Operation CHARM: Car repair manuals for everyone.

Headlamp: Adjustments

HEADLAMP ALIGNMENT
Headlamps can be aligned using the screen method provided. Alignment Tool C-4466-A or equivalent can also be used. Refer to instructions provided with the tool for proper procedures.

LAMP ALIGNMENT SCREEN PREPARATION

Headlamp Alignment Screen-Typical:




1. Position vehicle on a level surface perpendicular to a flat wall 7.62 meters (25 ft) away from front of headlamp lens.
2. If necessary; tape a line on the floor 7.62 meters (25 ft) away from and parallel to the wall.
3. Measure from the floor up 1.27 meters (5 ft) and tape a line on the wall at the centerline of the vehicle. Sight along the centerline of the vehicle (from rear of vehicle forward) to verify accuracy of the line placement.
4. Rock vehicle side-to-side three times to allow suspension to stabilize.
5. Jounce front suspension three times by pushing downward on front bumper and releasing.
6. Measure the distance from the center of headlamp lens to the floor. Transfer measurement to the alignment screen (with tape). Use this line for up/down adjustment reference.
7. Measure distance from the centerline of the vehicle to the center of each headlamp being aligned. Transfer measurements to screen (with tape) to each side of vehicle centerline. Use these lines for left right adjustment reference.

VEHICLE PREPARATION FOR HEADLAMP ALIGNMENT
1. Verify headlamp dimmer switch and high beam indicator operation.
2. Correct defective components that could hinder proper headlamp alignment.
3. Verify proper tire inflation.
4. Clean headlamp lenses.
5. Verify that luggage area is not heavily loaded.
6. Fuel tank should be FULL. Add 2.94 kg (6.5 lbs.) of weight over the fuel tank for each estimated gallon of missing fuel.

HEADLAMP ADJUSTMENT
Headlamps can be aligned using the screen method. The Headlamp Alignment Tool C-4466-A or equivalent can also be used. Refer to instructions provided with the tool for proper procedures.

Headlamp Alignment Screen Target:




A properly aimed low beam will project the top edge of the beam intensity pattern on the screen from 25 mm (1 in.) above to 75 mm (3 in.) below headlamp centerline. The side-to-side left edge of the beam intensity pattern should be from 50 mm (2 in.) left to 50 mm (2 in.) right of headlamp centerline.
1. Remove screws and both headlamp bezels.
2. Clean front of the headlamps.
3. Place headlamps on LOW beam.
4. Cover front of the headlamp that is not being adjusted.

Headlamp Beam Adjustment Screws:




5. Turn vertical adjustment screw until the headlamp beam pattern on screen/wall is similar to the pattern depicted in the alignment screen figure.

NOTE: When using a headlamp aiming screen, adjust the headlamps so that:
- The left edge of the beam intensity pattern is positioned within 50 mm (2 in.) left to 50 mm (2 in.) right of the vertical centerline.
- The top edge of the beam intensity pattern is positioned within 25 mm (1 in.) above or 75 mm (3 in.) below the headlamp horizontal centerline.

6. Cover front of the headlamp and adjust the other headlamp beam as instructed below.
7. Rotate the adjustment screws until the beam intensity pattern on the aiming screen/wall is aligned within the headlamp the alignment screen target.
8. Cover front of headlamp that has been adjusted and adjust the other headlamp beam as instructed above.
9. Install headlamp bezels. Tighten the screws securely.