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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1639 (66RFE Automatic Transmission - DTCS P0871 To U1449 - 2500 Hd) >> DTC Troubleshooting >> P0988-4C Pressure Switch Rationality >> Set Condition

Set Condition

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The DTC is set if the 4C Pressure Switch reads open or closed at the wrong time in a given gear.