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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1908 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> Passenger Presence System Indicator Circuit Malfunction >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 Saturn Vue. 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.
  • Driver information display assembly.
  • Driver information display assembly wiring harness.
  1. Ignition OFF, disconnect the harness connector at the driver information display.
  2. Ignition ON, verify a test lamp illuminates between the ignition circuit terminal 9 and ground.
    • If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
  3. Connect a test lamp between the control circuit terminal 13 and the ignition circuit terminal 9.
  4. With the passenger seat occupied and unoccupied the test lamp should switch states within 5 seconds.
    • If the test lamp does not change state, test the control circuit for an open, short to ground, or short to voltage. If all circuits test normal replace the IPC.
  5. Connect a test lamp between the control circuit terminal 12 and the ignition circuit terminal 9.
  6. With the passenger seat occupied and unoccupied the test lamp should switch states within 5 seconds.
    • If the test lamp does not change state, test the control circuit for an open, short to ground, or short to voltage. If all circuits test normal replace the IPC.
  7. If all circuits test normal, replace the driver information display.
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