B1BA7

B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED

B1BA7-Occupant Classification System Verification Required:

WHEN MONITORED
With the CAN ignition status as IGN_RUN, the module tries to detect potentially damaging events and monitors the CAN Bus for the X Impact messages (crash event causing one or more airbag or pretensioner to deploy) or upon detecting an Offset Event (if equipped).

SET CONDITION
This DTC will set if the module detects a potentially damaging event or the X Impact messages from the CAN Bus input.

POSSIBLE CAUSES
- B1BA7-OCS verification required DTC active

Diagnostic Test

1. CHECK FOR OCCUPANT CLASSIFICATION MODULE (OCM) ACTIVE DTCs:




- ACTIVE INTERNAL FAULTS
- IGNITION FAULTS
- BATTERY FAULT
- SEAT WEIGHT SENSOR DTC's

NOTE:
- Ensure the battery is fully charged.
- When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.

Turn the ignition on, then off, and then on again.
With the scan tool, read Occupant Classification Module (OCM) DTCs.

Q: Does the scan tool display any active DTCs listed above?

YES: Diagnose and repair the DTCs. Refer to the Table of Contents for a complete list of symptoms.
NO: Go To 2

2. VERIFY THAT DTC B1BA7 OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED IS ACTIVE




With the scan tool, read OCM DTCs.

Q: Does the scan tool display active: B1BA7 OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED?

YES: Go To 3
NO: Go To 4

3. PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST




Verify that the passenger seat is empty.
Verify that all of the Seat Weight Sensor mounting screws are torqued to specification.

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; & 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 DTCs.

Q: Does the scan tool display active: B1BA7 OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED?

YES: Perform the *Diagnosis/Checkout Procedure For Seat Weight Sensors. Perform OCS VERIFICATION TEST - VER 1. OCS Verification Test
NO: But Other DTCs Present Diagnose and repair the DTCs. Refer to the Table of Contents for a complete list of symptoms.
NO: Active DTCs Present Perform OCS VERIFICATION TEST - VER 1. OCS Verification Test

4. CHECK FOR ACTIVE DTC B1BA8 OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED




With the scan tool, read OCM DTCs.

Q: Does the scan tool display active: B1BA8 OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED?

YES: Diagnose and repair the DTC. Refer to the Table of Contents for a complete list of symptoms.
NO: Perform OCS VERIFICATION TEST - VER 1. OCS Verification Test