Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 10 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESPASSENGER PRESENCE SYSTEM INDICATOR CIRCUIT MALFUNCTIONCIRCUIT/SYSTEM TESTING
2008 Chevrolet HHR LT, 2.4 P, Automatic
Circuit/System Testing
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- Passenger AIR BAG ON/OFF indicator
- PPS module
- Passenger AIR BAG ON/OFF indicator wiring harness connector
- PPS wiring harness connector
- Ignition OFF, disconnect the harness connector at the inflatable restraint passenger air bag on/off indicator.
- Test for less than 1 ohm between the ground circuit terminal 2 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 4 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 inflatable restraint passenger air bag on/off indicator.
- With the right front passenger seat occupied, verify that a test lamp illuminates between the control circuit terminal 1 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.
- With the right front passenger seat vacant, verify that a test lamp does not illuminate between the control circuit terminal 1 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.
- With the right front passenger seat vacant, verify that a test lamp illuminates between the control circuit terminal 3 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.
- With the right front passenger seat occupied, verify that a test lamp does not illuminate between the control circuit terminal 3 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.
- If all circuits test normal, test or replace the inflatable restraint passenger air bag on/off indicator.
IMPORTANT:
When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.