1998 XJ Runs Like Crap
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Joined: Oct 2014
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Model: Cherokee
Hope you are using the 20 VDC scale on your digital voltmeter, and have the ignition switch to the ON/run position.
Generally, if you see low voltage readings on all the 5 volt supply voltage (Orange) sensor wires (like you are seeing) it means the PCM is bad. On the other hand, if you see voltages above the 5 volt +/- .5 volt spec it means the clockspring is bad.
Generally, if you see low voltage readings on all the 5 volt supply voltage (Orange) sensor wires (like you are seeing) it means the PCM is bad. On the other hand, if you see voltages above the 5 volt +/- .5 volt spec it means the clockspring is bad.
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