Peugeot 408 Ignition Error

My 2019 Peugeot 408, diesel engine, with 135854 km is throwing a "Terminal 15 ignition positive interrupted" error. The engine won't start, and the error is consistently stored. I suspect a defective cable or plug connection. Any ideas?

4 comment(s)

I had a similar issue with my 408, though a different engine. Check for voltage drops in your wiring harness, particularly around the fuse box and battery terminal. Could also be the ignition switch itself. Have you tested those?

Thanks. Where exactly on the wiring harness should I be looking? Any specific points that are prone to failure?

Honestly, without proper equipment, it's a needle in a haystack. Given the symptoms and the error code, it is likely a wiring issue. I'd recommend taking it to a workshop. Probably a faulty cable or plug.

Cheers, I appreciate the insight. It turned out to be a corroded connector in the main wiring loom. 95€ later, all sorted.

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