PSG16 / P0652 03
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Idling speed set to 1400 rpm.
Rpm cannot be controlled.
Performance loss.
Voltage Supply Group 2. Short to Ground.
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Idling speed set to 1400 rpm.
Rpm cannot be controlled.
Performance loss.
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
| Voltage is lower than 4,6 V for more than 0,2 s. |
System reaction to a fault:
| Limp Home, engine torque limitation. |
| The control module uses a substitute value for air mass of 800 mg/combustion and an atmospheric pressure of 70 kPa. |
OK report:
| Fault criteria NOT fulfilled for 0.2 s. |
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:
