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Jeep
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2009
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Commander Overland, RWD
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Repair and Diagnosis
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Transmission
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Automatic Trans
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(Powertrain Control Module (Pcm) - Electrical Diagnostics - 545RFE Automatic Transmission)
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DTC Troubleshooting
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P0988-4C Pressure Switch Rationality
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Set Conditions
Set Conditions
Set Condition:
The DTC is set if the 4C Pressure Switch reads open or closed at the wrong time in a given gear.