PSG16 / P2135 FA
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Engine speed cannot be regulated.
Idling speed set to 1400 rpm.
Performance loss.
Pedal Position Sensor Circuit. Plausibility Fault Between Circuit 1 and 2.
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Engine speed cannot be regulated.
Idling speed set to 1400 rpm.
Performance loss.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| NONE of the following DTCs must be detected: |
Fault criteria:
| Differential voltage more than 1.0V at max pedal position between pedal position sensors 1 and 2 (pedal position sensor 2: voltage x 2) for more than 0.5 seconds. |
Dependent:
System reaction to a fault:
| Limp Home, engine speed limitation. |
Checking the wiring harness
| • | Faults in the control module female connector can be the cause of the DTC. Check the connector with respect to oxidation, depressed pins and pin clamping force. |
| • | Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force. |
Diagnostic help
Diagnosis regards:
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
