Height Sensor Test

Turn ignition off, then on to reset height sensor timer circuit. Raise vehicle on hoist by wheels (alignment rack type hoist) or by rear axle to position vehicle at normal riding height.
Disconnect link from height sensor metal arm. Ensure height sensor connector is securely connected and ground wire is secure. Move height sensor metal and plastic arm assembly upward. After 8-15 second delay, compressor should turn on and inflate shocks. If compressor does not turn on, go to COMPRESSOR INOPERATIVE under ELECTRICAL TESTING. If compressor turns on and shocks start to inflate, move metal and plastic arm assembly down until compressor just stops.
Move metal and plastic arm assembly down to point just below where compressor stopped. After 8-15 second delay, shocks should begin to deflate. If shocks do not begin to deflate, go to VEHICLE WILL NOT LOWER under ELECTRICAL TESTING. Reconnect link to height sensor metal arm and lower vehicle.