P0337

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE. Possible misfiring before DTC is generated. The engine will not start with permanent fault.

P0337

Fault symptoms

•	CHECK ENGINE.

•	Possible misfiring before DTC is generated.

•	The engine will not start with permanent fault.

On-Board Diagnostics

Type of diagnosis:

-	Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria:

-	Ignition switch in ON position. Ignition key in start position. Main relay voltage drops by more than 0.8 V. The pressure in the intake manifold decreases by more than 3 kPa.

Fault criteria:

-	No voltage from crankshaft sensor for 4 s.

Dependents:

-

None.

System reaction to a fault:

-

None.

OK report:

-	Enable criteria for P0336 fulfilled and fault criteria not fulfilled within 60 s.

Fault handling: (See section “Fault diagnosis, general” for more information.)

-

Type III.

Diagnostic help

Fault diagnosis concerns electrical faults in connected leads or in the sensor.

Diagnostic tool functions related to this fault are:

•	Diagnostic status for the diagnosis.

•	Engine speed, unit rpm

See also the description of test values under ”Fault diagnosis, general” for more information.

Check the wiring

Jiggle the leads and in-line connectors at various points and in different directions to detect any intermittent breaks or short circuits in the wiring. Observe the multimeter, test lamp or diagnostic tool while doing this.