P1671

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE.

P1671

Fault symptom

•	CHECK ENGINE.

On-Board Diagnostics

Type of diagnosis:

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

Enable criteria:

-	Engine running. Main relay voltage exceeding 10V. Output is active.

Fault criteria:

-	Output voltage exceeding 2V for more than 1 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 “Fault diagnosis, general” for more information.)

-

Type III.

Diagnostic help

Fault diagnosis concerns electrical faults in connecting cables or in the relay.

Checking the wiring

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.

See .