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manfreddrache1

Sylphy random error lights

I've got a 2021 Nissan Sylphy hybrid with about 36k km. Random errors are popping up – like the driving mode freaks out, or error lights blink for no reason. Sometimes the audio or navigation just dies. It's happened twice now that the whole system just froze for a second. Error memory shows something, but I can't make heads or tails of it. Any ideas?

Summary of the thread

A 2021 Nissan Sylphy hybrid is experiencing random error lights, system freezes, and issues with audio and navigation. The problem may be due to a loose cable connection affecting the vehicle's control units. A similar issue was resolved in another car by checking and securing the cable harness, which is suggested as a potential solution. Booking a professional inspection is recommended to address the problem effectively.

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4 comment(s)

hanneseagle17

Sounds like gremlins, eh? I had similar issues on my old 2018 Volvo V60. Weird system failures, like a Christmas tree on the dashboard. Ever scanned with an OBD-II reader? Might give you a clue, I did, but still had to get it sorted.

manfreddrache1 (community.author)

Yeah, scanned it, and it throws a code, but it's super vague and doesn't pinpoint anything specific. Did your Volvo throw similar vague codes, and did it point to anything?

hanneseagle17

Yep, vague codes aplenty. Turned out to be a dodgy cable connection to one of the control units messing with the BUS system – like a loose wire causing all sorts of havoc. Best get it checked by someone who knows their stuff. My repair cost was pretty similar. Cost me about 160€

manfreddrache1 (community.author)

Cheers for the help. I'll book it in with the shop, sounds like a cable. Your experience with the Volvo is a great analogy. Mechanic confirmed. Seems like the cable harness to the main infotainment was loose. Repair cost: 155€

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NISSAN

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SYLPHY