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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Supplemental Inflatable Restraints) >> Diagnostic Information and Procedures >> DTC B0016, B0017, or B0018 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
  1. With the ignition OFF, disconnect I/P module in-line connector. Refer to Inflatable Restraint I/P Module Replacement  for location of connector.
  2. Inspect the component and wiring harness sides of the in-line connector for the I/P module for damage or corrosion.
    • If the in-line connector for the I/P module is damaged, the I/P module must be replaced.
    • If the I/P module wiring harness side connector is damaged, replace the harness side of the connector.
  3. Use J 38715-100 adapter to connect the J 38715-A SIR Driver/Passenger Load Tool to the harness side of the I/P module in-line wiring harness connector. Use the PASSENGER INFLATOR connector located on the load tool.
  4. With the ignition ON, use a scan tool to observe the SIR DTC display. Verify DTC B0016, B0017, or B0018 are set in history.
    • If DTC B0016, B0017, or B0018 is history replace the I/P module.
  5. With the ignition OFF, disconnect and remove the J 38715-A and adapter.
  6. Remove the inflatable restraint sensing and diagnostic module (SDM) connector. Inspect the SDM connector for damage or corrosion that may cause a malfunction in the I/P module high and/or low circuits. Refer to SDM replacement in Repair Instructions for connector location.
    • If damage or corrosion is found make the appropriate repair.
  7. Test the high and low circuits between the SDM and I/P module for a short to voltage, short to ground, or open/low resistance.
    • If circuits test good then replace the SDM.
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