brake AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual
Page 21 of 37
24-99
Transmission Range (TR) selector lever
position signal, checking
Note:
The Engine Control Module (ECM) uses this
signal to recognize the transmission range
selector lever position. When a driving mode is
selected, idle speed should drop by approx. 50
RPM to reduce creep.
Checking requirement
Control module coding OK page 01
-247
.
- Switch ignition ON.
- Using VAG 1551 scan tool, select "Read
Measuring Value Block" function 08, display
group 004, display field 4 page 01
-249
.
Read measuring value block 4 1 2 3 4
Indicated on display
CAUTION! Specified value: XXX_1X (TR selector lever in P or N)
- Apply brake and select drive mode (1, 2, 3, R or D).
Specified value: XXX_0X
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Page 36 of 37
24-110
- Find and eliminate open or short circuit; repair
as necessary.
If wiring is OK:
- Replace ABS control module.
If the ABS control module is OK, but the
malfunction is still occurring:
- Replace ECM page 01
-265
.
ABS control module with ABS/EDL/ASR
Notes:
The torque signal is monitored by the
"Automatic Traction Control" Control Module
and by the ECM.
Repair Manual, Brake System On Board
Diagnostic (OBD), Repair Group 01
Vehicles with automatic traction control (ASR)
can be recognized by the ASR indicator light in
the instrument cluster or by control module
identification displayed during the ABS On
Board Diagnostic program sequence.
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Page 37 of 37
Repair Manual, Brake System On Board
Diagnostic (OBD), Repair Group 01
Checking requirement
Control module coding OK page 01
-247
.
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