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stefanguenther5

Focus turn signal faulty

I've got a head-scratcher with my 2012 Ford Focus diesel. The left turn signal is acting up. I'm getting an error stored, a warning light, and the light itself is faulty. I've looked at the wiring and bulb, but everything seems visually okay. I suspect a dodgy cable or plug connection. Anyone else had something similar?

Summary of the thread

A 2012 Ford Focus diesel has a faulty left turn signal, with an error and warning light present. Initial checks of the wiring and bulb showed no visible issues, leading to suspicion of a faulty cable or plug connection. A suggestion to inspect the connector for corrosion proved correct, as a corroded connector was identified and resolved by a workshop, restoring the turn signal's functionality.

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4 comment(s)

marc_mystic1

Sounds familiar! I had a similar issue with my old Opel Astra. The error codes and dash lights were driving me nuts. Did you check the connector itself for corrosion? That was the culprit in my case. A tiny bit of green gunk was enough to throw everything off.

stefanguenther5 (community.author)

Good shout! I'll take a closer look at the connector pins themselves. Was it obvious once you found it, or did you need to get a multimeter involved?

marc_mystic1

It wasn't immediately obvious. The corrosion was pretty minor, but once I cleaned it off, everything worked perfectly. Honestly, though, considering the hassle and potential for messing something up, I'd just take it to a workshop. I ended up doing that anyway after chasing ghosts for a week. They sorted it in an hour.

stefanguenther5 (community.author)

Appreciate the advice! I did end up taking it to the shop; you were right, it was a corroded connector. They cleaned it and charged me 95€, so not too bad. Thanks for pointing me in the right direction!

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FORD

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FOCUS