P1653

Read the instructions below then start the fault diagnostic procedure.

Symptom: Engine fails to start. CHECK ENGINE. Misfiring can occur before trouble code is generated.

P1653

Fault symptoms

•	Engine fails to start.

•	CHECK ENGINE.

•	Misfiring can occur before trouble code is generated.

On-Board Diagnostics

Type of diagnosis:

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

Enable criteria:

-	Crankshaft rotating. Output active.

Fault criteria:

-	Output voltage exceeding 2V for more than 0.5 s.

Dependents:

-

None.

System reaction to a fault:

-

None.

OK report:

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

Fault handling: (See section Fault handling III, other emission-related components and functions for more information.)

-

Type III.

Diagnostic help

Fault diagnosis concerns electrical fault in connecting leads or in the relay.

Functions in the diagnostic tool related to the fault:

•	Activation of output for main relay.

See also description on activating under "Activate" menu 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.

See P1652 .