FCM ORC Run/Start Driver Shorted to Ground (Stored)

Test 1:

SYMPTOM
FCM, ORC RUN-START DRIVER SHORT TO GROUND - STORED

TEST NOTE
This symptom is diagnosed using the test FCM, ORC RUN ONLY DRIVER OPEN - STORED.

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) circuit for short to ground when the ignition is in the Run or Start position.

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

POSSIBLE CAUSES
- Checking for active front control module DTCS
- Stored code present