Question about Chevrolet HHR
Try switching the headlights from Low Beam to High Beam when they cut off. This is to find out if the problem is on the Low or High Beam Circuits. They both have separate fuses and relays and are hot at all times, just controlled by the headlamp switch and the BCM. If both circuits cut off, check the Black Wire (Ground - ) on both head lights. 80% of the electrical problems on an automobile are due to a faulty Ground. Check for tight connections and broken wires.
Check the following Fuses/Relays on the engine compartment fuse box : # 63 - 10A, # 65 - 10A, # 66 - 10A, # 68 - 10A and # 31 - 10A. and Relays #71 Low Beam, #72 High Beam and #28 DRL. If all the above checks out OK, then your BCM could be defective. USE THIS HEADLIGHTS WIRING DIAGRAM TO TROUBLESHOOT THE CIRCUIT.
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Posted on Oct 14, 2010
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Posted on Jan 02, 2017
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