B1BA8

B1BA8-OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED





- When Monitored:

While the CAN bus ignition status is IGN_RUN or signal not available.

- Set Condition:

This DTC will set if the module has initiated a re-zero and did not successfully complete the system verification, a system verification routine has been aborted or a update option table from flash routine has been completed.

Diagnostic Test

1. PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST

Verify that the passenger seat is empty.

NOTE: Failure to follow the test instructions or aborting the test will cause 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, select 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 is complete, proceed as follows.

With the scan tool, read OCM DTC.

Does the scan tool display any active DTC?

Yes

- Go To 2

Yes

- But Other DTC Present?
- Diagnose and repair the DTC.

No

- No Active DTC Present?
- Perform *OCM SYSTEM VERIFICATION TEST. Occupant Classification Module (OCM) System Verification Test

Diagnostic Test

2. PERFORM SENSOR TORQUE TEST

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

Verify that the passenger seat is empty.

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

Verify that all of the Seat Weight Sensor mounting screws are tightened to torque specification.

WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.

NOTE: Failure to follow the test instructions or aborting the test will cause 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, select 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 is complete, proceed as follows.

With the scan tool, read OCM DTC.

Does the scan tool display any active DTC?

Yes

- Perform the *Diagnosis/Checkout Procedure For Seat Weight Sensors. Testing and Inspection

Yes

- But Other DTC Present?
- Diagnose and repair the DTC.

No

- No Active DTC Present?
- Perform *OCM SYSTEM VERIFICATION TEST. Occupant Classification Module (OCM) System Verification Test