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P0740–TCC OUT OF RANGE (CONTINUED) 2. CHECK TO SEE IF DTC P0740 IS CURRENT With the scan tool, Read and RECORD ALL Transmission DTC’s. After recording DTC’s, erase DTC’s. Drive the vehicle until the transmission temperature is at least 43° C or 110° F and the engine temperature at least Perform the following steps 3 times. Drive the vehicle to the speed of at least 88 km/h or 55 MPH. Allow 4th gear to engage for at least 10 seconds. Close the throttle. Tip back into the throttle until the TPS angle is between 25 and 29 degrees. NOTE: If the throttle angle goes over 30 degrees, you must close the throttle and try again. Did the TCC engage during any of the attempts, Engine speed approximately equal to input speed? Yes >> Go To 3 No >> Go To 4 3. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorts and open circuits. With the scan tool, check the EATX DTC EVENT DATA to help identify the conditions in which the DTC was set. Were there any problems found? Yes >> Repair as necessary. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Test Complete. 4. LR SOLENOID With the scan tool, check for other transmission DTC’s. Are the DTCs P1775 and P0841 present also? Yes >> Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 5 21 - 372 AUTOMATIC TRANSMISSION - 545RFE - ELECTRICAL DIAGNOSTICS DR/DH |