light AUDI A4 1998 B5 / 1.G Brakes ESP DTC Table Workshop Manual

01-357
DTC table; DTCs from 00000 to 00526

Printed output from VAG1551
Scan Tool (ST) Possible cause
Corrective action
DTC
00000
No malfunction recognized!
If this display appears, process is
concluded. No DTCs are stored in
DTC memory.
If there are still problems or
malfunctions anyway, check the
following points:
If one or more indicator lamps light up anyway,
one of the wires that activates the indicator
lamps may be malfunctioning. Missing signal from parking brake warning light
switch -F9-. (parking brake set or released). - See section "Overview of
indicator lamp functions"
page 01
-222
.
Check the parking brake
warning light switch -F9-.
- "Read measuring value block"
function 08 page 01
-256
,
display group 2.

See continuation on next page

Missing signal from brake light switch -F.
Check the brake light switch
-F.
- "Read measuring value block"
function 08 page 01
-256
,
display group 2.
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) DTC table
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01-372

Printed output from
VAG1551 Scan Tool (ST) Possible cause
Corrective action
DTC
00526
Brake light switch -F-
Open circuit
Left brake light -M9- or right brake light -
M10- malfunctioning. Open circuit in wiring between brake lights
and the ABS control module -J104-. Electrical Wiring Diagrams,
Troubleshooting & Component Locations - Check the wiring. Carry out "Electrical
test", step 26 page 01
-323
.
- Replace bulbs.


See continuation on next
page
ABS control module -J104- malfunctioning
Repair Manual, Brake System, Repair
Group 45
- If the malfunction cannot be fixed,
replace the ABS control module -J104-.
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01-373

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action



DTC
00526
Continuation:
Brake light switch -F-
Implausible signal
The brake light switch is not adjusted
correctly.
Note: The brake light switch must be
adjusted exactly. - Check brake light switch, "Read measuring
value block", display group 2 page 01
-256



Open circuit/short circuit to B+ or Ground
(GND) in wiring between brake light switch -
F- and the ABS control module -J104-. - Check wiring between brake light switch -F-
and the ABS control module -J104-. Carry out
"Electrical test", step 26 page 01
-323
.

See continuation on
next page
Brake light switch malfunctioning.
Repair Manual, Brake System, Repair
Group 46
- If the malfunction cannot be fixed. replace
the brake light switch.
Pa
ge 19 of 96 Electronic Stabilization Pro
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) DTC table
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01-374

Printed output from VAG1551
Scan Tool (ST) Possible cause
Corrective action
DTC
00526
Brake light switch -F-
Implausible signal

Continuation:
ABS control module -J104-
malfunctioning
Repair Manual, Brake System, Repair Group 45

- If the malfunction cannot be fixed, replace the
ABS control module -J104-.

Master brake cylinder
malfunctioning.
Repair Manual, Suspension, Wheels, Steering,
Repair Group 47
- Check the master brake cylinder, and replace if
necessary.

Brake booster malfunctioning
Repair Manual, Suspension, Wheels, Steering,
Repair Group 47
- Check the brake booster, and replace if
necessary.
Pa
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01-375
DTC table; DTCs from 00532 to 01421

Printed output from VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
00532
Voltage supply
See continuation on next page
This malfunction affects the voltage supply
of the control module.
This DTC is only stored, if it occurs the first
time the vehicle exceeds 6 km/h.
As soon as the supply voltage is again
within the valid voltage range, the system
is switched back on and the warning lights
turn off.
Open circuit or resistance too high
between voltage supply of terminal 15
and ABS control module -J104-
(terminal 1). Open circuit or resistance too high in
the Ground (GND) supply to ABS
control module -J104- (terminals 28
and 29). Voltage jumps in vehicle system. Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
Repair Manual, Electrical
Equipment, Repair Group 27, Battery
- "Read measuring value block"
function 08 page 01
-256
,
display group 6.
- Carry out "Electrical test",
step 21 page 01
-323

- Check Generator (GEN) and
Voltage Regulator (VR). - Check battery
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01-376

Printed output from VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
00532
Continuation:
Voltage supply
Signal too small

This malfunction affects the voltage supply
of the control module.
This DTC is only stored, if it occurs the first
time the vehicle exceeds 6 km/h.
As soon as the supply voltage is again
within the valid voltage range, the system
is switched back on and the warning lights
turn off.
Open circuit or resistance too high
between voltage supply of terminal 15
and ABS control module -J104-
(terminal 1). Open circuit or resistance too high in
the Ground (GND) supply to ABS
control module -J104- (terminals 28
and 29). Voltage jumps in vehicle system. Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
Repair Manual, Electrical
Equipment, Repair Group 27, Battery
- "Read measuring value block"
function 08 page 01
-256
,
display group 6.
- Carry out "Electrical test",
step 21 page 01
-323

- Check Generator (GEN) and
Voltage Regulator (VR). - Check battery
Pa
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01-417
DTC table; DTCs from 01435 to 01542

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
01435
Sender 1 for brake
booster -G201-
The brake light switch is not adjusted
correctly or is not installed correctly.
Repair Manual, Brake System, Repair Group 45
- Check the installation position of the brake light
switch.
- Check brake light switch -F-, "Read measuring
value block" function 08 page 01
-256
, display
group 2
- Check sensor for brake pressure -G201-, "Read
measuring value block" function 08 page 01
-256
,
display group 5




See continuation on
next page
Open circuit in signal wire of sender
1 for brake booster -G201-.
Short circuit to B+ or Ground (GND)
in signal wire to sender 1 for brake
booster -G201-. Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Check signal line between sensor for brake
pressure -G201- (terminal 2) and ABS control
module -J104- (terminal 68).
Pa
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) DTC table
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