Height Sensor Adjustment

The height sensor "in-trim zone" can be manually adjusted as follows:
1. Load 400 lbs. or more into the rear of the passenger compartment (enough load to activate the compressor), distributed evenly from left to right.
2. Raise the vehicle and suitably support. Raise such as the vehicle is roughly level and is supported by the rear wheels or axle.

CAUTION: When diagnosis or repair requires raising the vehicle on a hoist, it is important that the rear axle remains in the normal trim height position at all times. Therefore, the hoists should support the rear wheels or axle housing. When a frame contact hoist is used, tow addition jacks stands should be used to support the rear axle or damage to the auto level control air compressor motor could occur.

3. Inspect the height sensor for any damage and make sure the height sensor link is properly connected to the tie rod and height sensor arm.
4. Turn the vehicle ignition to "RUN" and then to "OFF". Wait approximately 1 minute for the ARC to complete.
5. Measure the "D" dimension at the rear axle on both the right and left hand side.
6. The average "D" dimension should be 125 - 140 mm (4.9 - 5.5 inches). If the average "D" dimension is within this range, do not adjust the height sensor. If the average "D" dimension is not within this range, adjust the height sensor as follows:
A. Loosen the height sensor arm adjustment bolt.
B. To raise the vehicle, move the plastic portion of the height sensor arm upwards. To lower the vehicle, move the plastic portion of the height sensor arm downwards. Rotating the plastic portion of the height sensor arm one degree will change the "D" dimension by 4 mm (0.16 inches).
C. Tighten the height sensor arm adjustment bolt to 5 Nm (44 inch lbs.).
D. Repeat steps 4 - 6 to verify that the height sensor is adjusted properly.