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Calibration






CALIBRATION

SmartBeam(R) calibration must be performed after the inside rear view mirror is replaced with a new unit, and may also be required following inside rear view mirror support bracket removal and replacement procedures. The calibration procedure ensures that the field of vision for the SmartBeam(R) imager is aimed at the proper path directly ahead of the vehicle. New and unused replacement SmartBeam(R) units are shipped in calibration mode, which will be indicated by a slow (once-per-second) continuously flashing electrochromic mirror Light Emitting Diode (LED) while the ignition switch is in the ON position. Complaints of poor or improper system performance following mirror or mirror support bracket replacement indicate the need for SmartBeam(R) calibration.

VEHICLE PREPARATION FOR SMARTBEAM(R) CALIBRATION

1. Be certain that the imager lens and the windshield glass in front of the imager lens are clean and free from obstructions.
2. Be certain that the inside rear view mirror mounting provisions are secure.
3. Repair or replace any ineffective, worn or damaged suspension components that could hinder proper SmartBeam(R) calibration.
4. Verify proper tire inflation pressures.
5. Remove any accumulations of mud, snow or ice from the vehicle underbody.
6. Verify that there is no load in the vehicle (cargo or passengers), except for the driver.
7. The fuel tank should be FULL. Add 2.94 kilograms (6.5 pounds) of weight over the fuel tank for each estimated gallon of missing fuel.
8. Verify correct vehicle suspension height.
9. Verify that the vehicle has at least 16 kilometers (10 miles) showing on the odometer.

MARK IMAGER CENTERLINE ON WINDSHIELD





1. Take a measurement (3) across the lower edge of the tint band at the top of the windshield using the shaft of the tint band arrow within the AS1 marking on each side of the glass as the reference points.
2. Divide the upper measurement in half and mark that dimension near the lower edge of the tint band on the glass (4) using a grease pencil. This is the upper centerline of the glass.
3. Take a measurement (1) across the upper edge of the blackout area at the base of the windshield using the inside corner where each side blackout area intersects the lower blackout area as the reference points.
4. Divide the lower measurement in half and mark that dimension near the upper edge of the lower blackout area on the glass (5) using a grease pencil. This is the lower centerline of the glass.
5. Measure and mark 21 millimeters (0.827 inches) toward the passenger side of the windshield from the upper and lower glass centerline marks and draw a line (2) between these marks. This is the centerline of the imager.

NOTE: Be certain to clean the centerline marks from the area of the glass in front of the imager lens before attempting to calibrate the SmartBeam(R) unit.

MARK IMAGER CENTERLINE ON LIFTGATE GLASS





1. Take a measurement (3) across the lower edge of the liftgate glass hinges using the vertical edges of the body liftgate opening as the reference points.
2. Divide the upper measurement in half and mark that dimension on the glass (4) using a grease pencil. This is the upper centerline of the glass.
3. Take a measurement (1) across the lower edge of the liftgate glass strut mounts using the vertical edges of the body liftgate opening as the reference points.
4. Divide the lower measurement in half and mark that dimension on the glass (2) using a grease pencil. This is the lower centerline of the glass.
5. Measure and mark 21 millimeters (0.827 inches) toward the passenger side of the liftgate glass from the upper and lower glass centerline marks and draw a line (5) between these marks. This is the centerline of the imager.

SET UP AIM BOARD AND TRIPOD





1. Position the vehicle on a level surface in a dimly lit area.
2. Place the aim board and tripod (4) (Special Tool No. 9649) 127 centimeters (50 inches) ahead of the foremost center of the front fascia (2).
3. Sight through the V-notch (1) in the upper edge of the aim board to align and center the board to the imager centerline marks on both the windshield and the liftgate glass (3).
4. Adjust the tripod so that the center Light Emitting Diode (LED) on the aim board is 145 centimeters (57 inches) from the level floor (5).

CALIBRATION PROCEDURE





1. Connect a diagnostic scan tool to the Data Link Connector (DLC) (1) below the driver side end of the instrument panel (2).
2. Turn the ignition switch to the ON position.
3. Use the diagnostic scan tool to enter the SmartBeam(R) unit into calibration mode. Look in the diagnostic scan tool under the SmartBeam or Automatic High Beam Module/AHBM menu item as appropriate. When the SmartBeam(R) unit has entered calibration mode, it will be indicated by a continual flashing of the electrochromic LED at a slow rate of once-per-second.
4. Connect the aim board transformer to illuminate the aim board LED units. The electrochromic LED will continue to flash for 5 to 10 seconds, then will stop flashing to indicate that it has completed calibration. If the LED begins to flash at a faster rate (twice-per-second), it indicates that a Diagnostic Trouble Code (DTC) has been recorded. Use the diagnostic scan tool to retrieve the DTC, then refer to the appropriate diagnostic information.

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