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P0734-GEAR RATIO ERROR IN 4TH For the Transmission circuit diagram (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - For a complete wiring diagram Refer to Section 8W • When Monitored: • Set Condition: Possible Causes LOW FLUID LEVEL INPUT SPEED SENSOR OR WIRING VALVE BODY ACCUMULATOR COVER FAILED CUT OD OR 4C ACCUMULATOR SEAL CRACKED OD OR 4C ACCUMULATOR PISTON BROKEN OR MISSING OD BLEED ORIFICE IN MAIN VALVE BODY CUT 4C TOWER SEAL TRANSMISSION SOLENOID/TRS ASSEMBLY CUT OR MISSING #5 OR #6 CHECK BALL WORN SOLENOID SWITCH VALVE OR PLUGS CUT OD OR 4C PISTON SEAL STUCK MAIN REGULATOR VALVE BURNED OD OR 4C CLUTCH BROKEN OR MISSING 4C BLEED ORIFICE IN 2C/4C RETAINER BROKEN REACTION SHAFT SUPPORT SEAL RING POOR MACHINING ON PUMP VALVE BODY FACE LOOSE / MISSING DRIBBLER ORIFICE ASSEMBLY IN REACTION SHAFT SUPPORT CRACKED / LOOSE / MISSING OD/REVERSE PISTON BLEED ORIFICE BROKEN REVERSE CARRIER HUB WELD BROKEN REVERSE SUN GEAR WELD TO REACTION CARRIER Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS- 21 - 484 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS ND |