Clutch 1 Slips With Low Differential Speed

P17B3

Diagnosis information - PDK

Clutch 1 slips with low differential speed

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

Possible fault causes
- Clutch faulty
- Hydraulics faulty

Fault setting conditions
- Engine speed - shaft speed 1 - desired slip > maximum permissible slip

Fault effects
- Gear held
- Moving off in 2nd gear
- Only gears 2, 4 and 6 are possible
- Transmission limp-home indication in instrument cluster control unit