Mike's Workshop Manuals
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Jeep
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2018
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Wrangler Unlimited Moab
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Repair and Diagnosis
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Transmission
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Transmission Control Systems
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Transmission Control Module (TCM) - DTCS P1D91-00 To U1477-00
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DTC Troubleshooting
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P1DDE-00-Ignition Run-Start Input 1-2 Correlation
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Set Condition
Set Condition
The hard wired ignition signal to the Transmission Control Module (TCM) is not equal to the ignition signal that is transmitted on the CAN bus from the Body Control Module (BCM).