Seat Occupant Classification Module - Air Bag: Testing and Inspection

*OCM REZERO

Diagnostic Test

1. VERIFY POST DEPLOYMENT REPAIRS
NOTE: Ensure that the battery is fully charged.

NOTE: Verify that the scan tool has the latest software update before proceeding with this test.

NOTE: If any airbags have been deployed, make sure all components related to the deployment have been inspected or replaced.

NOTE: Correct all active ORC DTC except the Interrogate OCM, and Driver and Passenger STPS DTC in OCM DTC, before performing this procedure.

NOTE: Correct all active OCM DTC except the B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED, and B1BA8-OCM OUT OF CALIBRATION/NOT CALIBRATED DTC, before performing this procedure.

NOTE: Make sure that the passenger seat is empty and in the full rearward position before performing this procedure.

NOTE: Make sure the vehicle is setting level and the interior is at room temperature.

NOTE: Make sure the Passenger Seat Belt is unbuckled and completely retracted.



Continue

- Go To 2

2. PERFORM THE OCS VERIFICATION SYSTEM TEST
With the scan tool in OCM, select MISC. FUNCTION and OCM REZERO.
Follow the instructions on the Scan Tool to complete the test.
Select the OCM REZERO procedure results from the list below.


Rezero Passed and Completed

- The OCM has passed the Rezero test and the repair is complete.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST. Verification Tests.

OCM Rezero Failed

- Go To 3

3. REZERO TEST RESULTS
With the scan tool, read the active OCM DTC.
Does the scan tool display any active trouble codes except B1BA7 and B1BA8 DTC?

Yes

- Diagnose and repair the DTC(s).

No

- Go To 4

4. PERFORM SECOND OCS REZERO TEST
With the scan tool in OCM, select MISC. FUNCTION and OCM REZERO.
Follow the instructions on the Scan Tool to complete the test.
Select the OCM REZERO procedure results from the list below.
Does the scan tool display any active trouble codes except B1BA7 and B1BA8 DTC?

Rezero Passed and Completed

- The OCM has passed the Rezero test and the repair is complete.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST. Verification Tests.

OCM Rezero Failed

- Go To 5

5. REZERO TEST RESULTS
With the scan tool, read the active OCM DTC.
Does the scan tool display any active trouble codes?

Yes

- Diagnose and repair the DTC(s).

No

- Go To 6

6. PERFORM THIRD OCS REZERO TEST
With the scan tool in OCM, select MISC. FUNCTION and OCM REZERO.
Follow the instructions on the Scan Tool to complete the test.
Select the OCM REZERO procedure results from the list below.


Rezero Passed and Completed

- The OCM has passed the Rezero test and the repair is complete.
- Perform *RESTRAINTS SYSTEM VERIFICATION TEST. Verification Tests.

OCM Rezero Failed

WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

WARNING: If the Occupant Classification Module (OCM) is dropped at any time, it must be replaced. Failure to take the proper precautions could result in accidental airbag deployment and serious or fatal injury.

CAUTION: Disconnecting or connecting the OCM connectors with the battery connected will permanently damage the OCM.

- Replace the OCM.
- Perform *OCM REZERO. Testing and Inspection