AUDI A4 1996 B5 / 1.G Brakes Output DTM 03 Repair Manual

1) This malfunction can only be detected when the vehicle is moving
Pa
ge 51 of 66 Out
put Dia
gnostic Test Mode
(DTM
) (function 03
)
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p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.13

01-193

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

00301
ABS return flow pump -V39 -
Malfunction in hydraulic
control unit - Erase DTC memory page 01
-15
- End Output page 01
-16
.
- Switch off ignition.
- Switch on ignition

- If malfunction occurs again, replace hydraulic
control unit.
Pa
ge 52 of 66 Out
put Dia
gnostic Test Mode
(DTM
) (function 03
)
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p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.13

01-194

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

00526
Brake light switch -F-
Open circuit

Both brake lights -M9- (left) and -
M10- (right) malfunctioning.
Wire from brake lights to control
module faulty.
ABS control module -J104-
malfunctioning
Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Check brake light switch, "Read measuring value
block", display group 2 page 01
-140
.
- Locate and repair open circuit or short circuit.
- Replace bulbs.
Pa
ge 53 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

01-195

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

(w/EDL) -J104- is malfunctioning.
Pa
ge 55 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

01-197

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

00532
Voltage supply
Signal too small

Notes:

This malfunction affects the voltage supply
of the control module.
This DTC is only stored, if the malfunction
occurs at a vehicle speed above 6 km/h.
As soon as vehicle voltage is within the
valid voltage range again, the ABS/EDL or
ASR system is switched back on and the
warning lights turn off.
Open circuit or contact resistance
too high between voltage supply
from terminal 15 hydraulic control
unit, terminal 15. Voltage jumps in vehicle system.
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
Repair Manual, Electrical
Equipment, Repair Group 27.
- Carry out "Electrical test", step
1 page 01
-166
.
- Locate and repair open circuit
in voltage supply. - Check Generator (GEN) and
Voltage Regulator (VR). - Check battery

Malfunction in hydraulic control unit- If no malfunctions can be
found in the voltage supply,
replace hydraulic control unit.
Pa
ge 57 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

01-199

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

00623
ABS / transmission
electrical connection

This malfunction only
occurs if vehicle is
equipped with ASR. Data is transferred between the ABS control
module -J104- and the Transmission Control
Module (TCM) 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
.

Manual transmission


ABS/EDL/ASR control module -J104-
incorrectly coded.
Short circuit to B+
Electrical Wiring Diagrams,
Troubleshooting & Component Locations - Check coding of ABS/EDL/ASR control
module -J104- page 01
-135
.
- Locate and repair short circuit.

Automatic transmission


ABS/EDL/ASR control module -J104-
incorrectly coded.
Open circuit or short circuit to Ground (GND)
in wiring between ABS/EDL/ASR control
module -J104- and Transmission Control
Module (TCM) -J217-.
Electrical Wiring Diagrams,
Troubleshooting & Component Locations - Check coding of ABS/EDL/ASR control
module -J104- page 01
-135
.
- Locate and repair open circuit or short
circuit.
Pa
ge 59 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

01-200

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

00646
ABS-ASR motor electrical connection
1 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
.
Note:
The following signals are sent from
the ABS control module (w/EDL) -
J104- to the Engine Control Module
(ECM) via this connection:
Open circuit or short circuit to B+ or
Ground (GND) in wiring between ABS
control module -J104- terminal 13 and
Engine Control Module (ECM).
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations - Locate and repair open circuit or
short circuit.
MMD signal (Masked Misfire
Diagnostic) for On Board
Diagnostic (OBD)
SET signal (Specified Engine
Torque)
ABS/EDL/ASR control module -J104-
malfunctioning. - Replace ABS/EDL/ASR hydraulic
control unit.

ETR signal (Engine Torque
Reduction signal)
Engine Control Module (ECM)
malfunctioning. - Replace Engine Control Module
(ECM).
Pa
ge 60 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