Jeep Wagoneer/Commando/Cherokee 1984-1998

Altitude Jumper Wire



The altitude jumper wire connector is located next to the MCU. The jumper wire provides the MCU with an indication of whether the vehicle is being operated above or below a 4000 ft. elevation (high altitude operation). The connector normally has no jumper wire installed. If a vehicle is to be operated in a designated high altitude area, a jumper wire must be installed.