LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0081 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector:
    • The PPS module
    • The SDM module
    • The PPS module harness connector
    • The SDM wiring harness connector
  1. Ignition ON, the PPS should turn ON the PPS ON/OFF indicators. Verify the PPS illuminates the PPS ON/OFF indicators.
  2. Ignition ON, use the scan tool. Go to the PPS menu, then retrieve the DTCs. Verify no PPS DTCs are set.
  3. Check to see if the PPS was replaced. Verify that the correct PPS was installed into the vehicle.
    • If the wrong PPS was installed, then replace the correct PPS.
  4. Ignition OFF, disconnect the PPS module connector. Refer to PPS Replacement  in repair instructions for connector location.
  5. Remove the SDM connector. Refer to SDM Replacement  in repair instructions for connector location.
  6. Test the GMLAN serial data circuit for an open or high resistance between the PPS and SDM connector. Verify no open or high resistance exists.
    • If any of the above conditions are found, make the appropriate repair.
  7. Test the PPS ignition 1 voltage circuit for a short to ground, a high resistance, or an open. Verify no short to ground, a high resistance, or an open exists.
    • If any of the above conditions are found, make the appropriate repair.
  8. Replace the PPS.
  9. Ignition ON, use the scan tool to clear the DTCs then recheck for DTC B0081. Verify that the DTC does not reset.
    • If DTC B0081 was current, replace the SDM.
scientia non olet · About LEMON Manuals