Circuit/System Verification

Verify that DTC B0081 is the only DTC set in the K36 Inflatable Restraint Sensing and Diagnostic Module or K85 Passenger Presence Module.

• If any other DTC is set 

  Diagnose the other DTCs first, refer to Diagnostic Trouble Code (DTC) List - Vehicle .

• If B0081 is the only DTC set 

• If DTC B0081 11 or DTC B0081 4B is set in the K85 Passenger Presence Module 

  The correct calibration was not learned by the K85 Passenger Presence Module. Perform the Passenger Presence System Preload Test procedure. Refer to Passenger Presence System Programming and Setup .

• If neither of these DTCs are set in the K85 Passenger Presence Module 

• If DTC B0081 5A is set in the K85 Passenger Presence Module 

1. Check the connections at the K36 Inflatable Restraint Sensing and Diagnostic Module and K85 Passenger Presence Module.
2. Clear the DTC's and check if DTC B0081 5A sets again in the K85 Passenger Presence Module.
   • If DTC B0081 5A sets again replace the B60 Passenger Presence Sensor.
   • If DTC B0081 5A does not set
3. All OK.

• If none of these DTCs set in the K85 Passenger Presence Module 

• If DTC B0081 3A is set in the K36 Inflatable Restraint Sensing and Diagnostic Module 

1. Either an incorrect replacement K85 Passenger Presence Module or K36 Inflatable Restraint Sensing and Diagnostic Module was placed in this vehicle. Check and make sure the part numbers are correct for each module.
   • If either part number is incorrect replace it with the correct part number.
   • If both part numbers are correct
2. Clear the DTC's and check if DTC B0081 3A sets again in the K36 Inflatable Restraint Sensing and Diagnostic Module.
   • If DTC B0081 3A sets again replace the B60 passenger presence sensor. If the DTC sets again replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
   • If DTC B0081 3A does not set
3. All OK.

• If DTC B0081 3A is not set in the K36 Inflatable Restraint Sensing and Diagnostic Module 

• If DTC B0081 71 is set in the K36 Inflatable Restraint Sensing and Diagnostic Module 

1. Check the connections at the K36 Inflatable Restraint Sensing and Diagnostic Module and K85 Passenger Presence Module.
2. Clear the DTC's and check if DTC B0081 71 sets again in the K36 Inflatable Restraint Sensing and Diagnostic Module.
   • If DTC B0081 71 sets again replace the B60 passenger presence sensor.
   • If DTC B0081 71 does not set
3. All OK.

• If DTC B0081 71 does not set in the K36 Inflatable Restraint Sensing and Diagnostic Module