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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Inflatable Restraint System >> Diagnostic Information and Procedures >> DTC B0081: Passenger Presence Module >> Circuit/System Verification

Circuit/System Verification

NOTE: This system allows you to service each component separately (module and sensor/sensing mat). Perform a passenger presence system rezero procedure whenever a component is replaced.
NOTE: Both the 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. Use the table below in identifying specific module DTC B0081 application and symptom byte that sets with it.
  1. Verify that DTC B1001 is not set in the Inflatable Restraint Sensing and Diagnostic Module.
    • If DTC B1001 does 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. Verify that DTC B0081 00 is not set in the Inflatable Restraint Sensing and Diagnostic Module
    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 42.
    • If DTC B0081 00 is not set 
  4. Verify that DTC B0081 3A is not set in the Inflatable Restraint Sensing and Diagnostic Module.
    NOTE: The Inflatable Restraint Sensing and Diagnostic Module sets a B0081 3A when an incorrect Passenger Presence Module is installed.
    • If DTC B0081 3A is set 

      Replace the K85 Passenger Presence Module.

    • If DTC B0081 3A is not set 
  5. Verify that DTC B0081 71 is not set in the Inflatable Restraint Sensing and Diagnostic Module.
    • If DTC B0081 71 is set 

      Replace the B60 Passenger Presence Sensor.

    • If DTC B0081 71 is not set 
  6. All OK.
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