2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 580
Activation Oil pump
INFORMATION
- The oil pressure-regulating valve is controlled via a PWM signal.
- The PWM signal depends, among other things, on the ambient conditions (temperatures, off time, etc), operating point of the engine (rpm,
load, oil temperature), measured oil pressure (at the oil pressure sensor)...
- A fault is detected if the PWM signal is outside a defined range for > 8 seconds.
Diagnostic conditions
- Engine running
Possible fault causes
- Engine oil pressure too low (Oil level, Oil quality, Oil dilution, Soiling Oil circuit, Oil circuit Faulty)
- Engine oil pressure too high (Oil quality, Oil thickening, Soiling Oil circuit, Oil circuit Faulty)
- Oil pressure sensor Faulty
- Oil pressure control valve Faulty
- Oil pump Faulty
P1540
P1540
Diagnosis information - Control unit DME (DFI)
Throttle adjusting unit
Diagnostic conditions
- Vehicle is stationary
- Coolant temperature 5 ... 100 锟斤拷C (锟斤拷F)
- Intake air temperature 5 ... 40 锟斤拷C (锟斤拷F)
- Accelerator pedal not actuated (0 %)
- Ignition off
- then Switch on ignition > 60 Second(s) at Engine off
Possible fault causes
- Adaptation was not performed (successfully).
- Throttle adjusting unit Faulty
P1541
P1541
Diagnosis information - Control unit DME (DFI)
Throttle adjusting unit
Diagnostic conditions
- Vehicle is stationary
- Coolant temperature 5 ... 100 锟斤拷C (锟斤拷F)
- Intake air temperature 5 ... 40 锟斤拷C (锟斤拷F)
- Accelerator pedal not actuated (0 %)
- Ignition off
- then Switch on ignition > 60 Second(s) at Engine off
Possible fault causes
- Adaptation was not performed (successfully).
- Throttle adjusting unit Faulty
P1542
P1542
Diagnosis information - Control unit DME (DFI)
Throttle adjusting unit - start test
Diagnostic conditions
- Throttle adjusting unit taught
- Switch on ignition, then
- Switch off ignition, for > 1 min
- Switch on ignition
Possible fault causes
- Throttle adjusting unit Faulty
