Hydraulic Gear Selection: No Or Wrong Shift Rod Moved During Shift Overlap

P17D2

Diagnosis information - PDK

Hydraulic gear selection: No or wrong shift rod moved during shift overlap

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
- Incorrect shift rod moves by more than 2.2 mm

Fault effects
- Gear held
- Pressure adjusters 5 and 6 depressurized
- Speed limitation to overspeed in 1st gear
- White transmission limp-home indication in instrument cluster