Renault 21 ECU ? - Page 2 - Renault Forums :: Independent Renault forum

Electronics In Car Entertainment (ICE), Sat-Nav, lighting, wiring etc.

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post #6 of 6 (permalink) Old 3rd March 2009 Thread Starter
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Does anyone know, if I replace the ECU with one of the same model from a donor car, whether that ECU will work as is ?

I've read that some of these units are programmed to work with a specific key. I'm assuming this means one of the newer models and since mine is a 1993 Renault 21 (non turbo ) without any security in the key, I'd imagine they would be transferrable without needing reprogramming ? Or are other sensors or ignition parts verified in some way by the ECU ?

I never realised it could be so complicated
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