Intermittent P0640, P1694 and no start with BUS voltage problems.
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Model: Cherokee (XJ)
Intermittent P0640, P1694 and no start with BUS voltage problems.
I have been following three threads regarding BUS issues and No Start issues. My 01 XJ Sport had intermittent P0340 and P1694 codes that eventually became permanent. I have got the codes to go away and the keep starts and runs now, but it has a slight miss and the transmission isn’t shifting right now. I’ve checked the voltage and continuity at most of the modules and sensors CKKen and others have provided guidance on. I have the required voltages at the PCM, TCM, and DLC. I have low intermittent voltage at the instrument cluster, overhead board for keyless entry, and the plug for the SKIM (no SKIM though). I have also removed, cleaned and replaced all ground wires/cables. I’m not sure where to go next.
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