In order to remove the park/neutral back up switch, you should first set the park brake and move the transmission into neutral. Lift and support the vehicle, loosening the nut that holds the transmission control lever to the manual shaft and the lever as well. Detaching the park/neutral back up switch away from the transmission using its bolts, then disconnect the electrical connector from it. If the switch doesn't slide off the manual shaft, file off burrs at the outer edge of the manual shift shaft. Mount the new neutral park back up switch onto the manual shaft by aligning the switch hub flats to the flat on the transmitting shaft and slid onto the shaft until the mounting bracket contacts to the transmission bosses. If the switch that is being installed is new, it will include a positive assurance bracket, and thus there will be no need for a j 41364 -a park neutral switch aligner. Loosely install the two bolts for the switch and then mount it onto the switch by ensuring the alignment of the slots with tabs on the tool). Rotate the switch until the upper locator pin aligns with the slot on the switch, then tighten the switch bolts to 27 Nm (20 ft-lbs). Also, remove the j 41364-a (and positive assurance bracket where applicable). Reconnect the electrical connector to the switch and install the transmission control lever with nut tighten to 20 nm (15 ft. Lbs.). Reduce the vehicle, set the automatic transmission range selector cable and examine the switch for its ability to work, as the engine is only started when the switch is in the p (Park) or n (Neutral) positions; if the switch does not work well, replace it.