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PRESSURE SWITCHES The TCM relies on five pressure switches to monitor fluid pressure in the L/R, 2C, 4C, UD, and OD hydraulic cir- GEAR L/R 2C 4C UD OD R OP OP OP OP OP P/N CL OP OP OP OP 1ST CL* OP OP CL OP 2ND OP CL OP CL OP 2ND PRIME OP OP CL CL OP D OP OP OP CL CL 4TH OP OP CL OP CL 5TH OP CL OP OP CL *L/R is closed if output speed is below 100 rpm in Drive and Manual 2. L/R is open in Manual 1. A Diagnostic Trouble Code (DTC) will set if the TCM senses any switch open or closed at the wrong time in a given REMOVAL 1. Remove the valve body from the transmission. (Refer to 21 - TRANSMISSION/AUTOMATIC - 21 - 442 AUTOMATIC TRANSMISSION - 545RFE - SERVICE INFORMATION WK |