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Home >> Chrysler >> 2003 >> Intrepid ES, 3.5 V >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Automatic Transmission Diagnosis) >> Diagnostic Tests >> DTC P0846: 2-4 Pressure Switch Sense Circuit >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0846 will set if one of the pressure switches is opened or closed at wrong time in a given gear. If the 2-4 pressure switch is identified as being closed in 1st or 3rd gear and was not identified as being closed in Park or Neutral, then 2nd gear or 4th gear will be substituted for 1st or 3rd gear depending on throttle angle and vehicle speed. A short period of time after the gear substitution, the transaxle will return to normal operating mode. If the transaxle is shifted back into 1st or 3rd gear through normal operation, and the 2-4 pressure switch remains closed, 2nd or 4th gear will be substituted briefly and then resume normal operation. If 4 gear substitutions occur in a given key start, the transaxle will go into limp-in mode. If the 2-4 pressure switch is open (indicating no 2-4 clutch pressure) in 2nd or 4th gear, the PCM sets DTC P0846 and continues with normal operation. The transaxle will only go into limp-in mode if a DTC P0706 is also present. If no 2-4 clutch pressure is present a gear ratio DTC P0732 or P0734 will be set and cause the limp-in condition.