Audi A3 1997 - Final Control Diagnosis

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Display on VAS 5051 Possible cause of trouble Fault remedy
- "1" not displayed in measured value block
125 for automatic gearbox control unit
=>Page 70
- Dash panel insert adaption not performed
correctly
- Select adaption channel 60 and enter
correct adaption value => Page 102
Display on VAS 5051 Possible cause of trouble Fault remedy
01336
Group convenience data bus
- Defective - Open circuit in wiring or short circuit at
control unit in group convenience data
bus
- Use current flow diagram to perform
fault-finding
- Incorrect control unit in group conven‐
ience data bus, i.e. no CAN capability
- Replace control unit with one featur‐
ing CAN capability
- "1" not displayed in measured value
block 132 for radio =>Page 70
- Control unit with CAN capability not
adapted during dash panel insert adap‐
tion
- Select adaption channel 61 and enter
correct adaption value => Page 104
- In one-wire operation
- Data bus only operating on one wire
(may lead to EMC problems)
- Check data exchange => Page 109
Display on VAS 5051 Possible cause of trouble Fault remedy
01402
Data wire from navigation
- Implausible signal - Open circuit in clock, enable or data
wire
- Check data wires for damage
- Problem with interface between navi‐
gation system and dash panel insert
- Fault caused by electromagnetic inter‐
ference in or outside vehicle
- Check causes of electromagnetic inter‐
ference
=> Radio, Telephone, Navigation; Repair
Group 91; Navigation System Navigation
System
65535
Control unit defective - Dash panel insert defective - Replace dash panel insert
=> Electrical System; Repair Group 90;
Dash panel insert as of Model Year 2000
Dash panel insert as of Model Year 2000
3.6 - Final control diagnosis
Notes:
◆ Final control diagnosis can only be performed with engine stopped and ignition switched on.
◆ If final control diagnosis detects a fault, locate and eliminate cause of problem.
"Final control diagnosis" function consecutively actuates the following dash panel insert control elements (if
fitted/encoded):
Actuation sequence
1 Analog displays
2 Dash panel insert warning lamp test
3 Seat belt warning system warning lamp -K19
4 Gong
Audi A3 1997 ➤
Electrical system Self-diagnosis - Edition 02.2002
54 01 - Self-diagnosis