Diagnostic Test

1) CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM)
NOTE: Ensure the battery is fully charged.

Turn the ignition on.

With the scan tool, read Occupant Classification Module (OCM) DTC.

Does the scan tool display any active DTC relating to internal faults, ignition faults, or battery faults?

Yes
1. Diagnose and repair the DTC. Refer to DIAGNOSTIC CODE INDEX for a complete list of symptoms. for a complete list of symptoms.
No
1. Go To 2).
2) VERIFY THAT B1B91-DRIVER SEAT TRACK POSITION SENSOR CONFIGURATION MISMATCH IS ACTIVE
With the scan tool, erase OCM DTC.

Turn the ignition off, wait 10 seconds and then turn the ignition on.

Wait 2 minutes, and then with the scan tool, read OCM DTC.

Does the scan tool display active: B1B91-DRIVER SEAT TRACK POSITION SENSOR CONFIGURATION MISMATCH?

Yes
1. Go To 3).
No
1. Perform *OCM SYSTEM VERIFICATION TEST .
3) VERIFY WIRING
Turn the ignition off.

Inspect the driver and passenger seat wiring for Seat Position Sensors.

Are Seat Position Sensor(s) present?

Yes

WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
1. Replace the OCM in accordance with the Service Information.
2. Perform *OCM SYSTEM VERIFICATION TEST .
No
1. Perform *OCM SYSTEM VERIFICATION TEST .