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2000 Chrysler LHS Question: Dead battery and PCM

 

Question

frosty, 3.5L V6, Colorado Springs, CO, September 20, 2011, 21:04
 Rookie

Is it possible that a dead battery, even on a jump, would not have the proper voltages to make the PCM function. Still have the crank wont start problem. Have replaced the Crank Position sensor, still no spark; I have voltage measurements on the sensor connector. The engine quit while driving and has never restarted.

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  • Answer #1

    Jim Taddei September 21, 2011, 11:32
     Master

    Problems with the vehicle electronics generally begin to show when system drops below 9 volts. Check your volt meter while craning the engine to see if that may be your problem.

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    frosty, September 21, 2011, 12:29
     Rookie

    It is below 9 volts with the key in the start position without cranking. So are you saying while jumping the car could still not get enough voltage to the computers and not allow spark to happen?

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    Jim Taddei, September 21, 2011, 12:30
     Master

    Right

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