P2309

P2309 00

Ignition Coil Trig Cylinder 4 Circuit, Short To Ground







Fault symptom
Check Engine
Flickering pressure indicator in MIU.
Misfiring
Jerky movements.
Performance loss.

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Engine running.

Fault criteria:
Output voltage below 2 V when the control module is not grounding.
The condition exists for more than 1 s.

Dependent
None

System reaction to a fault:
Fuel to the injector in question is cut off.
Closed loop is blocked.
Fuel adaption is blocked and reset.

OK report:
Fault criteria NOT fulfilled for 2 s.

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 ignition coil connecting leads.

Functions in the diagnostic tool related to the fault:
Test value:
- Combustion Signal cyl 2+4

Activation:
- Ignition Coil Cyl 4