Diagnosis Information - PDK (Dual-Clutch Transmission)

P18A5

Diagnosis information - PDK

Selector lever position implausible

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
- PDK control unit faulty
- Selector lever control unit faulty
- Serial line between PDK control unit and selector lever faulty

Fault setting conditions
- Signal from CAN does not match serial data signal

Fault effects
- Transmission limp-home indication in instrument cluster