FCM SIACM Run/Start Driver Open (Active)

Tests 1 - 2:

Tests 3 - 5:

Tests 6 - 9:

Tests 10 - 11:

SYMPTOM
FCM, SIACM RUN-START DRIVER OPEN - ACTIVE

WHEN MONITORED
When the ignition is turned OFF, the microprocessor controlled transistor (high side driver) places a diagnostic voltage on the SIACM Run-Start circuit for 60 seconds. An open High Side Driver (HSD) circuit voltage is between 2.4 and 5.0 volts.

SET CONDITION
This code will set within 10 second, if the microprocessor senses 2.4 to 5.0 volts on the HSD. Note: the diagnostic voltage will only last for 60 seconds after the ignition is turned OFF.

POSSIBLE CAUSES
- Check battery voltage
- FCM, SIACM run-start DR over voltage
- FCM, SIACM run-start open test
- FCM, SIACM run-start open test
- FCM, SIACM run-start short test
- IPM, SIACM run-start open test
- RSIACM, run-start open test
- Run-start open test
- SIACM run-start driver circuit open
- IPM, SIACM run-start short test
- LSIACM, SIACM run-start short test
- Right SIACM run-start driver circuit open
- SIACM run-start driver circuit short
- Right SIACM, SIACM run-start short test