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• When Monitored: • Set Condition: Possible Causes RELATED TCM POWER INPUT DTCS PRESENT (T20) LR SOLENOID CONTROL CIRCUIT OPEN (T20) LR SOLENOID CONTROL CIRCUIT SHORT TO GROUND (T20) LR SOLENOID CONTROL 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 Four solenoids are used to control the friction elements (clutches). The continuity of the solenoids circuits are peri- 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 2. CHECK TO SEE IF P0750 IS CURRENT With the scan tool, Check the STARTS SINCE SET counter. NOTE: This counter only applies to the last DTC set. Is the STARTS SINCE SET counter for P0750 set at 0? Yes >> Go To 3 No >> Go To 8 21 - 534 AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS LX |