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 503 (ANTILOCK BRAKE SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESTRACTION CONTROL INDICATOR 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 2011 GMC Canyon and 2011 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the appropriate control switch.
- Test for less than 5 Ξ© between the ground circuit terminal listed below and ground.
- Traction Control Switch terminal A (with NP1)
- I/P Multifunction Switch terminal H (without NP1)
- Ignition ON, verify the scan tool BCM TCS Switch State parameter is Released.
- If not the specified value, test the signal circuit terminal listed below for a short to ground. If the circuit test normal replace the BCM.
- Traction Control Switch terminal C (with NP1)
- I/P Multifunction Switch terminal J (without NP1)
- If not the specified value, test the signal circuit terminal listed below for a short to ground. If the circuit test normal replace the BCM.
- Install a 3A fused jumper wire between the terminals listed below. Verify the scan tool BCM TCS Switch State parameter is Pressed.
- Traction Control Switch signal circuit terminal C and ground circuit terminal A (with NP1).
- I/P Multifunction Switch signal circuit terminal J and ground circuit terminal H (without NP1).
- If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit test normal replace the BCM.
- If all circuits test normal, test or replace the control switch.
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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.