Friday, December 13, 2019

2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 656

2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 656



Fault setting conditions



- Limit for number of permissible gear skips exceeded



Fault effects



- Reduced gear selection



- Transmission limp-home indication in instrument cluster control unit



Synchro Reverse Gear Not Disengageable



P1780



Diagnosis information - PDK



Synchro reverse gear not disengageable



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



- The following faults are not detected: P1731, P1732, P1733 or P1734



- The following faults are not detected: P1706 or P1707



- Alternative measure HSS3_OFF not active



Possible fault causes



- Hydraulics faulty (hydraulic control unit)



- Transmission faulty



Fault setting conditions



- Reverse gear cannot be disengaged



Fault effects



- Gear held



- No gear preselection



- Transmission limp-home indication in instrument cluster control unit



Synchro Reverse Gear Not Engageable Or Gear Skip



P1780



Diagnosis information - PDK



Synchro reverse gear not engageable or gear skip



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



- The following faults are not detected: P1731, P1732, P1733 or P1734



- The following faults are not detected: P1706 or P1707



- Alternative measure HSS3_OFF not active



Possible fault causes



- Hydraulics faulty (hydraulic control unit)



- Transmission faulty



Fault setting conditions



- Target gear Reverse gear, actual gear is disengaged before pressure adjusters 5/6 are activated



- 2nd gear is engaged instead of reverse gear



- No shift rod moves



NOTE: The individual detection times are temperature-dependent (cold 2 s, warm 1 s)



Fault effects



- Gear held



- Only gears 1, 2, 4 and 7 are possible



- Transmission limp-home indication in instrument cluster control unit



Synchro 1st Gear Not Disengageable