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 235 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC 4061-4065CIRCUIT/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 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
- PPS module
- SDM module
- PPS wiring harness connector
- SDM wiring harness connector
- Ignition OFF, disconnect the harness connector at the PPS and the SDM.
- Test for less than 1 V between the occupant sensor serial data circuit terminal 60 and ground.
- If greater than the specified range, test the serial data circuit for a short to voltage.
- Test for infinite resistance between the occupant sensor serial data circuit terminal 60 and ground.
- If less than the specified value, test the serial data circuit for a short to ground.
- Test for less than 1 Ξ© between the SDM occupant sensor serial data circuit terminal 60 and the PPS occupant sensor serial data circuit terminal 1.
- If greater than the specified range, test the serial data circuit for an open/high resistance.
- Reconnect the harness connectors.
- Ignition ON, clear DTCs, refer to Passenger Presence System Displaying Code Procedure (Base)Β .
- If DTC B1000 is set in the SDM, replace the SDM.
- Verify that DTC 4061-4065 is not set.
- If DTC is still set, replace the PPS module.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.