SAAB WIS ONLINE

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) Limp home

  P1315 00


CDM Not Powered

Fault symptom

Fault indicator lamp (for further information see WIS Fault diagnosis, general)

Limp home

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Engine running.
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:

None
P1315

System reaction to a fault:

Torque limited to max. 170Nm.
None

OK report:

Combustion signals from one of the cylinders detected from CDM.
When ignition and fuel injection are synchronised.

Fault handling:

Type III
(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:

Test value:
Combustion Signal cyl 1+3
Combustion Signal cyl 2+4
Camshaft Position Syncronized

(See also description of readings/activations in diagnostic tool)