P1344

P1344 00

Ionization Signal or Trigg, Coil 4 to CDM, Open/Short







Fault symptom
Check Engine

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Engine running.

Fault criteria:
No combustion signal detected from a cylinder. Camshaft position could still be synchronized.

Dependent
No fault in the Combustion Detection Module, P1315.

System reaction to a fault:
None

OK report:
Ignition synchronized.

Fault handling:
Type III
(See Description of On-Board Diagnostics/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:
Test value:
- Combustion Signal cyl 2+4

Activation:
- Ignition Coil Cyl 4