2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 397

2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 397

Fault effects

- Transmission limp-home indication in instrument cluster control unit

- Message counter stopped

Engine Torque Intervention Not Possible

P189C

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

Software Monitoring, Reset Was Triggered By Operating System Monitoring A

P189C

Diagnosis information - PDK

Software monitoring, reset was triggered by operating system monitoring A

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

- Internal software monitoring reports fault

- Undervoltage

Fault effects

- No power transmission for reference speed < 5 km/h (3 mph) and valid transmission range

- Transmission limp-home indication in instrument cluster control unit

Software Monitoring, Implausible Calculation Of Positive Engine Torque Intervention

P189C

Diagnosis information - PDK

Software monitoring, implausible calculation of positive engine torque intervention

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

- Fault in calculation path for positive engine intervention