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• When Monitored: • Set Condition: Possible Causes RELATED TCM POWER INPUT DTCS PRESENT LOSS OF PRIME DTC PRESENT (T50) L/R PRESSURE SWITCH SENSE CIRCUIT OPEN (T50) L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND (T50) L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY POWERTRAIN CONTROL MODULE Always perform the 42RLE Pre-Diagnostic Troubleshooting Procedure before proceeding. (Refer to 21 - Theory of Operation The Transmission system uses three pressure switches to monitor the fluid pressure in the LR, 2/4, and OD ele- PRESSURE SWITCH STATES GEAR L/R 2/4 OD R OP OP OP P/N CL OP OP 1st CL OP OP 2nd OP CL OP D OP OP CL OD OP CL CL OP = OPEN CL = CLOSED Diagnostic Test 1. DETERMINE IF RELATED TCM POWER INPUT DTCS ARE PRESENT With the scan tool, read Transmission DTCs. Are there any TCM Power Input DTCs present also? Yes >> Refer to the Transmission category and perform the appropriate diagnostic procedure. No >> Go To 2 21 - 554 AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS LX |