Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Test
- VERIFY ACTIVE DTC NOTE:
Make sure that the battery is fully charged.
- Turn the ignition off, wait ten seconds and turn ignition on.
- With the scan tool, read the OCM DTC.
Did the scan tool display active or stored B2212-OCCUPANT CLASSIFICATION MODULE INTERNAL DTC?
Yes
- Go To 2.
No
- Perform the OCS VERIFICATION TEST. Refer to OCS VERIFICATION TEST .
- RE-ZERO OCM SEAT WEIGHT SENSORS
- Verify that the passenger seat is empty.NOTE:
Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion.
- With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows.
- With the scan tool, read the OCM DTC.
Does the scan tool display any active B2212-OCCUPANT CLASSIFICATION MODULE INTERNAL DTC?
Yes
- Go To 3.
Yes - Other DTCs Present
- Diagnose and repair the DTC. for a complete list of DTCs. Refer to Diagnosis and Testing .
No
- Perform the OCS VERIFICATION TEST. Refer to OCS VERIFICATION TEST .
- Verify that the passenger seat is empty.
- VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.