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NOTE: The OD/Rev piston contains a small bleed orifice, a small amount of leakage between the OD and Is there excessive air leakage in any clutch circuit? Yes >> Check the OD/Rev piston seals and bleed orifice, reaction shaft support seal rings, dribbler orifice assemblies in the reaction shaft support and for poor machine on the pump valve body faces. Refer to Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Repair the Valve Body. Check the OD Accumulator piston and seals, OD bleed orifice, and No. 6 check ball cuts or damage. If no problems are found in the Valve Body, replace the Transmission Solenoid/ Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- 15. CHECK TCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Relay. CAUTION: Removal of the Starter Relay will prevent the vehicle from being started in gear. WARNING: The Starter Relay must be removed from the PDC. Failure to do so can result in personal injury NOTE: Failure to remove the Starter Relay can cause a Transmission - No Response condition. Ignition on, engine not running. With the Transmission Simulator, turn the Pressure Switch selector switch to OD. With the scan tool, monitor the OD Pressure Switch state while pressing the Pressure Switch Test button on the Did the state of the OD Pressure Switch change from OPEN to CLOSED while pressing the Test but- Yes >> Go To 16 No >> Go To 18 16. CHECK IF THE NO. 4 AND/OR NO. 6 CHECK BALL IS CUT OR DAMAGED With the scan tool, erase previously stored DTC’s and test drive the vehicle, use the DTC EVENT DATA to help Remove the Transmission Valve Body per the Service Information. Check the No. 4 and No. 6 Check Balls for cuts or damage. Is the No. 4 and/or No. 6 Check Ball cut or damaged? Yes >> Replace the No. 4 and/or No. 6 Check Ball and check for clutch debris in the transmission oil pan. If there is excessive debris, perform internal repairs to the OD Clutch Assembly. Refer to the Service Infor- Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Go To 17 21 - 572 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS - (DIESEL) KJ |