Fault Conditions

P1676

Injector Circuit. Open/Short to Ground or B+.







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 2 V if the output is not active or exceeding 2 V if the output is active. Fault criteria fulfilled after 2 s.

Dependents:
- None.

System reaction to a fault:
- Closed loop is blocked.

OK report:
- Enable criteria fulfilled and fault criteria not fulfilled within 60 s.

Fault handling: (For more information, )

- Type III. CHECK ENGINE does not go on.

Diagnostic help
Fault diagnosis concerns an electrical fault in connecting leads or in any of the injectors.

Functions in the diagnostic tool related to the fault:
- Activate outputs for all injectors.

For more information,

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.

Proceed to Diagnostic Procedures Checking the Fuse