B1BA8

B1BA8-OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED

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 the 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. Occupant Classification Module (OCM) System Verification Test

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 DTCs.

Q: Does the scan tool display any active DTCs?

YES: - B1BA8 DTC Returned. Go To 2
YES: - But Other DTCs Present. Diagnose and repair the DTCs. Refer to complete list of symptoms.
NO: - No Active DTCs Present. Perform the OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST. Occupant Classification Module (OCM) System Verification Test
Diagnostic Test

2. Perform the OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST

Verify that the passenger seat is empty.

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.

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

WARNING: TO AVOID PERSONAL INJURY OR DEATH, 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. Occupant Classification Module (OCM) System Verification Test

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 DTCs.

Q: Does the scan tool display any active DTCs?

YES: - B1BA8 DTC Returned. Perform the Diagnosis/Checkout Procedure For Seat Weight Sensors.
YES: - But Other DTCs Present. Diagnose and repair the DTCs. Refer to complete list of symptoms.
NO: - No Active DTCs Present. Perform the OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST. Occupant Classification Module (OCM) System Verification Test