2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 223
- Ignition on
Possible fault causes
- PDK control unit faulty
Fault setting conditions
- Internal bus error
Fault effects
- All pressure regulators, solenoid valves and shift-lock switch off
- Start enable only in position P
- Emergency hold function
- Transmission limp-home indication in instrument cluster control unit
Transmission Ratio Monitoring
P18A5
Diagnosis information - PDK
Transmission ratio monitoring
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
- Speed sensors faulty
- Lines faulty
Fault setting conditions
- Rotational speed comparison of input shaft and output shaft supplies fault
Fault effects
- Limp-home message in instrument cluster
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
Software Monitoring, Calculation Of E-shift Position Implausible
P18B0
Diagnosis information - PDK
Software monitoring, calculation of E-shift position implausible
