B1BBA-PASSENGER SEAT WEIGHT SENSOR SUPPLY CIRCUIT

For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    While the CAN bus ignition status is in IGN_RUN, the module checks the sensor supply.

  • Set Condition:

    If the OCM detects that the sensor supply shorted.

    NOTE: A shorted supply circuit will cause a 'NO RESPONSE FROM OCM” condition.


Possible Causes
  
OCS SUPPLY CIRCUIT SHORTED
  
OCCUPANT CLASSIFICATION MODULE (OCM)
  



Diagnostic Test

1.VERIFY THAT B1BBA-PASSENGER SEAT WEIGHT SENSOR SUPPLY CIRCUIT DTC IS ACTIVE



Does the scan tool display active: B1BBA-PASSENGER SEAT WEIGHT SENSOR SUPPLY CIRCUIT?

Yes
  • Replace the OCM in accordance with the Service Information.
  • Perform the B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED diagnostic test.


No
  • Go To 2

2.INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS

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




Are any of these conditions present?

Yes

  • NOTE: Do not attempt to repair the Seat Harness. Replace the Seat Harness if the condition inspecting or testing for is present in the Seat Harness.

  • Replace the Passenger Seat Harness in accordance with the Service Information.
  • Perform *OCM SYSTEM VERIFICATION TEST.


No
  • Go To 3

3.TEST FOR INTERMITTENT CONDITION



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






WARNING: To avoid personal injury or death, turn the ignition on, then reconnect the battery.



WARNING: To avoid personal injury or death, maintain a safe distance from all airbags while performing the following steps.






Are any ACTIVE DTCs present?

Yes
  • Select the appropriate symptom from Symptom List.


No
  • No problem found at this time. Perform the Occupant Classification Module System Verification Test in this Section. Erase all codes before returning vehicle to customer.