Audi A6 Current Flow Diagram No.
19
1.9 litre turbo-diesel engine (81 kW, 4-cylinder), engine codes AFN
Model year 1998
Fuse box 13-point relay carrier
Fuse colours: Position of relays:
8 12 1 6 2 0 30 A - green 4 - Starter inhibitor and reversing
light relay (J226)
5 9 13 1 7 2 1 25 A - white
1 3 6 10 14 18 22 20 A - yellow 15 16 17 18
2 4 7 11 15 19 23
15 A - blue
24 31 38 Res 10 A - red 14 1 2 3 4 5 6
25 32 39 Res 5 A - beige
26 33 40 Res
27 34 41 Res 7 8 9 10 11 12 13
28 35 42 Res
29 36 43
30 37 44
From fuse number 23 upwards the fuses in
A97--0119 the fuse box are designated as 223 etc. in the A97 0024
Current Flow Diagram.
Micro-central electrics
Position of relays:
4 - Relay for glow plugs (J52)
5 6
75X 30 30 30a 87F/Diesel
A B C
A97--0110
Edition 04.98
Audi A6 Current Flow Diagram No. 19/1
3-point relay carrier in electronics box,
8-point relay carrier plenum chamber
Position of relays: Position of relays:
14 15
1 - Radiator fan run-on relay (J138) 3 - Diesel direct injection system
16 17 4 5 relay (J322)
3 - Radiator fan relay (J26)
5 - Engine control unit fuse (S102)
1 6 7 20 - Radiator fan fuse (S42)
2 3 4 5 - Fuse for glow plugs - engine
1 2 3 9
21 - Radiator fan control unit fuse (S142) (S39)
24 13 12 11 10 9 8
23 22 21 20 19 18 6 7 8 9
A97--0025
A97--0026
Relay carrier, drivers side, behind dash
panel at central carrier
Position of relays:
1 - Low heat output relay (J359)
3 - High heat output relay (J360)
C - Additional heater fuse 2 (S143)
1 2 3 D - Additional heater fuse (S109)
A B C D A97--0127
Edition 04.98
Audi A6 Current Flow Diagram No. 19/2
Battery, starter, alternator, starter inhibitor and
reversing light relay
A - Battery
B - Starter
C - Alternator
C1 - Voltage regulator
D - Ignition/starter switch
F4 - Reversing light switch
F125 - Multi-function switch
J217 - Automatic gearbox control unit
J226 - Starter inhibitor and reversing light relay
M16 - Reversing light bulb, left
M17 - Reversing light bulb, right
T2p - 2-pin connector, blue, in engine compartment, right
T6l - 6-pin connector, red, connector point, electronics
box, plenum chamber
T9 - 9-pin connector, brown, at starter inhibitor relay
T10f - 10-pin connector, brown, connector point, A pillar,
left
T10o - 10-pin connector, brown, connector point,
electronics box, plenum chamber
T10v - 10-pin connector, brown, connector point, A pillar,
right
T10w - 10-pin connector, blue, connector point, A pillar, right
1 - Earth strap, battery - body
135 - Earth connection -2-, in dash panel wiring
harness
199 - Earth connection -3-, in dash panel wiring
harness
A17 - Connection (61), in dash panel wiring harness
A38 - Positive (+) connection -2- (15a), in dash panel
wiring harness
ws = white A41 - Positive (+) connection (50), in dash panel
sw = black wiring harness
ro = red
br = brown A87 - Connection (RF (reversing light)), in dash panel
gn = green wiring harness
bl = blue
gr = grey * - Models with manual gearbox
li = purple ** - Models with automatic gearbox
ge = yellow *** - Both possible
Edition 01.98
Audi A6 Current Flow Diagram No. 19/3
Glow plugs, relay for glow plugs
D -
Ignition/starter switch
E87 -
Control and display unit for air conditioner
J52 -
Glow plug relay
J217 -
Automatic gearbox control unit
Q6 -
Glow plugs (engine)
S5 -
Fuse in fuse box
S39 -
Fuse for glow plugs - engine
S231 -
Fuse in fuse box
T6l -
6-pin connector, red, connector point,
electronics box, plenum chamber
T10n - 10-pin connector, yellow, connector point,
electronics box, plenum chamber
T10w - 10-pin connector, blue, connector point, A pillar,
right
A2 - Positive (+) connection (15), in dash panel
wiring harness
A20 - Positive (+) connection (15a), in dash panel
wiring harness
D16 - Connection (glow plugs), in front right wiring
harness
* - Models with air conditioner
** - Models with automatic gearbox
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
Edition 01.98
Audi A6 Current Flow Diagram No. 19/4
Diesel direct injection system control unit, diesel
direct injection system relay, fuse, valves
G70 -
Air mass meter
J217 -
Automatic gearbox control unit
J248 -
Diesel direct injection system control unit
J322 -
Diesel direct injection system relay
N18 -
Exhaust gas recirculation valve
N75 -
Charge pressure control solenoid valve
S102 -
Engine control unit fuse
T10c -
10-pin connector, grey, connector point, A pillar,
left
T10l - 10-pin connector, white, connector point,
electronics box, plenum chamber
T10n - 10-pin connector, yellow, connector point,
electronics box, plenum chamber
T10w - 10-pin connector, blue, connector point, A pillar,
right
43 - Earth point, lower part of right A-pillar
85 - Earth connection -1-, in engine compartment
wiring harness
A32 - Positive (+) connection (30), in dash panel
wiring harness
A99 - Connection -1- (87), in dash panel wiring
harness
D83 - Connection (87), in engine compartment wiring
harness
D101 - Connection -1-, in engine compartment wiring
harness
* - Models with manual gearbox and cruise control
system
** - Models with automatic gearbox and cruise
control system
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
Edition 01.98
Audi A6 Current Flow Diagram No. 19/5
Diesel direct injection system control unit,
accelerator pedal position sender, brake light
switch, clutch pedal switch, injection pump
F - Brake light switch
F8 - Kick-down switch
F36 - Clutch pedal switch
F60 - Idling switch
G79 - Accelerator pedal position sender
G81 - Fuel temperature sender
G149 - Modulating piston movement sender
J217 - Automatic gearbox control unit
J248 - Diesel direct injection system control unit
M9 - Brake light bulb, left
M10 - Brake light bulb, right
N108 - Commencement of injection valve
N109 - Fuel shut-off valve
N146 - Metering adjuster
T3l - 3-pin connector, black, on injection pump
T6a - 6-pin connector, blue, connector point, A pillar,
left
T8b - 8-pin connector, injection pump
T10l - 10-pin connector, white, connector point,
electronics box, plenum chamber
T10m - 10-pin connector, blue, connector point,
electronics box, plenum chamber
T10v - 10-pin connector, brown, connector point, A
pillar, right
T10w - 10-pin connector, blue, connector point, A pillar,
right
135 - Earth connection -2-, in dash panel wiring
harness
199 - Earth connection -3-, in dash panel wiring
harness
ws = white A18 - Connection (54), in dash panel wiring harness
sw = black
ro = red
br = brown D102 - Connection -2-, in engine compartment wiring
gn = green harness
bl = blue
gr = grey * - Models with manual gearbox
li = purple ** - Models with automatic gearbox
ge = yellow *** - Both possible
Edition 01.98
Audi A6 Current Flow Diagram No. 19/6
Diesel direct injection system control unit,
additional heater relay, fuses
D - Ignition/starter switch
E87 - Control and display unit for air conditioner
F38 - Ambient temperature switch
J214 - Thermotronic control unit
J217 - Automatic gearbox control unit
J248 - Diesel direct injection system control unit
J359 - Low heat output relay
J360 - High heat output relay
S13 - Fuse in fuse box
S109 - Additional heater fuse
S143 - Additional heater fuse 2
T10c - 10-pin connector, grey, connector point, A pillar,
left
T10n - 10-pin connector, yellow, connector point,
electronics box, plenum chamber
T10o - 10-pin connector, brown, connector point,
electronics box, plenum chamber
T10p - 10-pin connector, black, connector point,
electronics box, plenum chamber
T10v - 10-pin connector, brown, connector point, A
pillar, right
Z35 - Additional heating heater element
44 - Earth point, lower part of left A-pillar
156 - Earth connection, in diesel direct injection
wiring harness
A45 - Connection (engine speed signal), in dash panel
wiring harness
A52 - Positive (+) connection 2 (30), in dash panel
wiring harness
A68 - Connection (C15, air conditioner), in dash panel
ws = white wiring harness
sw = black F32 - Connection (additional heater), in diesel direct
ro = red injection system wiring harness
br = brown
gn = green
bl = blue * - Models with automatic gearbox
gr = grey ** - Models with Thermotronic
li = purple *** - Models with air conditioner
ge = yellow
**** - Models with 120 A alternator
Edition 01.98
Audi A6 Current Flow Diagram No. 19/7
Diesel direct injection system control unit, cruise
control system switch, engine speed sender,
coolant temperature, intake manifold pressure,
intake manifold temperature and needle lift
E45 - Cruise control system switch
G2 - Coolant temperature sender
G28 - Engine speed sender
G62 - Coolant temperature sender
G71 - Intake manifold pressure sender
G72 - Intake manifold temperature sender
G80 - Needle lift sender
J189 - Auto-check system
J217 - Automatic gearbox control unit
J248 - Diesel direct injection system control unit
T2r - 2-pin connector, brown, in engine
compartment, right
T3m - 3-pin connector, black, on engine speed sender
T10c - 10-pin connector, grey, connector point, A pillar,
left
T10n - 10-pin connector, yellow, connector point,
electronics box, plenum chamber
T10o - 10-pin connector, brown, connector point,
electronics box, plenum chamber
T10p - 10-pin connector, black, connector point,
electronics box, plenum chamber
T10q - 10-pin connector, black, on cruise control
system switch
T10v - 10-pin connector, brown, connector point, A
pillar, right
T20 - 20-pin connector, red/white, on dash panel
insert
85 - Earth connection -1-, in engine compartment
wiring harness
269 - Earth connection (sender earth) -1-, in dash
ws = white panel wiring harness
sw = black A108 - Connection (speed signal), in dash panel wiring
ro = red harness
br = brown
gn = green
bl = blue * - Models with manual gearbox
gr = grey ** - Models with automatic gearbox
li = purple *** - Models with cruise control system
ge = yellow
# - Models with on-board computer
Edition 04.98
Audi A6 Current Flow Diagram No. 19/8
Dash panel insert, warning lamps, speedometer
sender, fuel gauge, oil temperature gauge, rev.
counter
F1 - Oil pressure switch
F66 - Coolant shortage indicator switch
G - Fuel gauge sender
G1 - Fuel gauge
G5 - Rev. counter
G8 - Oil temperature sender
G9 - Oil temperature gauge
G21 - Speedometer
G22 - Speedometer sender (Hall sender, on gearbox)
J218 - Combi-processor in dash panel insert
K - Diagnosis connection
K2 - Alternator warning lamp
K3 - Oil pressure warning lamp
K28 - Coolant temperature/coolant shortage warning
lamp
K29 - Glow period warning lamp
T10f - 10-pin connector, brown, connector point, A
pillar, left
T10o - 10-pin connector, brown, connector point,
electronics box, plenum chamber
T10p - 10-pin connector, black, connector point,
electronics box, plenum chamber
T16a - 16-pin connector, diagnosis connection
T32 - 32-pin connector, blue, on dash panel insert
T32a - 32-pin connector, green, on dash panel insert
85 - Earth connection -1-, in engine compartment
wiring harness
135 - Earth connection -2-, in dash panel wiring
harness
269 - Earth connection (sender earth) -1-, in dash
panel wiring harness
ws = white A76 - Connection (diagnosis wire K), in dash panel
sw = black wiring harness
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
Edition 01.98
Audi A6 Current Flow Diagram No. 19/9
Engine cooling
F18 -
Radiator fan thermo-switch
F54 -
Radiator fan thermo-switch
J26 -
Radiator fan relay
J138 -
Radiator fan run-on relay
J217 -
Automatic gearbox control unit
N39 -
Radiator fan series resistor
S42 -
Radiator fan single fuse
S142 -
Radiator fan control unit fuse
T10c -
10-pin connector, grey, connector point, A pillar,
left
T10v - 10-pin connector, brown, connector point, A
pillar, right
V7 - Radiator fan
44 - Earth point, lower part of left A-pillar
193 - Earth connection -1-, in coolant fan wiring
harness
* - Models with automatic gearbox
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
ge = yellow
Edition 01.98
