lena_meier4
Corolla Lighting Fault
Summary of the thread
A 2004 Toyota Corolla is experiencing a lighting fault where lights turn on unexpectedly, dashboard lights flicker, and tail lights are dim. The issue is traced to a generic error code related to the lighting circuit. A suggestion to check the headlight switch and its connections leads to the discovery of a faulty connection at the switch, which is resolved by a professional repair.
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4 comment(s)
lena_meier4 (community.author)
Thanks for the quick reply! No, the error code is pretty generic, just says 'lighting fault'. How would I go about checking the switch itself? Is it something I can do myself, or does it require special tools? I am not the most experienced when it comes to electrical problems.
eva_moeller34
Given the generic error code and your lack of experience with electrics, I'd advise against dismantling the switch. In my case, it turned out to be a defective cable or plug connection to the switch itself. For peace of mind and to avoid further complications, it's probably best to have a workshop take a look at it. They'll have the proper diagnostic tools to pinpoint the exact problem.
lena_meier4 (community.author)
Okay, thanks for the advice. Took it to a local shop, and you were spot on. It was a faulty connection at the switch. Cost me 95€ to get it sorted. Appreciate the help!
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TOYOTA
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COROLLA
eva_moeller34
I had a similar issue with my Corolla, although I can't recall the year. Have you checked the headlight switch itself? Sometimes the contacts inside get corroded or damaged, causing intermittent faults. Does the error code specifically point to the headlight switch circuit?