T8 / P0325 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Poor engine torque.
Knock detection circuit, no activity
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Poor engine torque.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Coolant temperature exceeds 60°C. |
| Accelerator pedal depressed. |
Fault criteria:
| No pulses on the knock lead from CDM during 6000 combustions. |
Dependent:
| No fault in the Combustion Detection Module, P1315. |
System reaction to a fault:
| Torque limited to max. 170Nm. |
OK report:
| Pulse on the knock lead from CDM during 6000 combustions. |
Fault handling:
| (See section Fault handling III, "Other emission-related components and functions" for more information.) |
Checking the wiring harness
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:
| Electrical fault in the connecting leads or in the CDM. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
