wheel AUDI A4 1995 B5 / 1.G Brakes Output DTM 03 Owner's Manual

01-195

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

00529
Wheel speed information
missing


This malfunction only
occurs if vehicle is
equipped with ASR. Data is transferred between the ABS
control module -J104- and the Engine
Control Module (ECM) via a single wire. For more information, see the section "Systems
related to ASR" page 01
-42
and the table
"Control module versions" page 01
-134
.
See continuation on next
page


Open circuit or short circuit to B+ or
Ground (GND) in wire between ABS
control module -J104- and Engine
Control Module (ECM). Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Locate and repair open circuit or short circuit.


Engine Control Module (ECM)
malfunctioning. - If the tachometer in the instrument cluster is
malfunctioning and no malfunctions can be found
in the wiring, the Engine Control Module (ECM)
is malfunctioning.

ABS control module -J104-
malfunctioning - If the tachometer in the instrument cluster
functions properly and no malfunctions can be
found in the wiring, the ABS control module
Pa
ge 54 of 66 Out
put Dia
gnostic Test Mode
(DTM
) (function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.13

01-196

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

00529
Wheel speed information
missing

Continuation: Data is transferred between ABS
control module -J104- and Engine
Control Module (ECM) via the
CAN-bus. For more information, see the section "Systems related
to ASR" page 01
-42
and the table "Control module
versions" page 01
-134
.
This malfunction only
occurs if vehicle is
equipped with ASR.


The Engine Control Module
(ECM) is not able to provide the
engine speed (RPM) signal for
the CAN-bus. - Check DTC memory of Engine Control Module (ECM).
If there is a malfunction, fix it according to the
appropriate engine Repair Manual and erase DTC
memory of the Engine Control Module (ECM).
- If there are no DTCs stored in the Engine Control
Module (ECM), replace the Engine Control Module
(ECM) as a test.

The ABS control module
(w/EDL) -J104- is not able to
evaluate the engine speed
(RPM) signal for the CAN-bus. - If the steps listed above do not repair the malfunction,
replace the ABS control module -J104-.
Pa
ge 56 of 66 Out
put Dia
gnostic Test Mode
(DTM
) (function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.13

01-198

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

00597
Varying wheel speed
impulse
Wheel or tire sizes not the same on all four
wheels. - Check wheel and tire sizes.

ABS wheel speed sensor rotor dirty or
damaged.
Repair Manual, Brake System, Repair
Group 45
- Check rotor.


Excessive wheel bearing play.
Repair Manual, Suspension, Wheels,
Steering, Repair Group 40

Repair Manual, Suspension, Wheels,
Steering, Repair Group 42
- Check wheel bearing


ABS wheel speed sensors -G44-, -G45-, -G46-
, and -G47- installed incorrectly.
ABS wheel speed sensors -G44-, -G45-, -G46-
, and -G47- malfunctioning Repair Manual, Brake System, Repair
Group 45
- Check ABS wheel speed sensors.
- Carry out "electrical test", steps 4
through 7 page 01
-166
.
Pa
ge 58 of 66 Out
put Dia
gnostic Test Mode
(DTM
) (function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.13