light AUDI A4 1998 B5 / 1.G Brakes ESP Electrical Testing User Guide
[x] Cancel search | Manufacturer: AUDI, Model Year: 1998, Model line: A4, Model: AUDI A4 1998 B5 / 1.GPages: 65, PDF Size: 0.21 MB
Page 46 of 65
01-336
Function test: Traction control indicator light -K86-
Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work stepsSpecified
value Corrective
action
19 - Function of traction
control indicator light -
K86- DTC memory checked and no DTC
present in DTC memory of ABS control
module -J104-. Ignition switched off Multi-pin connector connected to ABS
control module -J104- and retainer catch
engaged.
See continuation on next page
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Page 47 of 65
01-337
Continuation: Function test: Traction control indicator light -K86-
Test step
VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified value
Corrective action
19
Continuation: - Function of
traction
control
indicator light
-K86- - Switch on
ignition Traction control
indicator light -K86-
comes on for two
(2) seconds and
then goes out.
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations - If traction control indicator light does
not light up, check vehicle voltage and
wire from terminal 31 of ABS control
module -J104- to instrument cluster for
short circuit to B+ and open circuit.
- If traction control indicator lights
continuously, test wiring from terminal
31 of ABS control module -J104- to
instrument cluster for short circuit to
Ground (GND).
See continuation on next page
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Page 48 of 65
01-338
Continuation: Function test: Traction control indicator light -K86-
Test
step VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified
value Corrective action
19 - Function of
traction control
indicator light -
K86-
Repair Manual, Electrical Equipment, Repair
Group 90; Instrument cluster
- Are voltage of electrical system OK and wiring
from terminal 31 of ABS control module -J104-
to instrument cluster intact? malfunction in
instrument cluster
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Page 49 of 65
01-339
Function test: Traction control button; set measurement range on VAG1526: 20 V =
Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work stepsSpecified
value Corrective
action
20 - Function of
ASR/ESP button Ignition switched off Function of traction control indicator light -
K86- already checked in step 19. Multi-pin connector connected to ABS control
module -J104- and retainer catch engaged.
See continuation on next page
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Page 50 of 65
01-340
Continuation: Function test: Traction control button; set measurement range on VAG1526: 20 V =
Test
step VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified value
Corrective action
20 - Function of
ASR/ESP
button
- Switch on ignition
- Press ASR/ESP
button Traction control
indicator light -K86-
lights up - Switch off ignition.
- Detach multi-pin connector from
ABS control module -J104- and
remove.
- Press ASR/ESP
button again Traction control
indicator light -K86-
goes out - Connect VAG1598/20 test box.
See continuation on next page
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Page 62 of 65
01-352
Voltage measurement; set measurement range on VAG1526: 20 V =
Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work
steps Specified
value Corrective action
26 28 + 48 Function of brake
light switch -F- Ignition switched
off
- Check wire from terminal 28 to
Ground (GND).
Brake pedal not
depressed
- Operate brake
pedal. 0.0 to 1.0 V
10.0 to 14.5
V Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
Repair Manual, Brake System,
Repair Group 45
- Check wiring from terminal 48 to
terminal 30 via fuse (10A).
- Adjust brake light switch -F-.
See continuation on next page
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Page 63 of 65
01-353
Continuation: Voltage measurement; set measurement range on VAG1526: 20 V =
Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work
steps Specified
value Corrective action
26 28 + 42 Function of brake light
switch -F-(Brake test
switch)
Brake pedal not
depressed
- Operate brake
pedal. 10.0 to 14.5
V
0.0 to 1.0 V Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
Repair Manual, Brake System,
Repair Group 45
- Check wiring from terminal 42 to
terminal 15 via fuse (10A).
- Adjust brake light switch -F-.
Pa
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Page 64 of 65
01-354
Voltage measurement; set measurement range on VAG1526: 20 V =
Test
step VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified
value Corrective action
27 1 + 76 Function of parking
brake warning light
switch -F9- Ignition switched
on.
- Check wiring from terminal 1 to terminal
15 via fuse (10A).
Parking brake
not engaged
- Set parking brake0.0 to 1.0
V
10.0 to 14.5
V Electrical Wiring Diagrams,
Troubleshooting & Component Locations - Check wiring from terminal 76 to parking
brake warning light switch -F9- for open
circuit or short circuit to B+.
See continuation on next page
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Page 65 of 65
01-355
Continuation: Voltage measurement; set measurement range on VAG1526: 20 V =
Test
step VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified
value Corrective action
27 1 + 76
Function of parking
brake warning light
switch -F9-
Parking brake
not engaged
- Set parking brake0.0 to 1.0
V
10.0 to
14.5 V
Electrical Wiring Diagrams,
Troubleshooting & Component Locations - Check Ground (GND) to parking brake
warning light switch -F9-.
- If no malfunction could be determined
using the procedures in these steps, replace
the parking brake warning light switch -F9-.
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