Mike's Workshop Manuals
: Service manuals for every vehicle
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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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P1DA9-00-Transmission Fluid Temperature Rationality
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Set Condition
Set Condition
Transmission oil temperature delta between 2 measurements exceeds a calibrated threshold for a calibrated amount of time.