2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 230
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: Reset Was Triggered By Application Software Monitoring
P18B4
Diagnosis information - PDK
Software monitoring: reset was triggered by application software 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
- PDK control unit faulty
Fault setting conditions
- Internal software monitoring reports fault
Fault effects
- No power transmission at speeds < 5 km/h (3 mph)
- Transmission limp-home indication in instrument cluster control unit
Software Monitoring A Of Signal Processing Unit
P18B4
Diagnosis information - PDK
Software monitoring A of signal processing unit
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
- Complement error
Fault effects
- CAN alive counter freeze
- Engine speed limitation
- Transmission limp-home indication in instrument cluster control unit
Software Monitoring B Of Signal Processing Unit
P18B4
Diagnosis information - PDK
Software monitoring B of signal processing unit
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
