2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 671
Fault setting conditions
- Actual measured voltage HS4 < 0.3 V
Fault effects
- Shiftlock power supply switch-off
- Shiftlock function switch-off
- No shift-lock function
- Selector lever is blocked in P and can be released only mechanically (emergency release)
- White transmission limp-home indication in instrument cluster
Power Supply For Pressure Regulator 1 (Clutch 1), Short Circuit To B+
P1838
Diagnostic information - PDK
Power supply for pressure regulator 1 (clutch 1), short circuit to B+
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 fault is not detected: P1752
Possible fault causes
- Line between pressure regulator 1 and PDK control unit faulty
- Pressure regulator 1 faulty
- PDK control unit faulty
Fault setting conditions
- Actual measured voltage HS1 > 4 V
Fault effects
- Power supply switch-off, pressure regulator clutch 1
- Pressure regulator clutch 1, switch-off
- No gear preselection
- No R gear
- Only gears 2, 4 and 6 are possible
- White transmission limp-home indication in instrument cluster
Power Supply For Pressure Regulator 1 (Clutch 1), Short Circuit To Ground
P1838
Diagnosis information - PDK
Power supply for pressure regulator 1 (clutch 1), short circuit to ground
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 fault is not detected: P1752
Possible fault causes
- Line between pressure regulator 1 and PDK control unit faulty
- Pressure regulator 1 faulty
- PDK control unit faulty
Fault setting conditions
- Actual measured voltage HS1 < 0.05 V
Fault effects
- Power supply switch-off, pressure regulator clutch 1
- Pressure regulator clutch 1, switch-off
- No gear preselection
- No R gear
- Only gears 2, 4 and 6 are possible