Hydraulic Gear Selection: Current Gear Is Disengaged and No New Gear Is Engaged During Shift Overlap (Even Target Gear)

P17D3

Diagnosis information - PDK

Hydraulic gear selection: Current gear is disengaged and no new gear is engaged during shift overlap (even target gear)

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
- Only gears 2, 4, 6 and R are possible
- Transmission limp-home indication in instrument cluster control unit