ORC Run Only Driver Shorted to Ground

Test 1 - 4:

Test 5 - 6:

Test 7:

SYMPTOM
ORC RUN ONLY DRIVER SHORT TO GROUND

TEST NOTE
This symptom is diagnosed using the test LOSS OF IGNITION RUN ONLY

WHEN MONITORED
The IPM uses a microprocessor controlled transistor (high side driver) to supply power to the ACM. The microprocessor monitors for short to ground when the ignition is in the Run position.

SET CONDITION
The code will set within 1 second.

POSSIBLE CAUSES
- ACM, loss of ignition run only
- ACM, ORC run only circuit open
- IPM, ORC run only driver circuit open
- IPM, ORC run only circuit short to ground
- ACM, ORC run only circuit short to ground
- ORC run only circuit short to ground
- Stored code or intermittent condition
- Active code present