reinhard_fischer2

Peugeot 207 immobilizer issue

Hey guys, I'm having a weird issue with my 2009 Peugeot 207 diesel. It's got 113582 km on the clock. The engine won't start. Sometimes it fires up briefly, then dies immediately. I hooked it up to a code reader and it's throwing an immobilizer error. I'm thinking it might be a key programming issue, like the ECU isn't recognizing the key. Has anyone dealt with this before?

4 comment(s)

Sounds like a classic immobilizer problem. Does the security light on the dash flash rapidly when you try to start it? If so, yeah, likely key programming or a fault in the ignition control module. Have you tried your spare key?

Yeah, the security light is definitely flashing like crazy! I did try the spare key and it's doing the exact same thing. Is there any way to bypass the immobilizer to rule out other issues?

Bypassing the immobilizer is a tricky business and not really recommended unless you know exactly what you're doing. Sounds like both keys are affected, which points to a deeper issue. Get it to a workshop to reprogram the keys or diagnose the immobilizer system. Don't start messing around, as this could cause further issues.

Thanks for the help! I took it to a local shop, and you were spot on. The key programming was corrupted. They re-flashed the key and all good, cost me 45€. Cheers!

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