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    Default What Voltage & Current Readings When Checking Battery Drain?

    What Voltage and current readings should I be reading with the engine off when I disconnect the positive cable and put the positive VOM probe on the battery positive terminal and the negative VOM probe connected to the Positive Cable?

    Of course before I check I'll pull all fuses and disconnecting everything else except the ECM on my
    '90 GMC Sierra, 5.7L TBI, 1/2Ton, 2WD
    Sincerely Jon
    Last edited by xJohnDoe001x; 03-08-2013 at 09:58 PM. Reason: clearity

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