steering AUDI A4 1998 B5 / 1.G Brakes ESP DTC Table User Guide

01-403

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
01423
Continuation:
Note:
Sensor for
transverse
acceleration -G200-
Implausible signal
The input signals received by ABS control module -J104- are analyzed by computing programs and
checked for plausibility. If the sensor for transverse acceleration -G200- fails, the relevant computing
program relies primarily on the steering angle sensor -G85-. If you think there is a problem with the
sensor for transverse acceleration -G200-, check whether the steering angle sensor -G85- is OK.
The steering angle sensor must also be checked.
- While driving straight ahead (v < 20 km/h), check the zero position of the steering angle sensor -
G85-, by selecting "Read measuring value block", function 08 page 01
-256
, display group 5
page 01
-270
.
- Check the sensor for transverse acceleration -G200- as described in the instructions for "Read
measuring value block" function 08 page 01
-270
, display group 5, page 01
-270
.
See continuation on
next page There are four possibilities:
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01-404

Printed output from
VAG1551 Scan Tool (ST) Possible cause
Corrective action
DTC
01423
Sensor for transverse
acceleration -G200-
Implausible signal

Continuation:
First:
The zero position of steering angle sensor -G85- is not within the specified range, and the
zero position of sensor for transverse acceleration -G200- is within the specified range:





See continuation on next
page
- Then perform zeroing procedure page 01
-243
- Erase DTC memory page 01
-15
- End Output page 01
-16
.
- Road test vehicle page 01
-250
- If the malfunction occurs again, follow the procedure for the second
case.
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01-405

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC WARNING!
This is only valid for control modules with no.: 4B0 907 389
01423
Sensor for transverse
acceleration -G200-
Implausible signal

Continuation:
Second:
The zero position of steering angle sensor -G85- is within the specified range, and the zero
position of sensor for transverse acceleration -G200- is not within the specified range:


Open circuit in signal line to sensor for
transverse acceleration -G200-.
Short circuit to B+ or Ground (GND) in
signal line to sensor for transverse
acceleration -G200-. Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Check signal line between sensor for transverse
acceleration -G200 (terminal 2) and ABS control
module -J104- (terminal 18).


See continuation on
next page Note: Only replace the control module as a
last resort.
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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01-407

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC WARNING!
This is only valid for control modules with no.: 8D0 907 389, 8D0 907 389A, 8D0 907 389D
and 8D0 907 389E.
01423
Sensor for transverse
acceleration -G200-
Implausible signal

Continuation:
Second:
The zero position of steering angle sensor -G85- is within the specified range, and the zero position
of sensor for transverse acceleration -G200- is not within the specified range:


There is an open circuit in one of the signal
wires for the combined sensor for rotation
rate and transverse acceleration.
There is short circuit to B+ or Ground (GND)
in one of the signal wires for the combined
sensor for rotation rate and transverse
acceleration. Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Check the signal wire for the combined sensor
for rotation rate and transverse acceleration,
terminal 4, to the ABS control module -J104-
(terminal 18).


See continuation on Note: Only replace the control module as a last
resort.
ABS control module -J104- malfunctioning
Repair Manual, Brake System, Repair Group
45
- If the malfunction cannot be fixed, replace the
ABS control module -J104-.
Pa
ge 56 of 96 Electronic Stabilization Pro
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) DTC table
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pair&id=AUDI.B5.SU02.01.17

01-409

Printed output from
VAG1551 Scan Tool (ST) Possible cause
Corrective action
DTC
01423
Sensor for transverse
acceleration -G200-
Implausible signal

Continuation:
Third:
The zero position of steering angle sensor -G85- is not within the specified range, and the
zero position of sensor for transverse acceleration -G200- is not within the specified range:

- Follow the procedures from the first and second cases.
See continuation on next
page
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01-410

Printed output from
VAG1551 Scan Tool (ST) Possible cause
Corrective action
DTC
01423
Sensor for transverse
acceleration -G200-
Implausible signal

Continuation:
Fourth:
The zero position of steering angle sensor -G85- is within the specified range, and the zero
position of sensor for transverse acceleration -G200- is within the specified range:


Sensor for transverse acceleration -
G200- malfunctioning.
Repair Manual, Brake System, Repair Group
45
- Erase DTC memory page 01
-15
- End Output page 01
-16
.
- Road test vehicle page 01
-250
- If malfunction occurs again, replace sensor for
transverse acceleration -G200-.

Note: Only replace the control module as
a last resort.
ABS control module -J104-
malfunctioning
Repair Manual, Brake System, Repair Group
45
- If the malfunction cannot be fixed, replace the
ABS control module -J104-.
Pa
ge 61 of 96 Electronic Stabilization Pro
gram
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) DTC table
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e=re
pair&id=AUDI.B5.SU02.01.17

01-427

Printed output
from VAG1551
Scan Tool (ST) Possible cause
Corrective action
DTC
01542
Sender for
rotation rate -
G202-
Implausible
signal The input signals received by ABS control module -J104- are analyzed by computing programs and
checked for plausibility. If the sender for rotation rate -G202- fails, the relevant computing program relies
primarily on the steering angle sensor -G85- and the sensor for transverse acceleration -G200-. If you
think there is a problem with the sender for rotation rate -G202-, check whether the steering angle
sensor -G85- and sensor for transverse acceleration -G200- are OK. These must also be checked.
- While driving straight ahead (v < 20 km/h), check the zero position of the steering angle sensor -G85-,
by selecting display group 5 in "Read measuring value block", function 08 page 01
-256
.
- Check the sensor for transverse acceleration -G200- as described in the instructions for "Read
measuring value block" function 08 page 01
-270
, display group 5.
See continuation
on next page There are four possibilities:
Pa
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pair&id=AUDI.B5.SU02.01.17

01-428

Printed output from VAG1551
Scan Tool (ST) Possible cause
Corrective action
DTC
01542
Sender for rotation rate -G202-
Implausible signal

Continuation:
First: (Also note the fourth possibility)
The zero position of steering angle sensor -G85- is not within the specified range, and the
zero position of yaw sensor -G202- is within the specified range:



See continuation on next
page
- Perform zeroing. page 01
-243
- Erase DTC memory page 01
-15
- End Output page 01
-16
.
- Road test vehicle page 01
-250
- If the malfunction occurs again, follow the procedure for the second
case.
Pa
ge 80 of 96 Electronic Stabilization Pro
gram
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) DTC table
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yp
e=re
pair&id=AUDI.B5.SU02.01.17

01-429

Printed output from
VAG1551 Scan Tool (ST) Possible cause
Corrective action
DTC WARNING!
This is only valid for control modules with no.: 4B0 907 389
01542
Sender for rotation rate -
G202-
Implausible signal

Continuation:
Second: (Also note the fourth possibility)
The zero position of steering angle sensor -G85- is within the specified range, and the zero
position of yaw sensor -G202- is not within the specified range:



See continuation on next
page
Open circuit in signal wire of sender
for rotation rate -G202-.
Short circuit to B+ or Ground (GND)
in signal wire to sender for rotation
rate -G202-. Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Check signal line between yaw sensor -G202-
(terminal 3) and ABS control module -J104-
(terminal 79).
Pa
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01-432

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC WARNING!
This is only valid for control modules with no.: 8D0 907 389, 8D0 907 389A, 8D0 907 389D
and 8D0 907 389E.
01542
Sender for rotation rate
-G202-
Implausible signal

Continuation:
Second: (Also note the fourth possibility)
The zero position of steering angle sensor -G85- is within the specified range, and the zero position
of the sensor for transverse acceleration -G200-, or the combined sensor for rotation rate and
transverse acceleration, is not within the specified range:


There is an open circuit in one of the signal
wires for the combined sensor for rotation
rate and transverse acceleration.
There is short circuit to B+ or Ground
(GND) in one of the signal wires for the
combined sensor for rotation rate and
transverse acceleration. Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Check the signal wire for the combined sensor
for rotation rate and transverse acceleration,
terminal 4, to the ABS control module -J104-
(terminal 18).
Pa
ge 84 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17