figure 1).

5. Perform variant code.

6. Disconnect scantool.

7. Ignition "OFF" and then ignition "ON". Go to "Component Inspection"Procedure.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -143

Fig1

Fig 1) Vehicle diagonosis : ANTI-LOCK brake system.

EJBF504G

COMPONENT INSPECTION ED3317EB

1. Ignition "OFF".

2. Engine "ON".

3. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to the appli-
cable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR E0AC52E7

Refer to DTC C1101.

BR -144 BRAKE SYSTEM

DTC C2112 VALVE RELAY ERROR

COMPONENT LOCATION E7ABDAD2

Refer to DTC C1235.

GENERAL DESCRIPTION EAE0DADA

The HECU supplies battery power to all solonid valves with a valve relay which is controlled by the Electronic Control
UNIT(ECU). The valve relay and all solenoid valves are installed inside the HECU ( Hydraulic and Electronic Control Unit
).

DTC DESCRIPTION E5CDCBE6

The HECU monitors voltage of the valve relay to check if the HECU can perform ABS control normally. When the valve
relay is switched to ON, the HECU will set this code if the solenoid drive voltage is below permissible voltage ranges for
a period of time. When the valve relay is switched to OFF, the HECU sets this code if the solenoid drive voltage is over
the permissible voltage range for a period of time.

DTC DETECTING CONDITION E3A50E1D

Item Detecting Condition Possible cause

DTC Strategy • Voltage monitoring
Monitoring
• Once during startup.
Period
• Watchdog and valve relay function is tested
Case 1 during startup.A failure is detected if the valve
Enable relay/Enable remains in off position when it
Conditions is turned on and vice versa. Reason could
be short to GND or UZ, interrupted lines or
a defective output stage etc.
Monitoring
• Continuous
Period
Case 2 • Open or short in power
Enable • A Fault is detected if valve relay voltage ＜ 0.8 supply circuit (IGN+)
Conditions * battery voltage for a time 500 ms.
Monitoring
• Continuous
Period
• If valve relay malfunction and supply solenoid
Case 3 valve short to battery or supply solenoid valve
Enable
and medium or high ohmic short of valve relay
Conditions
(or a valve) to valve relay voltage, solenoid
valve voltage or GND are detected.
• No valve actuation possible.
Fail Safe • The ABS/EBD/ESP functions are inhibited.
• The ABS/EBD/ESP warning lamps are activated.

TERMINAL ＆ CONNECTOR INSPECTION E342FD28

Refer to DTC C1102.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -145

POWER SUPPLY CIRCUIT INSPECTION EE1ABEE4

1. Ignition "OFF".

2. Disconnect HECU connector.

3. Ignition "ON".

4. Measure voltage between terminal "3" of the HECU harness connector and chassis ground.

Specification : Approx. B+

<E41>
3. Battery(+)

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

EJBF504I

5. Is the measured voltage within specifications?

YES

▶ Go to "Ground Circuit Inspection" procedure.

NO

▶ Check for damaged harness and open or short to GND between the battery terminal(+) and terminal "3" of the
HECU harness connector. Check for open or blown 20 A ABS fuse referring to "Circuit Diagram". Repair as necessary
and then go to "Verification of vehicle Repair" procedure.
BR -146 BRAKE SYSTEM

GROUND CIRCUIT INSPECTION E7A60B91

1. Ignition "OFF".

2. Disconnect HECU connector.

3. Measure resistance between terminal "4" of the HECU harness connector and chassis ground.

Specification : Approx. below 1 Ω

<E41>
4. Ground

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

EJBF504J

4. Is the measured resistance within specifications?

YES

▶ Go to "Component Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between terminal "4" of the HECU harness connector and chas-
sis ground. Repair as necessary and then go to "Verification of vehicle Repair" procedure.

COMPONENT INSPECTION E5EF4CDC

Refer to DTC C1101.

VERIFICATION OF VEHICLE REPAIR E9842ECE

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -147

DTC C2308 FL INLET VALVE MALFUNCTION

DTC C2316 FR INLET VALVE MALFUNCTION
DTC C2324 RL INLET VALVE MALFUNCTION
DTC C2332 RR INLET VALVE MALFUNCTION

COMPONENT LOCATION E2EDFE20

Refer to DTC C1235.

GENERAL DESCRIPTION E6A0CE75

The HECU is composed of a ECU (Electronic Control Unit ) and an HCU( Hydraulic Control Unit), so the HECU hardware
includes all solenoid valves inside the unit as well as the ECU. Solenoid valves are switched to ON, OFF by HECU when
the ABS is activated. Solenoid valves function is to increase, decrease or maintain the hydralic pressure supplied to a
wheel cylinder.

DTC DESCRIPTION EFA3E48E

The HECU monitors the operation of the valves by checking the drive circuit of the solenid valves, and then sets this code
when the unexpcted drive voltage is detected. For example, the HECU sets the DTC if the electrical feedback signal does
not match the actuation signal for the corresponding valve.
BR -148 BRAKE SYSTEM

DTC DETECTING CONDITION E4B5784B

Item Detecting Condition Possible cause

DTC Strategy • Voltage monitoring
Monitoring
• Continuous
Period
• The electrical feedback signal does not match
Case 1 the actuation signal for the corresponding
Enable
valve for more than 30 ms.
Conditions
- Current controlled valves and under voltage
conditions :detection time is 80 ms
• Immediately after power on
• every 20 s
Monitoring
- The Test is canceled if any control, valve
Period
actuation takes place or if the Vehicle is in
motion and the BLS is on.
• A Fault is found if UVR is not within
Case 2 0.1*battery voltage ＜ valve relay voltage
＜ 0.8*battery voltage
Enable • A Fault is found if valve relay voltage ≥
Conditions 0.2*battery voltage.
- After that all valves are switched on
sequential, valve relay voltage and valve
feedback is measured.
• The Valve and Pump motor Test is
Monitoring
performed once after ignition on if vehicle
Period • Faulty HECU
speed is ＞= 15 km/h.

Case 3 • The valve and pump motor test detects electrical

actuation malfunction of ABS valves. The test
Enable
actuates all valves in series (to detect short cuts
Conditions
or shunts between the valve lines). Faults are
detected if there is an error during the test.
• The drift test executes only once during an
ignition Cycle. The test is triggered if the
following conditions are fulfilled : 10min after
power up or end of control
Monitoring
1) No BLS is applied
Period
2) Brake pressure is ＜ 10 bar
Case 4 3) Vehicle speed ＞15 km/h
4) Vehicle acceleration ＞ 0.5 m/s²
5) Supply voltage ＞ 11 volts.
• The drift test is executed only once during an
Enable ignition Cycle.If it detects partly shorted valve
Conditions coils,almost defective coils or malfunction of
the valve driver, a failure is reconized.
• Valve cannot be actuated or valve is incorrectly
actuated. This may result in locked wheels
Fail Safe or wheels without pressure.
• ABS/EBD/ESP function is prohibited.
• ABS/EBD/ESP warning lamp is turned ON.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -149

MONITOR ACTUATION TEST EEF90251

1. Connect scantool to Data Link Connector(DLC)

2. Ignition "ON" ＆ Engine "OFF".

3. Select the "Actuation Test" mode on the scantool.

4. Inspect opearating status of inlet valve with Actuation Test.

Specification : It’s normal if operating sound is heard.

Fig1

Fig 1) Test Condition : Ignition "ON" & Engine "OFF"

Ex) Actuation Test on Front left valve(in)
EJBF504L

5. Does a inlet valve operate normally?

YES

▶ Fault is intermittent caused by faulty valve or was repaired and HECU memory was not cleared. Go to the pplicable
troubleshooting procedure.

NO

▶ Go to "Component Inspection" procedure.

BR -150 BRAKE SYSTEM

COMPONENT INSPECTION E04AD91C

1. Ignition "OFF".

2. Engine "ON".

3. Start and drive vehicle in gear and maintain vehicle speed is approx. 15 km/h or more(9 mph or more).

4. Does warning lamp remain On?

YES

▶ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification of Vehicle Repair" procedure.

NO

▶ Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to the appli-
cable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR EF8FAFBD

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -151

DTC C2312 FL OUTLET VALVE MALFUNCTION

DTC C2320 FR OUTLET VALVE MALFUNCTION
DTC C2328 RL OUTLET VALVE MALFUNCTION
DTC C2336 RR OUTLET VALVE MALFUNCTION

COMPONENT LOCATION E07DF69D

Refer to DTC C1235.

GENERAL DESCRIPTION EDA2E3B7

Refer to DTC C2308.

DTC DESCRIPTION EAA8CB86

Refer to DTC C2308.

DTC DETECTING CONDITION EEDA39AA

Refer to DTC C2308.

MONITOR ACTUATION TEST E7199AF4

1. Connect scantool to Data Link Connector(DLC)

2. Ignition "ON" ＆ Engine "OFF".

3. Select the "Actuation Test" mode on the scantool.

4. Inspect opearating status of inlet valve with Actuation Test.

Specification : It’ s normal if operating sound is heard.

Fig1

Fig 1) Test Condition : Ignition "ON" & Engine "OFF"

Ex) Actuation Test on Front left valve(out)
EJBF504N
BR -152 BRAKE SYSTEM

5. Does a inlet valve operate normally?

YES

▶ Fault is intermittent caused by faulty valve or was repaired and HECU memory was not cleared. Go to the pplicable
troubleshooting procedure.

NO

▶ Go to "Component Inspection" procedure.

COMPONENT INSPECTION E5968882

Refer to DTC C2308.

VERIFICATION OF VEHICLE REPAIR EF3EAA84

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -153

DTC C2366 TCS VALVE PRIMARY (USV1) ERROR

DTC C2370 TCS VALVE SECONDARY (USV2) ERROR
DTC C2372 ESP VALVE 1 (HSV1) ERROR
DTC C2374 ESP VALVE 2 (HSV2) ERROR

COMPONENT LOCATION EFC2F71C

Refer to DTC C1235.

GENERAL DESCRIPTION E1487F9A

The HECU is composed of a ECU (Electronic Control Unit ) and an HCU( Hydraulic Control Unit), so the HECU hardware
includes all solenoid valves inside the unit as well as the ECU. Solenoid valves are switched to ON, OFF by HECU when
the ABS is activated. Solenoid valves function is to increase, decrease or maintain the hydralic pressure supplied to a
wheel cylinder.

DTC DESCRIPTION EB893B66

The HECU monitors the operation of the valves by checking the drive circuit of the solenid valves, and then sets this code
when the unexpcted drive voltage is detected. For example, the HECU sets the DTC if the electrical feedback signal does
not match the actuation signal for the corresponding valve.

DTC DETECTING CONDITION EA4BCA75

Item Detecting Condition Possible cause

DTC Strategy • Voltage monitoring
Monitoring • Once after ignition on at standstill if the BLS is off
Period • At vehicle speed ≥ 15 km/h if the BLS is on.
Case 1 • The test actuates all valves in series to detect
Enable
shorts or shunts between the valve lines. Faults
Conditions
are detected if there is an error during the test.
• The drift test executes only once during an
ignition Cycle. The test is triggered if the
following conditions are fulfilled : 10 min after
power up or end of control
Monitoring
1) No BLS is applied
Period
2) Brake pressure is ＜ 10 bar • Faulty HECU
Case 2 3) Vehicle speed ＞15 km/h
4) Vehicle acceleration ＞ 0.5 m/s²
5) Supply voltage ＞ 11 volts.
• The drift test is executed only once during an
Enable ignition Cycle.If it detects partly shorted valve
Conditions coils,almost defective coils or malfunction of the
valve driver, a failure is reconized.
• Valve cannot be actuated or valve is incorrectly
actuated. This may result in locked wheels
Fail Safe or wheels without pressure.
• ABS/EBD/ESP function is prohibited.
• ABS/EBD/ESP warning lamp is turned ON.
BR -154 BRAKE SYSTEM

MONITOR ACTUATION TEST EF242E85

1. Connect scantool to Data Link Connector(DLC)

2. Ignition "ON" ＆ Engine "OFF".

3. Select the "Actuation Test" mode on the scantool.

4. Inspect opearating status of inlet valve with Actuation Test.

Specification : It’ s normal if operating sound is heard.

Fig1 Fig2

Fig 1) Test Condition : Ignition "ON" & Engine "OFF" Fig 2) Test Condition : Ignition "ON" & Engine "OFF"
Ex) Actuation Test on TCS(USV) valve #1 Ex) Actuation Test on ESP(HSV) valve #1
EJBF505B

5. Does a inlet valve operate normally?

YES

▶ Fault is intermittent caused by faulty valve or was repaired and HECU memory was not cleared. Go to the pplicable
troubleshooting procedure.

NO

▶ Go to "Component Inspection" procedure.

COMPONENT INSPECTION EDEB0B36

Refer to DTC C2308.

VERIFICATION OF VEHICLE REPAIR E99F31B5

Refer to DTC C1101.

ABS (ANTI-LOCK BRAKE SYSTEM) BR -155

DTC C2402 MOTOR-ELECTRICAL

COMPONENT LOCATION ECF27E4C

Refer to DTC C1235.

GENERAL DESCRIPTION E2E7EBCC

The HECU supplies battery power to the electric motor with a motor relay which is controlled by the Electronic Control
Unit(ECU). The electric motor pump supplies hydraulic pressure to all wheel brake calipers by operating the piston inside
the pump.

DTC DESCRIPTION E0E3A242

The HECU monitors the pump motor relay or fuse open, open or short in motor or motor lock and then sets this code if a
malfunction is detected. Warning lamp is turned OFF unless fault is detected any more when the IG KEY is turned ON
again, and wheel speed is more than 15 km/h.
BR -156 BRAKE SYSTEM

DTC DETECTING CONDITION EC3B2B48

Item Detecting Condition Possible cause

DTC Strategy • Voltage monitoring
Monitoring • Stop monitor is active if the pump is off i.e.
Period not actuation and no Slowdown.
Enable • A failure is detected if the pump motor voltage
Case1 Conditions ＞ 2.0 V for more than 1 s.
(Stop
• The return pump does not work correct.
monitor)
• The ABS/ESP functions are inhibited, reduced
Fail Safe function of the EBD system.
• The ABS/EBD/ESP warning lamps
are activated.
Monitoring
• The monitor is active if the pump is switched on
Period
Enable • A failure is detected if the pump motor voltage
Conditions ＜ (battery voltage - 4.0 V) for more than 100ms.
Case2
(Pump run • Pressure decrease (outlet valve) is no
monitor) longer possible.
• The ABS/ESP functions are inhibited, reduced
Fail Safe
function of the EBD system.
• The ABS/EBD/ESP warning lamps
are activated.
Monitoring • Monitor is always active in the transition • Open or short of power
Period "pump on → pump off" supply circuit (ABS1)
• After the end of the actuation of the motor • Faulty HECU
relay has, the pump motor is still in motion
and is generating a Voltage during it.s
slowdown. The generated UM is monitored
for a certain time on high level.
The time depends on the supply voltage and
is in the range of t = 30 ms to t = 125 ms.If
the slow down condition isn.t met, the pump
Enable is activated again (see actuation times below)
Case3 Conditions and the slowdown time is measured again. This
(Pump is repeated for maximum n = 3 times.
slowdown If, after the last pump activation, the pump
monitor) motor slowdown time is still to short,
a failure is detected.
Actuation times:
1st actuation: 200 ms
2nd actuation: 1000 ms
3rd actuation: 3000 ms
• Pressure decrease (outlet valve) is no
longer possible.
• The ABS/ESP functions are inhibited, reduced
Fail Safe
function of the EBD system.
• The ABS/EBD/ESP warning lamps
are activated.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -157

MONITOR ACTUATION TEST EA6AF371

1. Connect scantool to Data Link Connector(DLC)

2. Ignition "ON" ＆ Engine "OFF".

3. Select the "Actuation Test" mode on the scantool.

4. Inspect opearating status of inlet valve with Actuation Test.

Specification : It’s normal if operating sound is heard.

Fig1

Fig 1) Test Condition : Ignition "ON" & Engine "OFF"

Ex) Actuation Test on motor
EJBF505J

5. Does a inlet valve operate normally?

YES

▶ Fault is intermittent caused by faulty valve or was repaired and HECU memory was not cleared. Go to the pplicable
troubleshooting procedure.

NO

▶ Go to "Component Inspection" procedure.

TERMINAL & CONNECTOR INSPECTION E5F5C0DD

Refer to DTC C1102.

BR -158 BRAKE SYSTEM

POWER SUPPLY CIRCUIT INSPECTION E4BC141A

1. Ignition "OFF".

2. Disconnect HECU connector.

3. Ignition "ON".

4. Measure voltage between terminal "2" of the HECU harness connector and chassis ground.

Specification : Approx. B+

<E41>
2. Battery(+)

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

EJBF505K

5. Is the measured voltage within specifications?

YES

▶ Go to "Ground Circuit Inspection" procedure.

NO

▶ Check for damaged harness and open or short to GND between the battery terminal(+) and terminal "2" of the
HECU harness connector. Check for open or blown 40A ABS fuse referring to "Circuit Diagram". Repair as necessary
and then go to "Verification of vehicle Repair" procedure.
ABS (ANTI-LOCK BRAKE SYSTEM) BR -159

GROUND CIRCUIT INSPECTION E88A059B

1. Ignition "OFF".

2. Disconnect HECU connector.

3. Measure resistance between terminal "1" of the HECU harness connector and chassis ground.

Specification : Approx. below 1 Ω

<E41>
1. Ground

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

EJBF505L

4. Is the measured resistance within specifications?

YES

▶ Go to "Component Inspection" procedure.

NO

▶ Check for damaged harness and poor connection between terminal "1" of the HECU harness connectorand chas-
sis ground. Repair as necessary and then go to "Verification of vehicle Repair" procedure.

COMPONENT INSPECTION E925A7D1

Refer to DTC C2308.

VERIFICATION OF VEHICLE REPAIR EAD700FD

Refer to DTC C1101.

BR -160 BRAKE SYSTEM

ANTI-LOCK BRAKING SYSTEM

CONTROL MODULE

COMPONENTS E02FD3A6

10

1 2 3
4

17~26
7 (1.7~2.6, 12.3~18.8)

6
5

6~10(0.6~1, 4.34~7.23)

TORQUE : Nm (kgf m, lb-ft)

1. Front-right tube 6. MC1
2. Rear-left tube 7. ABS control module connector(26P)
3. Rear-right tube 8. ABS control module(HECU)
4. Front-left tube 9. Damper
5. MC2 10. Bracket
EJBF500Z
ABS (ANTI-LOCK BRAKE SYSTEM) BR -161

REMOVAL E93F3ECB 4. Remove the two HECU brake mounting bolts(B) , and
then disassemble the HECU with the bracket.
1. Remove the air cleaner. (Reger to ’Master cylinder
Removal’) CAUTION
2. Disconnect the brake tube from the HECU by unlock- 1. Never attempt to disassemble the HECU.
ing the nuts counterclockwise with a spanner. 2. The HECU must be transported and stored in
3. Never shock to the HECU.

5. Remove the two HECU mounting nuts and washer,

and then remove the bracket.

INSTALLATION E976137A

1. Installation is the reverse of removal.

2. Tighten the HECU mounting bolts and brake tube nuts

to the specified torque.

Tighterning torque
HECU mounting nut :
6~10 Nm (0.6~1 kgf·m, 4.34~7.23 Ib-ft)
KJRE502T HECU bracket mounting bolt:
17~26 Nm (1.7~2.6 kgf·m, 12.3~18.8 Ib-ft)
3. Disconnect the connector(A) from the HECU.

B
KJBF502K
BR -162 BRAKE SYSTEM

FRONT WHEEL SPEED SENSOR

COMPONENTS E810AEE9

1. Front wheel speed sensor connector

2. Front wheel speed sensor

EJBF502L
ABS (ANTI-LOCK BRAKE SYSTEM) BR -163

REMOVAL EBED7949 INSPECTION E9BCD8AA

1. Remove the front wheel speed sensor mounting 1. Measure the output voltage between the terminal of
bolt(A). the wheel speed sensor and the body ground.

A CAUTION
In order to protect the wheel speed sensor, when
measuring output voltage, a 75Ω resistor must be
B used as shown.

Power

DC 12V Ground
Wheel sensor
Vin
Vout

R(75Ω)
KJBF534A

Tone wheel
2. Remove the two wire bracket bolts(A).
Oscilloscope

EJRF501Z

2. Compare the change of the output voltage of the

wheel speed sensor to the normal change of the
A output voltage as shown below.

EJBF500S
Vhigh
3. Remove the front wheel guard.

4. Remove the front wheel speed sensor after discon-

necting the wheel speed sensor connector(A). Vlow

A 0V
t

KJQE260B

• V_low : 0.44 V ~ 0.63 V

• V_high : 0.885 V ~ 1.26 V
• Frequency range : 1~2,500 Hz

KJBF532A
BR -164 BRAKE SYSTEM

REAR WHEEL SPEED SENSOR

COMPONENTS EE75F6B4

1. Rear wheel speed sensor connector

2. Rear wheel speed sensor

EJBF500T
ABS (ANTI-LOCK BRAKE SYSTEM) BR -165

REMOVAL EEF61CCE INSPECTION EFD3016E

1. Remove the rear wheel speed sensor mounting 1. Measure the output voltage between the terminal of
bolt(A). the wheel speed sensor and the body ground.

CAUTION
In order to protect the wheel speed sensor, when
measuring output voltage, a 75Ω resistor must be
used as shown.

A Power

DC 12V Ground
Wheel sensor
Vin
Vout

R(75Ω)
KJRE503W

Tone wheel
2. Remove the rear seat side pad then disconnect the
rear wheel speed sensor connector(A).
Oscilloscope

EJRF501Z

2. Compare the change of the output voltage of the

wheel speed sensor to the normal change of the
A output voltage as shown below.

KJBF517A Vhigh

Vlow

0V
t

KJQE260B

• V_low : 0.44 V ~ 0.63 V

• V_high : 0.885 V ~ 1.26 V
• Frequency range : 1~2,500 Hz
BR -166 BRAKE SYSTEM

EBD (ELECTRONIC The proportioning valve, because of a mechanical device,

has limitations to achieve an ideal brake force distribu-
BRAKE-FORCE tion tothe rear wheels as well as to carry out the flexible
DISTRIBUTION) brake force distribution proportioning to the vehicle load
or weight increasing. And in the event of malfunctioning,
driver cannot notice whether it fails or not.
DESCRIPTION E3DD0C34

EBD controlled by the ABS Control Module, calculates the

The EBD system (Electronic Brake force Distribution) as slip ratio of each wheel at all times and controls the brake
a sub-system of the ABS system is to control the effective pressure of the rear wheels not to exceed that of the front
adhesion utilization by the rear wheels. wheels.

It further utilizes the efficiency of highly developed ABS If the EBD fails, the EBD warning lamp (Parking brake
equipment by controlling the slip of the rear wheels in the lamp) lights up.
partial braking range.
ADVANTAGES
The brake force is moved even closer to the optimum and
controlled electronically, thus dispensing with the need for - Function improvement of the base-brake system.
the proportioning valve. - Compensation for the different friction coefficients.
- Elimination of the proportioning valve.
- Failure recognition by the warning lamp.

COMPARISON BETWEEN PROPORTIONING VALVE AND EBD

[With P-Valve] [With EBD]

Rear pressure
Rear pressure

Fixed distribution

Ideal distribution Ideal distribution

Cut-in point EBD starting point

Front pressure Front pressure

EJA0032A
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -167

ESP(ELECTRONIC and acceleration and, thus, mainly intervenes in the longi-

tudinal dynamics of the vehicle, active yaw control stabi-
STABILITY PROGRAM) lizes the vehicle about its vertical axis.
SYSTEM This is achieved by wheel individual brake intervention and
adaptation of the momentary engine torque with no need
DESCRIPTION OF ESP E7575EF0 for any action to be taken by the driver.

Optimum driving safety now has a name : ESP, the Elec- ESC essentially consists of three assemblies : the sen-
tronic Stability Control. sors, the electronic control unit and the actuators.

ESP recognizes critical driving conditions, such as panic Of course, the stability control feature works under all driv-
reactions in dangerous situations, and stabilizes the ve- ing and operating conditions. Under certain driving condi-
hicle by wheel-individual braking and engine control in- tions, the ABS/TCS function can be activated simultane-
tervention with no needfor actuating the brake or the gas ously with the ESP function in response to a command by
pedal. the driver.

ESP adds a further function known as Active Yaw Control In the event of a failure of the stability control function, the
(AYC) to the ABS, TCS, EBD and ESP functions. Whereas basic safety function, ABS, is still maintained.
the ABS/TCS function controls wheel slip during braking

Driving force control

E E
ESP ESP
S S
Drift-out Yaw-moment
P P
Control Control

Brake force control

LJCD201A
BR -168 BRAKE SYSTEM

DESCRIPTION OF ESP CONTROL

AYC function prevents unstable maneuver of the vehicle.
ESP system includes ABS/EBD, TCS and AYC function. To determine the vehicle maneuver, AYC function uses the
maneuver sensor signals(Yaw Rate Sensor, Lateral Accel-
ABS/EBD function The ECU changes the active sensor eration Sensor, Steering Wheel Angle Sensor).If vehicle
signal (current shift) coming from the four wheel sensors maneuver is unstable (Over Steer or Under Steer), AYC
to the square wave.By using the input of above signals, function applies the brake pressure on certain wheel, and
the ECU calculates the vehicle speed and the acceleration send engine torque reduction signal by CAN.
＆ deceleration of the four wheels.And, the ECU judges
whether the ABS/EBD should be actuated or not. After the key-on, the ECU continually diagnoses the
system failure. (self-diagnosis)If the system failure is
TCS function prevents the wheel slip of drive direction by detected, the ECU informs driver of the system failure
adding the brake pressure and engine torque reduction via through the BRAKE/ABS/ESP warning lamp. (fail-safe
CAN communication.TCS function uses the wheel speed warning)
sensor signal to determine the wheel slip as far as ABS
function.

Master cylinder
Pressure sensor
Steering wheel
Angle sensor
Master
cylinder

ESP Yaw-rate &

Wheel speed HECU Wheel speed
lateral acceleration
sensor sensor
sensor

EJRF502K
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -169

VARIANT CODING stores variant code (data of engine, displacement volume

, T/M) at the ECU memory. Since then an ESP uses the
A hardware difference of ECU does not exist according stored data.
to the specification of the vehicle, but a software changes
according to deference of vehicle parameter. The ESP

KJRE500L

*PROCEDURE 5. Select the variant coding.

1. Install a EMS/TCU/ESP normally.

1. HYUNDAI VEHICLE DIAGNOSIS
2. Connect the hi-scan (pro) to the data link connector MODEL : SONATA 05-
located underneath the dash panel. SYSTEM : ANTI - LOCK BRAKE SYSTEM

04. ACTUATION TEST

05. SIMU - SCAN
06. AIR BLEEDING MODE
07. SOLENOID VALVES TEST
08. IDENTIFICATION CHECK
09. STEERING ANGLE SENSOR
10. VARIANT CODING
11. DATA SETUP(UNIT CONV.)

EJRF703H

EJBF500R

3. Select vehicle name.

4. Select ANTI-LOCK BRAKE SYSTEM.

BR -170 BRAKE SYSTEM

6. Follow the next procedure according to the comment 9. IGN off.

.
10. IGN on.
1. 10 .VARIANT CODING
11. The variant coding is completed.

* THIS
AIM
FUNCTION RESET VARIANT CODE CAUTION
AND INPUT THE NEW ONE IN EST. If the warning lamp(ESP, EBD, ABS) is lighted up,
PERFORM THIS FUNCTION WHEN YOU follow the "Variant coding" again.
REPLACE USED ESP FROM OTHER
VEHICLE OR OCCUR C1702 WITH
MIL ON.(ESP/EBD/ABS)

IF YOU READY, PRESS [ENTER] KEY.

EJBF505O

7. Confirm the condition , and then push the "REST".

1. 10 .VARIANT CODING

VARIANT CODING

IG. KEY ON
CONDITION
ENGINE STOP

PRESS [REST], IF YOU ARE READY !

REST

EJRF703J

8. If the procedure is finished , the below screen is dis-

played .

1.10 . VARIANT CODING

VARIANT CODING

IG KEY ON
C CALIBRATION COMPLETION!

TURN IG.KEY OFF AND ON 2TIMES.

PRESS [REST], IF YOU ARE READY !

REST

EJRF703K
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -171

INPUT AND OUTPUT DIAGRAM

Input ESP HECU Output

Active Wheel
speed sensor Hydraulic unit
(FL) -Intergrated with HECU
Active Wheel
speed sensor
(FR)

Active Wheel
ESP Control
speed sensor
Warning Lamp
(RL)
(ABS, EBD, ESP)
Active Wheel
speed sensor
(RR)
ABS Control
Steering Wheel Diagnosis
Angle sensor K-Line

Yaw-rate & Lateral TCS Control

Function Lamp
Acceleration sensor
(ESP)

Master cylinder
pressure sensor
Primary
Secondary Wheel speed
sensor output

Brake switch

CAN ECU
ESP OFF switch
TCU

EJRF502N
BR -172 BRAKE SYSTEM

ESP OPERATION MODE E0CBEBB5

1. STEP 1
The ESP analyzes the intention of the driver.

Position of steering wheel

+ Vehicle speed ECU decides the intention of the driver.
+ Acceleration pedal

EJRF502B

2. STEP 2
It analyzes the movement of the ESP vehicle.

Vehicle rotation speed

ECU decides movement of the ESP vehicle.
+ Operated power to the side

EJRF502C

3. STEP 3
It controls a vehicle posture control through the ESP
braking power.
• The ECU calculates the needed countermea-
sure.
• The hydraulic unit controls Independently the
braking power of each wheel.
• The ESP adjusts engine output through an en-
gine and communication line to be connected.
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -173

ESP OPERATION MODE

1. ESP Non-operation-Normal braking.

High pressure
Inlet valve(EV) Outlet valve(AV) Pilot valve(USV) switch Pump motor
valve(HSV)
Normal braking Open Close Open Close OFF

MC2 MC1
UP

HSV2 USV2 USV1 HSV1

sRP2 sRP1
M

LREV RFEV LFEV RREV

RVR2 RVR1
A2 A1

RFAV RRAV

LRAV LFAV

LR RF LF RR

EJRF703R

NOTE
EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
USV : Pilot Valve
HSV : High pressure Switch Valve
BR -174 BRAKE SYSTEM

2. ESP INCREASE MODE

High pressure
Inlet valve(EV) Outlet valve(AV) Pilot valve(USV) switch Pump motor
valve(HSV)
ON(Motor speed
Normal braking Open Close Close(Partial) Open
control)

MC2 MC1
UP

HSV2 USV2 USV1 HSV1

sRP2 sRP1
M

LREV RFEV LFEV RREV

RVR2 RVR1
A2 A1

RFAV RRAV

LRAV LFAV

LR RF LF RR

EJRF703S

NOTE
EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
USV : Pilot Valve
HSV : High pressure Switch Valve
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -175

3. ESP HOLD MODE ( FR is only controlled.)

High pressure
Inlet valve(EV) Outlet valve(AV) Pilot valve(USV) switch Pump motor
valve(HSV)
ON(Motor speed
Normal braking Close Close Close(Partial) Open
low control)

MC2 MC1

UP

HSV2 USV2 USV1 HSV1

sRP2 sRP1
M

LREV RFEV LFEV RREV

RVR2 RVR1
A2 A1

RFAV RRAV

LRAV LFAV

LR RF LF RR

KJRE501N

NOTE
EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
USV : Pilot Valve
HSV : High pressure Switch Valve
BR -176 BRAKE SYSTEM

4. ESP DECREASE MODE (FR is only controlled)

High pressure
Inlet valve(EV) Outlet valve(AV) Pilot valve(USV) switch Pump motor
valve(HSV)
ON(Motor speed
Normal braking Close Open Close(Partial) Open
low control)

MC2 MC1
UP

HSV2 USV2 USV1 HSV1

sRP2 sRP1
M

LREV RFEV LFEV RREV

RVR2 RVR1
A2 A1

RFAV RRAV

LRAV LFAV

LR RF LF RR

EJRF703T

NOTE
EV : Inlet Valve
AV : Outlet Valve
LR : Rear left wheel
RF : Front right wheel
LF : Front left wheel
RR : Rear right wheel
PE : Pump motor
USV : Pilot Valve
HSV : High pressure Switch Valve
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -177

ESP FUNCTION LAMP (ESP SYSTEM)

ESP Operation lamp
ESP OFF Warning lamp
The ESP function lamp indicates the self-test and operat-
ing status of the ESP.
The ESP Function lamp operates under the following con-
ditions :
- During the initialization phase after IGN ON. (contin-
uously 3 seconds).
- When the ESP control is operating. (Blinking - 2Hz)

ESP ON/OFF SWITCH (ESP SYSTEM)

Parking/EBD Warning lamp The ESP On/Off Switch shall be used to toggle the ESP
ABS Warning lamp function between On/Off states based upon driver input.
The On/Off switch shall be a normally open, momentary
EJBF500N contact switch.Closed contacts switch the circuit to igni-
tion.
ABS WARNING LAMP MODULE
Initial status of the ESP function is on and switch toggle
The active ABS warning lamp module indicates the self- the state.
test and failure status of the ABS .The ABS warning lamp
shall be on:
- During the initialization phase after IGN ON. (contin-
uously 3 seconds).
- In the event of inhibition of ABS functions by failure.
- During diagnostic mode.
- When the ECU Connector is seperated from ECU.

EBD/PARKING BRAKE WARNING LAMP MODULE

The active EBD warning lamp module indicates the self-

test and failure status of the EBD. However, in case the
Parking Brake Switch is turned on, the EBD warning lamp
is always turned on regardless of EBD functions. The EBD
warning lamp shallbe on:
- During the initialization phase after IGN ON. (contin-
uously 3 seconds).
- When the Parking Brake Switch is ON or brake fluid
level is low.
- When the EBD function is out of order .
- During diagnostic mode.
- When the ECU Connector is seperated from ECU.

ESP WARNING LAMP (ESP SYSTEM)

The ESP warning lamp indicates the self-test and failure

status of the ESP.
The ESP warning lamp is turned on under the following
conditions :
- During the initialization phase after IGN ON. (contin-
uously 3 seconds).
- In the event of inhibition of ESP functions by failure.
- When driver trun off the ESP function by on/off switch.
- During diagnostic mode.
BR -178 BRAKE SYSTEM

COMPONENTS EB2C3FE0

ESP Operation lamp

ESP OFF Warning lamp
Yaw-late & lateral G sensor

ESP Control module(HECU)

Parking/EBD
ABS Warning lamp warning lamp

Steering wheel
angle sensor

Front wheel speed sensor

Rear wheel speed sensor

EJBF500U
BR -179

EJBF500V
HOT IN ON OR START
See Power PASSENGER
Distribution COMPARTMENT
JUNCTION
DIODE MODULE-2 BLOCK
See Indicators FUSE PHOTO 48/49
& Gauges 10A
16 I/P-E 19 I/P-G 7 6 I/P-F
0.5P/B
3 M-10
JOINT
See Passenger CONNECTOR
0.5P 0.5P/B 0.5P Compartment See
Fuse Details PHOTO 71 Illuminations
17 M-1 2 M-10
JOINT 13 M32-C 5 M32-B 0.3Br/O
See CONNECTOR 0.5P/B 0.5P/B
Indicators INSTRUMENT 4 6 M22
& Gauges PHOTO
82 CLUSTER
BRAKE ABS ESP ESP ESP
PHOTO 62 A SWITCH
16 M-1 OFF
( ! )( P ) ESP
( ABS ) ESP OFF ILL. PHOTO 52
BRAKE ON
OFF To Yaw Rate
EBD Sensor(2)
0.5P
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM

3 5 M22
11 12 M32-C 8 M32-A 10 M32-C
0.3Br 0.3P 0.3Gr 0.3Gr/O 0.5W 0.3L/B
37 16 14 17 15 EM02 20 EM01 See
PHOTO 90 Illuminations
0.5P 0.5Br 0.5P 0.5Gr 0.5Gr/O 0.5W
36 12 13 46 44 31 E41
ESP
ESP MODULE
Parking EBD IND. ABS IND. ESP IND. ESP function ESP Switch
brake signal UNIT PHOTO 26
Wheel speed
sensor output(FR) FL SIG FL VCC FR SIG FR VCC RL SIG RL VCC RR SIG RR VCC
EAB16CCB

40 5 26 10 9 27 6 29 8 E41
0.5Gr 0.5G 0.5O 0.5B 0.5W
PHOTO 90
50 JE02
21 22 28 27 EM01
0.5P ENGINE 0.5B 0.5Y 0.5R 0.5L
COMPARTMENT 0.5G 0.5O 0.5B 0.5W
JUNCTION
3 2 MF11 17 16 MF91
ESP CIRCUIT DIAGRAM(1)

BLOCK
PHOTO 30 PHOTO 50 PHOTO 90
0.5G 0.5O 0.5B 0.5W
71 JC101
1 E61 0.3W 2 1 E45 2 1 E49 1 2 F19 1 2 F25
PARKING
BRAKE 52 C144-A LEFT RIGHT LEFT RIGHT
SWITCH PCM FRONT FRONT REAR REAR
PHOTO 47 WHEEL WHEEL WHEEL WHEEL
SENSOR SENSOR SENSOR SENSOR
S P S P S P S P
PHOTO 4 PHOTO 8 PHOTO 107 PHOTO 116
 EJBF500W
BRAKE SYSTEM

HOT AT ALL TIMES

ENGINE YAW
COMPARTMENT RATE
JUNCTION SENSOR
STOP BLOCK PHOTO 77
FUSE PHOTO 30
15A
2 3 6 5 4 1 F08 From
MODULE-2
Fuse(1)
22 JE02
0.5W/B 0.5P 0.5G/B 0.5L 0.5Br/B 0.5P/B A
PHOTO
50
12 13 14 15 11 MF91 2 MF21
A : Close with brake pedal 0.5P/B
1.25R PHOTO
depressed 90
B : Open with brake pedal
depressed
2 4 E62 4 5 EM01 PHOTO 90
STOP 0.5W/B 0.5P 0.5G/B 0.5L 0.5Br/B 0.5P/B 0.5Y 0.5B
A B LAMP 0.5B 0.5Y
SWITCH See Stop 4 E-3
Lamps
PHOTO JOINT
59 2 4 3 M15 See CONN-
1 3 E62 Data Link ECTOR
STEERING Details
ON/START LOW HIGH ANGLE PHOTO 81
33 31 30 32 EM01 input SENSOR 2 E-3
1.25G PHOTO CAN
90 PHOTO
Ground 57 4 E-2
JOINT
1 E-1 1 M15 See CONN-
Data Link ECTOR
JOINT Details
See Stop CONNECTOR
Lamps 0.5B
PHOTO 81 2 E-2 PHOTO 65
8 E-1
0.5B
8 EM01 0.5Y
PHOTO 90
0.5G
0.5W/B 0.5P 0.5G/B 0.5L 0.5Br/B
30 37 18 16 20 15 35 14 E41
ESP
MODULE
ESP CIRCUIT DIAGRAM(2)

Stop lamp Yaw rate Yaw rate Yaw rate Lateral Yaw rate CAN-HIGH CAN-LOW ESP PHOTO
switch sensor test sensor sensor signal ACC. sensor ground UNIT 26
reference
BR -180
BR -181

EJBF500X
HOT IN ON OR START HOT AT ALL TIMES
ENGINE
See Power COMPARTMENT
Distribution JUNCTION
ABS1 ABS2 BLOCK
ABS FUSIBLE FUSIBLE PHOTO 30
PHOTO 24 FUSE LINK LINK
MULTIPURPOSE 10A 40A 20A
CHECK CONNECTOR
15 E20
62 61 66 JE02
0.5G MULTIPURPOSE DATA LINK
CHECK CONNECTOR CONNECTOR
1 EM02 PHOTO 90 18 E20 1 M04
0.5L 0.5L PHOTO 53
0.5G 0.75G 24 EM02 3.0W 2.0O
38 EM02 0.5L
34 EM02 PHOTO 90
0.75G
0.5L
28 11 2 3 E41
ESP
MODULE
PHOTO 26
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM

Diagnosis Vbatt VRactuation ESP

motor relay UNIT
+ECU
DG
Motor HR- Valve
Ground monitoring actuation Moniitoring VO VI DT VS GND
C1
VALVE
6 8 5 7 2A 2B 4A 4B 3A 3B 1A 1B D0 BLOCK
MOTOR
RELAY
VALVE
T2 T1 IN OUT IN OUT IN OUT IN OUT RELAY
M DS T0
HSV2 HSV1 VSV2 VSV1 RR RL FR FL
ESP CIRCUIT DIAGRAM(3)

4 1 E41
2.0B 3.0B
G14 PHOTO 88
BR -182 BRAKE SYSTEM

ESP HECU CONNECTOR INPUT /

OUTPUT E603C607

5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 *
26 27 28 29 30 31
* *4020 * * *44* *46
35 36 37
18

*** ** *** *

AJKF603X

Connector Terminal
Specifications Conditions
No Description
Current range : Min-10 A
1 Ground(Pump) Always
Max-20 ~ 39 A
Current range : Min-2.5 A
4 Ground(Valve,ECU) Always
Max-5 ~ 15 A
2 Supply voltage(Pump)
Battery voltage Always
3 Supply voltage(Valve)
26 Wheel sensor voltage(FL)
9 Wheel sensor voltage(FR)
Battery voltage IG ON
6 Wheel sensor voltage(RL)
8 Wheel sensor voltage(RR)
5 Wheel sensor signal(FL)
10 Wheel sensor signal(FR) Voltage(High) : 0.89~1.26 V
RUNNING
27 Wheel sensor signal(RL) Voltage(Low) : 0.44~0.63 V

29 Wheel sensor signal(RR)

Voltage(High) : 0.8 * IG ON more HI-SCAN
11 Diagnosis Input/oupput
Voltage(Low) : 0.2 * IG ON lower Communication
28 Ignition Battery voltage KEY ON/OFF
Voltage(High) : 0.6 * IG ON more
31 ESP Passive switch Switch ON/OFF
Voltage(Low) : 0.4 * IG ON lower
Voltage(High) : 0.7 * IG ON more
36 Hand brake switch Switch ON/OFF
Voltage(Low) : 0.3 * IG ON lower
Voltage(High) : 4.1 V more
37 Yaw Rate Sensor Test IG ON
Voltage(Low) : 1 V lower
18 Yaw Rate Sensor Reference 2.464 V ~ 2.536 V IG ON
Yaw Rate Sensor Signal Offset voltage :2.5 V
16 IG ON
range : 0.35 V ~ 4.65 V(-100 ~ 100 ˚ /s)
Offset voltage :2.5 V
20 Acceleration Sensor Signal IG ON
range : 0.35 V ~ 4.65 V(-1.8 g ~ 1.8 g)
15 Yaw Rate Sensor Ground GND LEVEL Always
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -183

Connector Terminal
Specifications Conditions
No Description
35 CAN High not communication:2.5 ± 0.5 V
communication :
Bus Level
[Volts]

IG ON
14 CAN Low
Time
recessive dominant recessive

EJRF502L

voltage(High) : 0.8 * IG ON more

30 BRAKE LIGHT SWITCH BRAKE ON/OFF
voltage(Low) : 0.3 * IG ON lower
BR -184 BRAKE SYSTEM

FAILURE DIAGNOSIS E6DEDE5E COUNTERMEASURES IN FAIL

1. In principle, ESP and TCS controls are prohibited in 1. Turn the system down and perform the following ac-
case of ABS failure. tions and wait for HECU power OFF.

2. When ESP or TCS fails, only the failed system control 2. Turn the valve relay off.
is prohibited.
3. Stop the control during the operation and do not exe-
3. However, when the solenoid valve relay should be cute any until the normal condition recovers.
turned off in case of ESP failure, refer to the ABS
WARNING LAMP ON
fail-safe.
1. ABS warning lamp turns on when ABS is fail.
4. Information on ABS fail-safe is identical to the fail-safe
in systems where ESP is not installed. 2. ESP operation lamp turns on when ESP is fail.
MEMORY OF FAIL CODE
When power voltage and valve relay voltage are abnormal,
1. It keeps the code as far as the backup lamp power is input/output related failure judgment is not made.
connected. (O)

2. It keeps the code as far as the HCU power is on. (X)

FAILURE CHECKUP

1. Initial checkup is performed immediately after the

HECU power on.

2. Valve relay checkup is performed immediately after

the IG2 ON.

3. It executes the checkup all the time while the IG2

power is on.

4. Initial checkup is made in the following cases.

1) When the failure is not detected now

2) When ABS and ESP are not in control.

3) Initial checkup is not made after ECU power on.

4) If the vehicle speed is over 5 mph(8 km/h) when

the brake lamp switch is off.

5) When the vehicle speed is over 24.8 mph(40

km/h).

5. Though, it keeps on checkup even if the brake lamp

switch is on.

6. When performing ABS or ESP control before the ini-

tial checkup, stop the initial checkup and wait for the
HECU power input again.

7. Judge failure in the following cases.

1) When the power is normal.

2) From the point in which the vehicle speed

reaches 4.9 mph(8 km/h) after HECU power on.
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -185

YAW-RATE SENSOR & G-SENSOR

DESCRIPTION EF8FF7D0

1. The yaw-rate ＆ lateral G sensor is applied for the

ESP system.

2. The yaw-rate is the angular velocity, when a vehicle

turns a corner, and the lateral G is the acceleration to
move a vehicle out of the way when cornering.

3. The sensor is located in the crash pad lower floor on

vehicle.

KJRE504E

SPECIFICATION

Description Specification Remark

Nominal supply voltage 11.5 ~ 12.5 V
Supply voltage range 8 ~ 16 V
Supply current Max. 120 mA Typ. 75 mA
Reference Voltage Output 2.464 ~ 2.536 V Typ. 2.5 V
Operating temperature range -40 ~ 85℃
Yaw-late sensor +w direction, left turn Min.100 /s Typ. 111 /S
Measurement range
-w direction, right turn Min.100 /s Typ. 111 /S
Non-linearity -1 ~ 1 %
Offset (within life,within operating temperature) 3.75 /S
Upper cut-off frequency Min. 45 Hz Typ. 60 Hz
Lateral G sensor +y direction, left turn Min.1.8 g Typ. 2 g
Measurement range
-y direction, right turn Min. -1.8 g Typ. 2 g
Non-linearity -4 ~ 4 %
Offset (within life,within operating temperature) -0.09 ~ 0.09 g
Upper cut-off frequency Min. 20 Hz Typ. 40 Hz
BR -186 BRAKE SYSTEM

OUTPUT CHARACTERISTIC

Upper limitation Upper limitation

Lower limitation Lower limitation

Yaw-rate w in /s Acceleration a in g

EJRF502E

CIRCUIT DIAGRAM (YAW-RATE ＆ LATERAL G SENSOR)

IGN

IGN 1

3 2 1 Test 2 37
6 5 4 Yaw-rate reference 3 18

GND 4 15

Lateral G sensor signal 5 20

[Yaw-rate & lateral G sensor connector] Yaw-rate sensor signal 6 16

Yaw-rate & lateral G sensor ESP HECU

EJRF502F
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -187

ESP SWITCH [RHD]

DESCRIPTION EE5F6910

1. The ESP OFF switch is for the user to turn off the ESP
system.

2. The ESP OFF lamp is on when ESP OFF switch is

engaged.

INSPECTION ECA76161

1. Remove the ESP OFF switch from the switch panel

on the crushpad of the driver’s side.
[LHD]

6 5 4 3
* *

EJBF506F

2. Check the continuity between the switch terminals as

the ESP OFF switch is engaged.

Terminal
5 6 3 4
Position

ON

OFF
6 5 4 3
* *

EJBF500Y

EJBF505P
BR -188 BRAKE SYSTEM

STEERING WHEEL ANGLE MEASUREING PRINCIPLE

SPEED SENSOR A non contact, analog angle sensor carrying out abso-
lute measuring by the use of the Anisotropic-Magneto-Re-
DESCRIPTION EB79D5CC sistive effect (AMR).Measuring of the absolute angle by
means of a toothed measuring gear with magnetic prop-
GENERAL DATA erties in combination with different ratios. Corresponding
AMR elements that change their electrical resistance ac-
The steering angle speed sensor detects the angle of cording to the magnetic field direction detect the angle po-
the steering wheel in order to which direction a user sition of the measuring gears.A micro-controller decodes
chooses.The sensor is detached on the MPS(Mutil-Func- the measured voltage signals after A/D converting with the
tion Switch) under the steering wheel. help of a mathematical function. Output of the digital an-
gle value and velocity via CAN-interface.

SPECIFICATION

Description Specification
Operating voltage 8~16 V
Operating temperature -40 ~ 85 ℃
Current consumption Max.150 mA
Steering angle velocity Max. ±2000 /sec
Connection delay time t ＜ 200 ms
Reverse voltage -13.5 V
Angle -780 ~ 779
Measuring range
Angular velocity 0~ 1016 /s
Nonlinearity angle -2.5 ~ +2.5
Hysteresis angle 0 ~ 5
Rotational friction torque measuring 10 /s

CIRCUIT DIAGRAM( STEERING WHEEL SPEED

ANGLE SENSOR)

ESP HECU
Steering wheel angle sensor

IG 2 IGN

GND 1 15

High 3 35

Low 4 14

3 2 1
4
* **
EJRF502I
ESP(ELECTRONIC STABILITY PROGRAM) SYSTEM BR -189

STEERING ANGLE SENSOR (SAS) CALIBRATION

1. HYUNDAI VEHICLE DIAGNOSIS
1. PURPOSE OF calibration MODEL : GRANDEUR 05-
- On vehicle control, an ESC analyzes the intention SYSTEM : ANTI - LOCK BRAKE SYSTEM
of the driver.
- An ESC recognizes a steering angle which a 01. DIAGNOSTIC TROUBLE CODES
driver rotates through the steering angle sensor. 02. CURRENT DATA
- A steering angle sensor used in ESC8 adjusts 0 03. FLIGHT RECORD
setting of steering wheel through K-line or CAN 04. ACTUATION TEST
communication. 05. SIMU-SCAN
06. AIR BLEEDING MODE
2. STEERING ANGLE SENSOR (SAS) CALIBRATION 07. IDENTIFICATION CHECK
METHOD 08. STEERING ANGLE SENSOR

EJBF505Q

5) Perform the Steering angle sensor(SAS) calibra-

less than 1
tion.

1. 9 .STEERING ANGLE SENSOR

less than 5

* THIS
AIM
FUNCTION RESET THE SAS
VALVE TO ZERO-SET.
PERFORM THIS FUNCTION WHEN
YOU REPLACE SENSOR OR
STEERING COLUMN.

IF YOU READY, PRESS [ENTER] KEY.

EJRF502J
EJRF703M

1) Align the wheel to the straight line. (steering

6) Perform the procedure continuously.
wheel ＜ ± 5 )
ex) Perform the wheel alignment first.
Align the wheel to the straight line. 1.9 STEERING ANGLE SENSOR
A driver moves the vehicle to the front and back
about 5 meters twice or three times.
STEERING ANGLE SENSOR
2) Connect Hi-scan to the vehicle. STRAIGHTEN THE FRONT TIRE,
AND ARRANGE THE STEERING
3) Select Brake system. CONDITION WHEEL AT THE CENTER
POSITION.
4) Select Steering angle sensor(SAS) calibration. IG.KEY ON, ENGINE STOP

PRESS [REST], IF YOU ARE READY!

REST

EJRF703N
BR -190 BRAKE SYSTEM

7) The procedure is finished. Push the "ESC" key.

1.9 STEERING ANGLE SENSOR

STEERING ANGLE SENSOR

STRAIGHTEN THE FRONT TIRE,

AND ARRANGE THE STEERING
CALIBRATION
CONDITION WHEEL ATCOMPLETION!
THE CENTER
POSITION.
PRESS [ESC] KEY.
IG.KEY ON, ENGINE STOP

PRESS [REST], IF YOU ARE READY!

REST

EJRF703O

8) Scanner OFF.

9) Remove the scanner from the vehicle.

10) Confirm the Steering angle sensor(SAS) calibra-

tion as driving the vehicle.(turn left once, turn
right once)