SIACM Run/Start Driver Open

Test 1 - 2:

Test 3 - 4:

Test 5 - 8:

Test 9 - 10:

Test 11 - 13:

Test 14 - 18:

Test 19 - 20:

SYMPTOM
SIACM RUN - START DRIVER OPEN

TEST NOTE
This symptom is diagnosed using the test RUN - START CIRCUIT TEST.

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
- 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
- Left side impact airbag control module
- Right side impact airbag control module
- IPM, ORC run - start short
- ORC run - start circuit short
- ACM, ORC run - start driver circuit short
- FCM, SIACM run - start open
- RIGHT SIACM and SIACM run - start circuit open
- FCM, SIACM run - start open
- FCM, SIACM run - start circuit short
- IPM, SIACM run - start circuit open
- RSIACM, run - start circuit open
- SIACM run - start circuit open
- IPM, SIACM run - start circuit short
- LSIACM, SIACM run - start circuit short
- Left SIACM and SIACM run - start circuit open
- High battery voltage
- FCM, run - start over voltage
- Right SIACM, SIACM run - start circuit short
- SIACM run - start circuit short
- Stored code or intermittent condition
- Active code present