If it is an ECU problem, the Checjk Engine Light would show and you would have performance issues such as lack of power, difficult or non starting.
For ECU testing you would need to have the appropriate scanner that can read all the operating specifications when the engine is running.
Most manufacturers recommends substituting with a good known ECU if you are not able to diagnose any faults with the sensors etc.
The charging voltage is correct but if the charge indicator light is showing, it could be a faulty rectifier in the alternator.
Did you check is any of the fuses are blown?
Tuesday, June 1st, 2010 AT 7:24 AM