Software Monitoring, Calculation Of E-shift Position Implausible

P1897

Diagnosis information - PDK

Software monitoring, calculation of E-shift 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

Fault setting conditions
- Racing start status without driver request
- Power transmission without driver request
- No shift in spite of driver request
- Displayed position not same as engaged position

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