2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 396
Software Monitoring, Calculation Of E-shift Position Implausible
P189C
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
Positive Engine Torque Intervention Not Possible
P189C
Diagnosis information - PDK
Positive 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
- DME control unit detects engine fault
Fault setting conditions
- Torque intervention not possible
Fault effects
- Transmission limp-home indication in instrument cluster control unit
Software Monitoring, Implausible Calculation Of Engine Rpm Control Intervention
P189C
Diagnosis information - PDK
Software monitoring, implausible calculation of engine rpm control 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 engine speed control
