95gr.cherokee laredo 4whldr. On board diagnosis code 41. Jeep will run fine, then don't won't to take gas,have to shut off,crank &will run fine, til it acts up again. Hade pcm replace, and crank shaf
Code 41 means Alternator field control circuit open or shorted. The field control circuit comes from the computer to the alternator at the dark green wire. The circuit is grounded by the black wire, which grounds to the engine behind the alternator at one of the coil mounting bolts I believe. Check that ground is good, I expect that's the most likely cause.
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