1A-18 Engine Control System (6HK1)

Engine Control Module (ECM) Connector Connector No. FB24

End Views Connector color Black
Engine Control Module (ECM)
Test adapter No. J-35616-64A
Pin No. Wire color Pin function
VSS signal (with digital
tachograph) or vehicle speed
19 YEL/ GRN
signal from speed sensor control
unit (without digital tachograph)
20 – Not used
21 BLU/ WHT ECM main relay control
MAF sensor low reference (Euro 4
22 BLK
specification)
MAF sensor 12 volts reference
23 RED
(Euro 4 specification)
24 BLK/ BLU Ignition voltage
25 RED/ WHT Cruise control main switch signal
Clutch pedal switch signal
26 WHT/ BLU
(manual transmission)
27 – Not used

Connector No. FB24 28 – Not used

Connector color Black 29 – Not used

Test adapter No. J-35616-64A 30 – Not used

Pin No. Wire color Pin function 31 – Not used

1 BLK/ YEL ECM power ground 32 – Not used

2 WHT/ RED Battery voltage 33 – Not used

3 BLK/ YEL ECM power ground 34 BRN/ YEL A/C signal

4 BLK/ YEL ECM power ground Dropping resistor (Euro 4
35 GRN
specification)
5 WHT/ RED Battery voltage
36 – Not used
6 YEL/ BLK MIL control
37 BLU CAN low signal
7 BRN/ GRN Exhaust brake lamp control
Keyword 2000 serial data (except
8 LT GRN Engine speed signal output 38 LT BLU
Euro 4 specification)
LT GRN/ DPD amber lamp control (Euro 4 PTO throttle sensor, idle up
9
BLK specification) 39 GRY sensor and BARO sensor shield
10 WHT/ GRN Glow relay control ground

11 ORN/ BLU Glow plug lamp control 40 BLU/ WHT ECM main relay control

12 – Not used APP sensor 1, idle up sensor,

41 BLK cruise control switch and PTO
13 – Not used throttle sensor low reference
14 BLK/ RED Starter cut relay control APP sensor 1, idle up sensor and
Exhaust brake solenoid valve 42 WHT PTO throttle sensor 5 volts
15 GRN/ RED reference
control
16 BLU/ YEL Engine oil level lamp control 43 BLK/ YEL ECM signal ground

SVS lamp control (Euro 4 44 VIO/ WHT PTO switch signal

17 BLU/ BLK
specification) LT GRN/
45 Exhaust brake switch signal
18 BLU/ WHT CAN high signal RED
46 BLK/ WHT Ignition switch signal
 Engine Control System (6HK1) 1A-19

Connector No. FB24 Connector No. FB24

Connector color Black Connector color Black
Test adapter No. J-35616-64A Test adapter No. J-35616-64A
Pin No. Wire color Pin function Pin No. Wire color Pin function
DPD regeneration switch signal Exhaust differential pressure
47 RED/ GRN
(Euro 4 specification) sensor, exhaust temperature
79 BLK sensor 1 and exhaust temperature
48 YEL Parking brake switch signal
sensor 2 low reference (Euro 4
49 – Not used specification)

50 BLK/ GRN Neutral switch signal Exhaust differential pressure

80 WHT/ ORN sensor 5 volts reference (Euro 4
51 – Not used specification)
52 GRY/ WHT Diagnostic request switch 81 BLK/ YEL ECM case ground
Engine oil level switch signal
53 VIO/ YEL
(except Euro 2 specification)
54 GRN/ BLK Brake switch 1 signal
55 GRN/ ORN Brake switch 2 signal
56 – Not used
57 – Not used
58 GRN/ WHT CAN high signal
59 – Not used
APP sensor 2, BARO sensor and
60 BLU
IAT sensor low reference
APP sensor 2 and BARO sensor 5
61 GRN
volts reference
62 BLK/ YEL ECM signal ground
63 RED APP sensor 1 signal
64 YEL APP sensor 2 signal
65 BRN/ BLU Cruise control switch signal
66 YEL/ BRN Idle up sensor signal Connector No. E26
Exhaust differential pressure Connector color Black
67 GRN/ YEL sensor signal (Euro 4
specification) Test adapter No. J-35616-64A

68 BLK/ YEL Ground Pin No. Wire color Pin function

MAF sensor signal (Euro 4 82 BLK FRP sensor signal

69 WHT/ BLK
specification) LT GRN/
83 FT sensor signal
70 RED PTO throttle sensor signal WHT

71 WHT/ RED BARO sensor signal 84 GRN/ YEL ECT sensor signal

72 GRN/ WHT IAT sensor signal Intake throttle position sensor

85 VIO/ WHT signal (except Euro 2
Exhaust temperature sensor 1 specification)
73 YEL/ RED
signal (Euro 4 specification)
86 – Not used
Exhaust temperature sensor 2
74 RED/ YEL CMP sensor, FRP sensor and
signal (Euro 4 specification)
87 LT GRN EGR position sensor 5 volts
75 – Not used reference
76 – Not used 88 – Not used
77 – Not used 89 GRN/ BLK FRP regulator low side
78 GRN CAN low signal 90 BLK FRP sensor signal
1A-20 Engine Control System (6HK1)

Connector No. E26 Connector No. E26

Connector color Black Connector color Black
Test adapter No. J-35616-64A Test adapter No. J-35616-64A
Pin No. Wire color Pin function Pin No. Wire color Pin function
91 WHT Boost pressure sensor signal Common 2 (cylinder #4, #5 and
116 RED
#6) fuel injector charge voltage
92 – Not used
117 WHT/ BLU Cylinder #3 fuel injector control
EGR position sensor signal 2
93 BRN
(except Euro 2 specification) 118 BLK/ WHT Cylinder #6 fuel injector control
EGR position sensor signal 1 119 YEL Cylinder #1 fuel injector control
94 BLU
(except Euro 2 specification)
120 BLK/ BLU Cylinder #5 fuel injector control
CKP sensor, intake throttle
Common 1 (cylinder #1, #2 and
95 YEL position sensor and boost 121 WHT
#3) fuel injector charge voltage
pressure sensor 5 volts reference
96 – Not used
97 GRN/ BLK FRP regulator low side Engine Control Connector End Views
98 WHT CMP sensor signal Accelerator Pedal Position (APP) Sensor
EGR position sensor signal 3
99 GRY
(except Euro 2 specification)
CMP sensor and FRP sensor
100 BLK
shield ground
CMP sensor, FRP sensor and
101 YEL/ BLK EGR position sensor low
reference
Exhaust throttle solenoid valve
102 GRN/ ORN
control (Euro 4 specification)
EGR motor control 2 (PWM)
103 ORN
(except Euro 2 specification)
Intake throttle motor low side
104 GRN (PWM) (except Euro 2
specification)
FRP regulator control high side
105 WHT/ RED
(PWM)
106 – Not used
107 LT BLU CKP sensor signal
Connector No. FL1
CKP sensor and boost pressure
108 BLK Connector color Gray
sensor shield ground
CKP sensor, intake throttle Test adapter No. J-35616-33
position sensor, FT sensor, ECT Pin No. Wire color Pin function
109 BLK
sensor and boost pressure sensor
low reference APP sensor 2
1 GRN
5 volts reference
EGR motor control 3 (PWM)
110 BLK/ RED
(except Euro 2 specification) 2 YEL APP sensor 2 signal
LT GRN/ EGR motor control 1 (PWM) 3 BLU APP sensor 2 low reference
111
RED (except Euro 2 specification)
APP sensor 1
4 WHT
Intake throttle motor drive voltage 5 volts reference
112 BLK/ BLU
(except Euro 2 specification)
5 RED APP sensor 1 signal
FRP regulator control high side
113 WHT/ RED 6 BLK APP sensor 1 low reference
(PWM)
114 BLK/ RED Cylinder #2 fuel injector control
115 BLK/ RED Cylinder #4 fuel injector control
 Engine Control System (6HK1) 1A-21
Barometric Pressure (BARO) Sensor
Connector No. E54
Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 WHT Sensor signal
2 BLK Sensor low reference
3 YEL Sensor 5 volts reference

Brake Switch 1

Connector No. FL52

Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 BLU Sensor low reference
2 WHT/ RED Sensor signal
3 GRN Sensor 5 volts reference

Boost Pressure Sensor

Connector No. FU159
Connector color Black
Test adapter No. J-35616-42
Pin No. Wire color Pin function
1 GRN/ BLK Switch signal
2 BLK Switch ground
1A-22 Engine Control System (6HK1)
Brake Switch 2 Connector No. FU179
Connector color White
Test adapter No. J-35616-42
Pin No. Wire color Pin function
2 WHT/ BLU Switch signal

Camshaft Position (CMP) Sensor

Connector No. FB5 or FB144

Connector color Black
Test adapter No. J-35616-42
Pin No. Wire color Pin function
1 GRN/ ORN Switch signal
2 BLK/ YEL Switch ground
Connector No. E48
Clutch Pedal Switch Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 WHT Sensor signal
2 YEL/ BLK Sensor low reference
3 LT GRN Sensor 5 volts reference

Crankshaft Position (CKP) Sensor

Connector No. FU179

Connector color White
Test adapter No. J-35616-42
Pin No. Wire color Pin function
1 BLK/ ORN Ignition voltage feed
 Engine Control System (6HK1) 1A-23
Data Link Connector (DLC)
Connector No. E50
Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 LT BLU Sensor signal
2 BLK Sensor low reference
3 YEL Sensor 5 volts reference

Cruise Control Main Switch

Connector No. FU23

Connector color Light blue
Test adapter No. J-35616-2A
Pin No. Wire color Pin function
1 – Not used
LT GRN/ Class 2 serial data (EHCU [ABS
2
RED module])
3 – Not used
4 BLK Ground
Connector No. FU208 5 BLK Ground
Connector color Brown 6 GRN/ WHT CAN high (Euro 4 specification)
Test adapter No. J-35616-33 Keyword serial data (ECM
[except Euro 4 specification], air
Pin No. Wire color Pin function
7 LT BLU suspension control unit, TCM,
1 – Not used SRS control unit, ICU, BCM and
IP cluster)
2 – Not used
Class 2 serial data (ABS control
Cruise control main switch 8 PNK
3 BLK/ ORN unit)
ignition voltage feed
Keyword serial data (HSA control
4 RED/ WHT Cruise control main switch signal 9 RED/ WHT
unit)
5 – Not used 10 – Not used
6 – Not used 11 – Not used
7 BLK Illumination lamp ground Diagnostic request switch (ECM
LT GRN/ [except Euro 4 specification], air
8 Illumination lamp voltage feed 12 GRY/ WHT
RED suspension control unit, IP
cluster and SRS control unit)
9 – Not used
LT GRN/ Diagnostic request switch (EHCU
10 – Not used BLU [ABS module])
13
Diagnostic request switch (ABS
WHT/ VIO
control unit)
14 GRN CAN low (Euro 4 specification)
1A-24 Engine Control System (6HK1)

Connector No. FU23 EGR Valve

Connector color Light blue

Test adapter No. J-35616-2A
Pin No. Wire color Pin function
15 – Not used
16 RED Battery voltage

DPD Regeneration Switch

Connector No. E45

Connector color Black
Test adapter No. J-35616-64A
Pin No. Wire color Pin function
1 LT GRN Position sensor 5 volts reference
2 GRY Position sensor signal 3
3 BRN Position sensor signal 2
Connector No. FU142
4 BLU Position sensor signal 1
Connector color Blue
5 YEL/ BLK Position sensor low reference
Test adapter No. J-35616-33
6 BLK/ RED Motor control 3
Pin No. Wire color Pin function
7 ORN Motor control 2
1 BLK/ ORN Switch voltage feed
LT GRN/
8 Motor control 1
2 RED/ GRN Switch signal RED

3 – Not used
Engine Coolant Temperature (ECT) Sensor
4 – Not used
5 – Not used
6 – Not used
7 BLK Illumination lamp ground
LT GRN/
8 Illumination lamp voltage feed
RED
9 – Not used
10 – Not used
 Engine Control System (6HK1) 1A-25
Exhaust Differential Pressure Sensor
Connector No. E55
Connector color Gray
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 GRN/ YEL Sensor signal
2 BLK Sensor low reference

Exhaust Brake Solenoid Valve

Connector No. FB66

Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 BLK Sensor low reference
2 GRN/ YEL Sensor signal
3 WHT/ ORN Sensor 5 volts reference

Connector No. FB41 or J8 Exhaust Temperature Sensor 1

Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 GRN/ BLK Ignition voltage feed
2 GRN/ RED Solenoid valve control
1A-26 Engine Control System (6HK1)
Exhaust Throttle Solenoid Valve
Connector No. FB67
Connector color Light gray
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 BLK Sensor low reference
2 YEL/ RED Sensor signal

Exhaust Temperature Sensor 2

Connector No. FB112

Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 GRN/ BLK Battery voltage feed
2 GRN/ ORN Solenoid valve ground

Fuel Injector #1 to #6 Cylinder

Connector No. FB68
Connector color Dark gray
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 BLK Sensor low reference
2 RED/ YEL Sensor signal

E71, E72, E73

Connector No.
E74, E75 and E76
Pin No. Wire color Pin function
1 #1, #3 and #5:
WHT
Charge voltage
2 #2, #4 and #6:
RED
 Engine Control System (6HK1) 1A-27

E71, E72, E73 Fuel Rail Pressure (FRP) Sensor

Connector No.
E74, E75 and E76
Pin No. Wire color Pin function
#1: GRN
#2: BRN
#3: YEL
3 Fuel injector control
#4: VIO
#5: BLU
#6: BLK

Fuel Rail Pressure (FRP) Regulator

Connector No. E49

Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 YEL/ BLK Sensor low reference
2 BLK Sensor signal
3 LT GRN Sensor 5 volts reference

Connector No. E47 Fuel Temperature (FT) Sensor

Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
Regulator control high side
1 WHT/ RED
(PWM)
2 GRN/ BLK Regulator low side
1A-28 Engine Control System (6HK1)
Mass Air Flow (MAF)/ Intake Air Temperature (IAT)
Sensor (Euro 4 Specification)
Connector No. E30
Connector color Gray
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 BLK Sensor low reference
LT GRN/
2 Sensor signal
WHT

Glow Plug

Connector No. J14 or FB128

Connector color Black
Test adapter No. J-35616-64A
Pin No. Wire color Pin function
1 RED MAF sensor 12 volts reference
2 BLK MAF sensor low reference
3 WHT/ BLK MAF sensor signal
4 GRN/ WHT IAT sensor signal
Connector No. E31
5 BLU IAT sensor low reference
Connector color –
Pin No. Wire color Pin function Intake Air Temperature (IAT) Sensor (Except Euro 4
1 BLK/ RED Power Supply Specification)
 Engine Control System (6HK1) 1A-29
Idle Up Sensor
Connector No. J194 or FB196
Connector color Black
Test adapter No. J-35616-16
Pin No. Wire color Pin function
1 GRN/ WHT Sensor signal
2 BLU Sensor low reference

Intake Throttle Valve

Connector No. FL33

Connector color White
Test adapter No. J-35616-33
Pin No. Wire color Pin function
BLU/ RED
1 Sensor low reference
BLK
YEL/ GRN
2 Sensor signal
YEL/ BRN
Connector No. E46
BLU
Connector color Black 3 Sensor 5 volts reference
WHT
Test adapter No. J-35616-64A
Pin No. Wire color Pin function PTO Throttle Sensor
1 GRN Motor control low side (PWM)
2 BLK/ BLU Motor drive voltage
3 – Not used
4 BLK Position sensor low reference
5 YEL Position sensor 5 volts reference
6 VIO/ WHT Position sensor signal
1A-30 Engine Control System (6HK1)
Vehicle Speed Sensor (VSS)
Connector No. FB129
Connector color Black
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 BLK Sensor low reference
2 RED Sensor signal
3 WHT Sensor 5 volts reference

Rotary Electric Actuator (REA)

Connector No. FB156, FB157 or J117

Connector color Gray
Test adapter No. J-35616-33
Pin No. Wire color Pin function
1 GRN Ignition voltage feed
2 BLK Sensor low reference
3 GRY Sensor signal

Connector No. E10

Connector color White
Test adapter No. J-35616-64A
Pin No. Wire color Pin function
1 RED CAN high
2 – Not used
3 GRN/ BLK Voltage feed
4 GRN CAN low
5 – Not used
6 BLK ground