Headlamp: Adjustments
HEADLAMP ALIGNMENTHeadlamps can be align using the screen method provided in this section. Alignment Tool C-4466-A or equivalent can also be used. Refer to instructions provided with the tool for proper procedures.
Headlamp Alignment Screen-Typical:
A. LAMP ALIGNMENT SCREEN PREPARATION
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.
B. 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.
Fig. 14 Headlamp Aiming Pattern:
C. HEADLAMP ADJUSTMENT
- A properly aimed low beam headlamp will project the top edge of high intensity pattern on the alignment screen from 25 mm (1 in.) above to 75 mm (3 in.) below the headlamp centerline. The side-to-side outboard edge of high intensity pattern should be from 50 mm (2 in.) left to 50 mm (2 in.) right of headlamp centerline. The preferred headlamp alignment is 1" down for the up/down adjustment and 0 for the left/right adjustment.
- The high beam pattern should be correct when the low beams are aligned properly.
- To adjust headlamp aim, rotate alignment screws to achieve the specified high intensity pattern.