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Home >> GMC >> 2012 >> Acadia Denali, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0081: Passenger Presence Module (Inflatable Restraint Sensing and Diagnostic Module) >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2015 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • This system is serviced as a kit (seat foam, module and/or sensing mat). Perform a Passenger Presence System Preload procedure whenever a component is replaced. Refer to Passenger Presence System Programming and Setup .
  • Both Inflatable Restraint Sensing and Diagnostic Module and Passenger Presence Module set DTC B0081 but with different symptom bytes. Therefore it is important to identify which module has set the DTC B0081. Use the symptom bytes as a way of identify the correct module to diagnose.
  1. Verify that DTC B1001 is not set in the Inflatable Restraint Sensing and Diagnostic Module.
    • If DTC B1001 is not set in the Inflatable Restraint Sensing and Diagnostic Module 
  2. Verify that DTC B0074, B101D, or B101E is not set in the Passenger Presence Module.
    • If none of these DTCs are set in the Passenger Presence Module 
    3. NOTE:

    The Inflatable Restraint Sensing and Diagnostic Module sets a redundant B0081 00 DTC when the Passenger Presence Module sets a DTC B0081 11 or B0081 4B.

  3. Verify that DTC B0081 00 is not set in the Inflatable Restraint Sensing and Diagnostic Module
    • If DTC B0081 00 is set in the Inflatable Restraint Sensing and Diagnostic Module 

      The Passenger Presence Module has set B0081 11 or a B0081 4B. Refer to B0081 (Passenger Presence Module) for diagnosis.

    • If DTC B0081 00 is not set in the Inflatable Restraint Sensing and Diagnostic Module 
    4. NOTE:

    The Inflatable Restraint Sensing and Diagnostic Module sets a B0081 3A when an incorrect Passenger Presence Module is installed.

  4. Verify that DTC B0081 3A is not set in the Inflatable Restraint Sensing and Diagnostic Module.
    • If DTC B0081 3A is set in the Inflatable Restraint Sensing and Diagnostic Module 

      Replace the K85 Passenger Presence Module.

    • If DTC B0081 3A is not set in the Inflatable Restraint Sensing and Diagnostic Module 
  5. All OK.
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