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P1736-GEAR RATIO ERROR IN 2ND PRIME (CONTINUED) 13. CHECK FOR BROKEN REVERSE SUN GEAR WELD Working through the windows in the bottom of the case, check for a broken Reverse Sun gear weld to the reaction (1) Hold the Transmission Output Shaft by holding the Transmission Manual Lever in the park position. (2) Rotate the Input Annulus gear and drive shell, (the drum that encloses the two rearmost carriers). (3) Check to see if the reaction carrier (the frontmost carrier, whose outer shell is splined to the 4C clutch) is rotat- Is the reaction carrier turning faster than the drive shell? Yes >> Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Replace the reaction carrier per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. 14. CHECK IF DTC RESET Did the DTC P1736 reset during the road test? Yes >> Go To 15 No >> Go To 16 15. LIST OF POSSIBLE CAUSES If any other DTC’s set during the road test, refer to the appropriate symptom in the Transmission category. If no other DTC’s set during the road test, below is a list of possible causes, but not strictly limited to those: Check for excessive debris in the Transmission Oil pan, plugged, cracked, or split Primary Transmission Oil Filter Check for cuts or missing #7 and #5 check balls in the main valve body. Check the 4C and UD accumulator pistons and seals, UD bleed orifice, and the Solenoid Switch Valve and Plugs Check the UD clutch piston seals, reaction shaft support seal rings, and the flatness of the pump valve body and Check the 4C clutch piston seals, and bleed orifice. Check the UD clutch piston seals, reaction shaft support seal rings, and dribbler assemblies, and the flatness of the View repair Repair Repair as necessary. Refer to the Service Information for proper repair procedures. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. 21 - 520 AUTOMATIC TRANSMISSION - 545RFE - ELECTRICAL DIAGNOSTICS DR/DH |