mikaflamme7

Palio siren communication fault

My 2008 Fiat Palio diesel is throwing a weird code. It's got 241432 km on the clock. The error memory says there's a 'siren communication fault,' and the alarm system is totally dead. Anyone else seen this? Could a dodgy connection really kill the whole thing?

A 2008 Fiat Palio diesel is experiencing a 'siren communication fault,' causing the alarm system to be non-functional. The issue is suspected to be due to a faulty or corroded wiring connection to the siren. Suggested solutions include checking the siren's wiring and plug connections, with a mechanic confirming that a faulty cable is likely the cause. Repair costs are estimated at 95€.

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4 comment(s)

Sounds familiar! I had a similar issue on my Palio. Was getting a ghost alarm signal randomly. Did you check the siren's wiring and plug connections? That's where I'd start. Is your error always on, or just intermittent?

Thanks for the quick reply! Intermittent at first, but now it's constant. Where exactly is the siren located? I assume it's not too hard to get to?

Yep, constant error means it's probably not just a random glitch. I eventually traced it to the siren wiring harness being corroded. Honestly, I got frustrated and took it to a workshop. Saved myself a headache, but maybe you are braver than me!

Appreciate the insight. Seems like a faulty cable is the culprit, according to the mechanic, they have seen it before. Quoted 95€ for the repair. Guess I'll bite the bullet this time!

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FIAT

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PALIO