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P0731-GEAR RATIO ERROR IN 1ST (CONTINUED) 4. INTERNAL TRANSMISSION Repair internal transmission as necessary. Refer to the Service Information. If there were any line pressure DTC’s present along with this DTC, make sure to inspect the: Primary oil filter and If DTC’s P0876 and/or P0875 were present in addition to the P0731, replace the Transmission Solenoid/TRS Pay particular attention to the following list of possible causes when repairing the transmission condition. - Cut UD piston seal - Failed overrunning clutch - Cut UD accumulator seal ring - Broken UD accumulator piston - Broken reaction shaft support seal ring - Low line pressure - Broken/missing main valve body bleed orifice - Broken/missing dribbler orifice assembly in reaction shaft support - Poor machining on pump valve body face - Transmission Solenoid/TRS Assembly View repair. Repair Repair internal transmission per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. 21 - 78 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS WK |