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    JSGROG's Avatar
    JSGROG Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 25, 2010, 10:40 AM
    Scan tool not reading car computer
    My auto scanne is not able to read my trucks computer. It reads that a vehicle must be plugged in which it was. It is not the scanner because I tested that. The battery was replaced and the a.c. Did not work properly. I disconnected the battery to reset the a.c. And the engine light came on. Did I fry the computer?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Jul 25, 2010, 10:55 AM

    I'm not sure what is going on. The ECM may have taken a hit. Did you turn the ignition switch to ON, while you had the scanner plugged in? Have you tested all under hood and under dash fuses with a test light or multimeter?
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