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.
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.
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. |
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) |
