1999 AUDI A4 steering

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:
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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
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) DTC table
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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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) DTC table
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

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
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) DTC table
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

01-435

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

Continuation:
Third: (Also note the fourth possibility)
The zero position of steering angle sensor -G85- is not 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:

- Follow the procedures from the first and second possibilities.
See continuation on
next page
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) DTC table
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pair&id=AUDI.B5.SU02.01.17

01-436

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:
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:

- Check the sender for rotation rate -G202- by selecting the "Read measuring value block"
function 08 page 01
-256
, display group 5,


The yaw sensor -G202- is loose.
Repair Manual, Brake System, Repair Group 45

- Check bolts for yaw sensor -G202-.



See continuation on next
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
ge 88 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

01-439

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

- Check the combined sensor for rotation rate and transverse acceleration by selecting "Read
measuring value block" function 08 page 01
-256
, display group 5


See continuation on next
page
The combined sensor for rotation rate and
transverse acceleration is loose.
Repair Manual, Brake System, Repair
Group 45
- Check bolts for combined sensor for
rotation rate and transverse acceleration.
Pa
ge 92 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17