Question about 1998 Volvo V70

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ECU engine management warning light

ECU Engine management system has been replaced but the engine management warning light still comes on. The car still performs well but I don't know if anything else goes wrong. It's also too costly to keep on putting it in the garage for the plug-in testing.

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  • Derek Price Sep 02, 2008

    Yes garage did test and all was OK.

  • yadayada
    yadayada May 11, 2010

    Have you run the system self test, the ECU light does not mean the ECU is faulty, only that a system controlled by it has a fault.

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  • Volvo Master
  • 60,792 Answers

There is a problem, it needs to go to a factory service center, it can be any one of multiple reasons that turns this light on.

Posted on Sep 02, 2008

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