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post #4 of (permalink) Old 29th October 2007
Technical Supremo

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Depending on the type of immobiliser system the engine may turn over but not start - if the diagnostic system cannot read the ECU I would agree with you that it is either not getting power, has a poor connection or is dead. I have had a look through many car books and can't see what colour the power supply should be to the ECU . My latest book for the Laguna II shows the majority of power cables are coloured red - although this is no guarantee for the power supply for the ECU . I take it you have checked all fuses (including those under the bonnet) and relays.
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