Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** only rear lights dim or front also? Thanks.
Do brake lights seem dim too?
Access wiring going to brake light, back probe connector with paperclip so you can test power/ground with light still plugged in. It sounds like the multifunction switch/turn signal switch has failed which can cause low voltage to all of the lights. The white wire at brake lights should have battery voltage when pressing brakes and black wire should have good ground. Test voltage back probed at C201 48 cavity connector below the steering column terminal A1 White input from the brake switch, terminal E6 Dark Green wire right brake output, E7 Yellow wire left brake output. Should be B+ when the brake pedal is pressed, brake switch is closed. If the terminal A1 is B+, E6 and E7 are less then battery voltage replace the turn signal/multifunction switch. Let me know how it goes or if you run into questions, thanks.
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