P1676

Read the instructions below then start the fault diagnostic procedure.

Symptom: Engine misfires or will not start.

P1676

Fault symptoms

•	Engine misfires or will not start.

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. Main relay voltage above 6 V.

Fault criteria:

-	Voltage on one of the outputs below 2V if the output is not active or exceeding 2V if the output is active. Fault criteria fulfilled after 2 s.

Dependents:

-

None.

System reaction to a fault:

-	Closed loop control system blocked.

OK report:

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

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

-	Type III. CHECK ENGINE does not go on.

Diagnostic help

Fault diagnosis concerns electrical faults in connecting cables or in one of the valves.

Diagnostic tool functions related to this fault are:

•	Activation of outputs for all valves.

See also the description of activating functions 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.