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3. 2C CLUTCH CIRCUIT LEAKS IN THE VALVE BODY Turn the ignition off to the lock position. Remove the transmission oil pan per the Service Information. Remove the valve body per the service information. Check condition of the 2C accumulator springs. Look for possible leak paths into the 2C clutch hydraulics circuit within the valve body. Were any problems found? Yes >> Repair as necessary. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Go To 4 4. AIR CHECK 2C CLUTCH CIRCUIT Turn the ignition off to the lock position. Perform an air check on the 2C Clutch circuit per the Service Information. Watch and listen for 2C Clutch piston movement. Dose the piston stroke and return properly? Yes >> Replace the Transmission/TRS Solenoid Assembly per the service information. With the scan tool, per- form Quick Learn. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Repair internal transmission as necessary. Pay attention to the components related to the 2C clutch. A broken or dislodged 2C return spring, snap ring or broken 2C Accumulator Spring could cause this prob- Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- 5. VERIFY TCM OPERATION NOTE: The TRANS TEMP DEG must be at least 43° C or 110° F before performing the following steps. With the scan tool, record the CL VOL INDEX (CVI) for all clutches With the scan tool, perform a BATTERY DISCONNECT. With the scan tool, read the CVI’s and compare them to the readings recorded before the BATTERY DISCONNECT. Are any of the CVI’s less than 5 or different than before the BATTERY DISCONNECT? Yes >> Using the schematics as a guide, check the Transmission Control Module (TCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Test Complete. 21 - 664 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS - (DIESEL) KJ |