T8 / P1315 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
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CDM Not Powered
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
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On-board diagnosis
Type of diagnosis:
Enable criteria:
| Engine load exceeds 10 mg/c. |
| Engine speed exceeds 400 rpm. |
Fault criteria:
| No combustion signals from any of the cylinders detected from CDM during 50 combustions. |
Dependent:
System reaction to a fault:
| Torque limited to max. 170Nm. |
OK report:
| Combustion signals from one of the cylinders detected from CDM. |
| When ignition and fuel injection are synchronised. |
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 internal fault in the CDM. |
| Electrical fault in the connecting leads or in the CDM. |
Functions in the diagnostic tool related to the fault:
| • | Combustion Signal cyl 1+3 |
| • | Combustion Signal cyl 2+4 |
| • | Camshaft Position Syncronized |
| (See also description of readings/activations in diagnostic tool) |
