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Home >> Hummer >> 2010 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> Passenger Presence System Indicator Circuit Malfunction >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2010 GMC Canyon and 2010 Chevrolet Colorado. 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.
  • Inflatable restraint passenger air bag ON/OFF indicator.
  • Inflatable restraint passenger air bag ON/OFF indicator wiring harness.
  1. Ignition OFF, disconnect the harness connector at the accessory switch.
  2. Test for less than 1.0 ohm between the ground circuit terminal H and ground
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal A and ground.
    • If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance, if the circuit tests normal and the ignition fuse is open, test or replace the accessory switch.
  4. With the right front passenger seat occupied, verify that a test lamp illuminates between the control circuit terminal E and B+.
    • If the test lamp does not illuminate, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the PPS module.
  5. With the right front passenger seat vacant, verify that a test lamp does not illuminate between the control circuit terminal E and B+.
    • If the test lamp illuminates, test the control circuit for a short to ground. If the circuit tests normal, replace the PPS module.
  6. With the right front passenger seat vacant, verify that a test lamp illuminates between the control circuit terminal D and B+.
    • If the test lamp does not illuminate, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the PPS module.
  7. With the right front passenger seat occupied, verify that a test lamp does not illuminate between the control circuit terminal D and B+.
    • If the test lamp illuminates, test the control circuit for a short to ground. If the circuit tests normal, replace the PPS module.
  8. If all circuits test normal, test or replace the accessory switch.
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