sebastianlorenz67

Fiat 500 ABS Fault

Hi, I'm having a nightmare with my 2023 Fiat 500 Electric. It's got about 189763 km on the clock, and recently the ABS lamp lights up constantly. I'm also experiencing traction problems, and it seems like the whole ABS system is failing intermittently. I've checked the basics, like wheel speed sensors, but everything seems okay physically. Could it be a transmission issue or maybe something with the input from the odometer? I'm starting to think it's beyond my diagnostic skills.

A 2023 Fiat 500 Electric is experiencing a persistent ABS warning light and traction problems, suggesting a potential ABS system failure. Initial checks of wheel speed sensors showed no physical issues. A similar case pointed to a defective ABS control unit as the cause, suggesting that professional diagnostics might be necessary to confirm and resolve the issue.

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4 comment(s)

I had a similar issue with my Fiat 500 a while back. Same symptoms - ABS light, traction control going haywire, the works. Did you manage to check the control unit? In my case, that was the culprit. It was a defective unit throwing everything off.

Thanks for the quick reply! When you say control unit, do you mean the main ABS module, or something else related to the transmission? Was it throwing any specific error codes that pointed you in that direction? I'm trying to avoid just throwing parts at it.

Yes, I am referring to the main ABS module. Unfortunately, I do not recall the exact error codes, but the workshop confirmed that the speed signal fault was due to a defective control unit. I recommend taking it to a reputable shop to get a proper diagnostic.

Appreciate the insight. Looks like I'll have to bite the bullet and take it in. I was hoping to avoid it, but it sounds like the control unit is the likely culprit, and that's beyond my skillset to diagnose properly. I've been quoted around 1000€ for the repair, which seems steep, but if it fixes the ABS and traction issues, it'll be worth it. Thanks again for sharing your experience!

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FIAT

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500