Some 2020 Lincoln Corsair vehicles equipped with an 8F24, 8F35 or 8F40 transmission may exhibit an unable to engage park condition with a MIL on and DTC P07E4 stored in ECM memory.
There will also be a shift system fault warning message displayed and the electronic park brake will be automatically applied when park is requested.
This condition may be caused by an incorrect underhood section of the transmission park manual release cable or the underhood section of the transmission park manual release cable not in the proper stowed position.
1. Using a borescope, verify the underhood transmission park manual release cable part number. The part number label is located on the cable under the battery tray. Refer to the parts catalog to verify the correct part number. If the part number is not correct, replace both sections of the park manual release cable.
2. If the part number is correct, with the key on/engine off (KOEO) mode and the brake pedal fully depressed, fully actuate the transmission park manual release cable to the override position (which should activate a cluster message stating “Park not available apply park brake before exiting”) and release the manual release cable. Make sure that the cable handle cover is reinstalled. Make sure to pull the cable straight out. Do not pull at an angle.
3. Disconnect the cable from the transmission lever. The lever may move slightly when disconnecting the cable. If the shift system fault warning message disappears, replace both sections of the park manual release cable. Clear all DTCs.
