Engagement Block, Synchronisation, Or Gear Skip

P1779

Diagnosis information - PDK

Engagement block, synchronisation, or gear skip

Diagnostic conditions
The control unit initially tests internal function sequences when the ignition is switched on (terminal 15). If they are OK, all diagnosable outputs are then tested and any faults are stored.

- Ignition on
- The following faults are not detected: P1731, P1732, P1733, P1734

Possible fault causes
- Clutch faulty
- Hydraulics faulty

Fault setting conditions
- Limit for number of permissible gear skips exceeded

Fault effects
- Reduced gear selection
- Transmission limp-home indication in instrument cluster control unit