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P0740-TCC OUT OF RANGE (CONTINUED) 2. CHECK TO SEE IF DTC P0740 IS CURRENT Ignition on, engine not running. With the scan tool, record and erase DTCs. Drive the vehicle until it is fully warmed up to at least 110 degrees (F). Perform the following step 3 times. Drive the vehicle at 50 MPH and allow 4th gear to engage for at least 10 seconds. Close the throttle, then tip back Did the TCC engage during any of the attempts? Yes >> Go To 4 No >> Go To 3 3. INTERNAL TRANSMISSION If there are no possible causes remaining, view repair. Repair Perform the Hydraulic Pressure test per the Service Information and repair the internal transmission Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. 4. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wiring and connectors while checking for shorted and open circuits. This DTC can also be set under extreme temperature conditions. This is usually caused by an internal problem. 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 42RLE TRANSMISSION VERIFICATION TEST - VER 1. No >> Test Complete. 21 - 140 AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS ND |