Audi A8 1994 - Erase Fault Memory

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Immobilizer reader coil -D2 - Connector not attached or fault in read‐
er coil and wiring
- Check connector and reader coil as
well as wiring (visual inspection) and re‐
place reader coil if necessary
=> Electrical System; Repair Group 96;
Servicing immobilizer Servicing immo‐
bilizer
- Immobilizer control unit defective - Erase fault memory and interrogate it
again => Page 78 ; replace dash panel
insert if necessary.
=> Electrical System; Repair Group 90;
Dash panel insert Dash panel insert
Readout on VAS 5051 Possible cause of trouble Remedy
01176
Key
Signal too low - Reader coil or wire defective - Check reader coil as well as wiring and
connector (visual inspection) and replace
reader coil if necessary
=> Electrical System; Repair Group 96;
Servicing immobilizer Servicing immobiliz‐
er
- No electronics in ignition key (transpond‐
er) or not functioning
- Replace ignition key, re-match all ignition
keys and check operation => Page 01-180
Not authorized - Mechanically suitable ignition key not
matched
- Re-match all ignition keys and check op‐
eration => Page 01-180
Readout on VAS 5051 Possible cause of trouble Remedy
01177
Engine control unit
Not authorized - Engine control unit not adapted - Adapt engine control unit
=>Page 96
01179
Incorrect key programming - Ignition keys not properly match‐
ed
- Re-match all ignition keys with entry of PIN
and check operation=>Page 01-180
65535
Control unit
Defective - Dash panel insert defective - Replace dash panel insert.
=> Electrical System; Repair Group 90; Dash
panel insert Dash panel insert
2.6 - Erase fault memory
Notes:
◆ If fault memory cannot be erased, interrogate fault memory again and eliminate fault.
◆ After erasing fault memory, faults are not updated until ignition has been switched off and on again.
Requirements:
• Fault memory interrogated => Page 76
• All faults eliminated
Audi A8 1994 ➤
Electrical system Self-diagnosis 02.99 ➤ - Edition 05.2002
78 01 - Self-diagnosis