Aiming Procedure
- Remove any snow, ice, or mud from the vehicle.
Align the vehicles left tires with a reference line from the back tires extending 4.5 ft (1.5 m) beyond the front of the vehicle to the EL-51470. If a line is not available, running a tape measure resting against the tires from the rear tires to 4.5 ft (1.5 m) beyond the front of the car works as well.
- Verify that the tires are inflated to the proper tire pressure and the vehicle is on a level surface.
Measure from the reference line on the floor to the night vision camera. Place the EL-51470 the same distance from the reference line as the night vision camera is from the line. This will align the camera left-to-right with the car.
- Raise the center of the target crosshairs to a height of 13.1 in. (33.5 cm). The tripod has a crank on the rear of it to raise the target, adjusting the feet of the tripod is mainly used to level it.
- Turn the adjusting screws and place the EL-51470 level and square to the vehicle.
- Using Service Programming System (SPS), select Night Vision Control Module, and then select Setup to enable Night Vision Calibration.
- Verify the scan tool information Night Vision Camera Alignment Status is OK.
- If status is not OK, perform calibration.
- Go to next step: If OK is displayed
- All OK.
If the tripod construction does not allow the crosshairs to be adjusted low enough, it may be necessary to raise vehicle evenly (using equal height blocks under all tires) to attain the proper crosshair-to-vehicle height relationship
Loose connections or corrosion in the LVDS cable from B276 Night Vision Camera to K172 Night Vision Camera Control Module can cause the calibration procedure to fail and Procedure 31 Request Out Of Range message may be displayed. If calibration fails, ensure LVDS cable connections and terminals are secure, clean, and properly connected. Ensure the connectors are cycled and fully engaged with the CPAs locked.
A failed calibration is rarely caused by defective components and therefore Night Vision components should not replaced unless directed to by a component-related DTC diagnostic.