ORC Run Only Driver Over Current

Test 1 - 4:

Test 5 - 8:

Test 9 - 11:

Test 2:

SYMPTOM
ORC RUN ONLY DRIVER OVER CURRENT

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

WHEN MONITORED
The FCM uses a microprocessor controlled transistor (high side driver) to supply power to the ORC. The microprocessor monitors the high side driver (HSD) internal temperature when the ignition is in the Run position.

SET CONDITION
The code will set within 1 second, if the microprocessor senses high HSD internal temperature. The high temperature is caused by over current.

POSSIBLE CAUSES
- ACM, loss of ignition run only
- ACM, ORC run only circuit open
- FCM, ORC run only circuit open
- IPM, ORC run only circuit open
- ORC run only driver circuit open
- FCM, ORC run only circuit short
- IPM, ORC run only circuit short
- ACM, ORC run only circuit short
- ORC run only circuit short
- High battery voltage
- ORC run only over voltage
- Stored code or intermittent condition
- Active code present