Engine Torque Intervention Not Possible

P18B5

Diagnosis information - PDK

Engine torque intervention not possible

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
- Fault in CAN bus

Fault setting conditions
- Torque intervention not possible

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