felixswift65
RCZ Lighting System Fault
Summary of the thread
A 2010 Peugeot RCZ is experiencing an electrical issue where the lights switch on randomly, with an error code pointing to the headlight switch. Possible causes include a defective headlight switch, a problem within the fuse box, or faulty wiring connections. A suggested solution is to inspect the wiring harness and connections for damage or corrosion, and if the issue persists, seek professional diagnosis and repair at a workshop.
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4 comment(s)
felixswift65 (community.author)
I have visually inspected the wiring harness and connections to the headlight switch, and I did not observe any obvious signs of damage or corrosion. Was the issue immediately apparent upon inspection, or was it more subtle? Perhaps requiring a more thorough examination with a multimeter?
annistorm85
In my case, it wasn't immediately obvious. I only found it after wiggling the wires while the car was running and seeing the lights flicker. It was a very subtle break in one of the wires within the connector itself. At that point, I tried to fix it myself, but it did not work for long. If you are unsure and don't want to spend a lot of time troubleshooting, it might be worth taking it to a workshop to have them diagnose it properly.
felixswift65 (community.author)
Based on your advice, and the fact that the error code specifically points to the headlight switch, I will take it to a trusted workshop for a proper diagnosis and repair. The estimated repair cost of 95€, considering the potential for defective cable or plug connection, seems reasonable. Your insights were invaluable in helping me make this decision.
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PEUGEOT
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RCZ
annistorm85
Sounds frustrating! I had a similar problem with my old Audi A4. Random electrical gremlins are the worst. My dashboard lights were going crazy, and it turned out to be a faulty connection in the headlight switch wiring harness. Did you check the cable and plug connections of the component? If there is a bad connection, you will have issues with the lights. Have you inspected the wiring for any signs of damage or corrosion?