ORC Run - Start Driver Over Volt

Test 1 - 4:

Test 5 - 8:

Test 9 - 12:

Test 13:

SYMPTOM
ORC RUN - START DRIVER OVER VOLT

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

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) battery voltage when the ignition is in the Run or Start position.

SET CONDITION
The code will set if the microprocessor senses HSD battery voltage is over 30 volts.

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