Audi A3 1997 - Page 176

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Display on VAS 5051 Possible cause of trouble Fault remedy
Immobilizer reading spool -D2 - Connector not attached or fault in
reader coil and wiring
- Check connector and reader coil as
well as wiring (visual inspection) and
replace reader coil if necessary
=> Electrical System; Repair Group 96
- Immobilizer control unit (integrated
into dash panel insert) defective
- Erase fault memory => Page 170 ,
interrogate again and replace dash
panel insert if necessary
=> Electrical System; Repair Group 90
Display on VAS 5051 Possible cause of trouble Fault remedy
01176
Key
Signal too low - Reader coil or wire defective (contact re‐
sistance/loose contact)
- Check reader coil as well as wiring and
connector (visual inspection) and replace
reader coil if necessary
=> Electrical System; Repair Group 96
- No electronics in ignition key (transpond‐
er) or not functioning
- Replace ignition key, re-match all ignition
keys and check operation => Page 176
Not authorised - Mechanically suitable ignition key not
matched
- Re-match all ignition keys and check op‐
eration => Page 176
Display on VAS 5051 Possible cause of trouble Fault remedy
01177
Engine control unit
Not authorised - Engine control unit not adapted - Adapt engine control unit=>Page 188
01179
Incorrect key programming - Ignition keys not properly match‐
ed
- Re-match all ignition keys with entry of PIN
and check operation=>Page 176
65535
Control unit defective - Dash panel insert (with integrated
immobilizer) defective
- Replace dash panel insert
=> Electrical System; Repair Group 90
6.6 - Erasing 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 168
• All faults eliminated
Audi A3 1997 ➤
Electrical system Self-diagnosis - Edition 02.2002
170 01 - Self-diagnosis