Audi A8 1994 Service Manual page 14

Audi A8 1994 ➤
Electrical system Self-diagnosis 02.99 ➤ - Edition 05.2002
Readout on VAS 5051 Possible cause of trouble
01315
Gearbox control unit
- No communication
Readout on VAS 5051
01320
Climatronic control unit -J255
- No communication
Readout on VAS 5051
01325
Tyre pressure monitor control unit
- No communication
Readout on VAS 5051
01327
Automatic parking system control unit
10
01 - Self-diagnosis
- CAN bus fault
- Open circuit in wiring or short
- Wiring damage
- "1" not displayed in measured value block
125 for engine control unit =>Page
- Dash panel insert adaption not performed
correctly
- Gearbox control unit defective
Possible cause of trouble
- CAN bus fault
- Open circuit in wiring or short
- Wiring damage
- "1" not displayed in measured value
block 131 for air conditioner control unit
=>Page 27
- Dash panel insert adaption not per‐
formed correctly
- Control unit defective
Possible cause of trouble
- CAN bus fault
- Open circuit in wiring or short
- Wiring damage
- "1" not displayed in measured value
block 130 for control unit=>Page
27
- Dash panel insert adaption not per‐
formed correctly
- Control unit defective
Possible cause of trouble
Remedy
- Use current flow diagram to perform fault-
finding
=> Current Flow Diagrams, Electrical
Fault-finding and Fitting Locations binder
- Select adaption channel 60 and enter cor‐
27 rect adaption value => Page
- Replace gearbox control unit
=> Repair Group 01; of relevant gearbox
code
Remedy
- Use current flow diagram to perform
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not fault-finding
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
=> Current Flow Diagrams, Electrical
with respect to the correctness of information in this document. Copyright by AUDI AG.
Fault-finding and Fitting Locations
binder
- Select adaption channel 61 and enter
correct adaption value => Page
- Replace Climatronic control unit
=> Air Conditioner; Repair Group 87
Remedy
- Use current flow diagram to per‐
form fault-finding
=> Current Flow Diagrams, Electri‐
cal Fault-finding and Fitting Loca‐
tions binder
- Select adaption channel 66 and
enter correct adaption value =>
Page 62
- Replace tyre pressure monitor
control unit
=> Running Gear, Front-wheel
Drive and Four-wheel Drive; Re‐
pair Group 44
Remedy
62
62