P1706

P1706

Diagnosis Information - PDK

Sensor supply voltage 5 V too low

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 fault is not detected: P1752

Possible fault causes
- Line between pressure sensors and PDK control unit faulty
- Line between displacement sensor module and PDK control unit faulty
- Pressure sensor 1 faulty
- Pressure sensor 2 faulty
- Displacement sensor module faulty
- PDK control unit faulty

Fault setting conditions
- Sensor supply voltage < 4.5 V

Fault effects
- Gear held
- No R gear
- No emergency program diagnosis
- Transmission limp-home indication in instrument cluster control unit