Headlamp Beam Adjustment

���XHeadlamp Beam Adjustment:

WIRING DIAGRAM

Headlamp Beam Adjustment: Component Location:

COMPONENT LOCATION VIEW

Headlamp Beam Adjustment: Component ID:

COMPONENT ID
16 Instrument lighting rheostat on dashboard between steering wheel and driver's door.
22A Main fuse board in the dashboard.
280 Motor for left-hand headlamp beam adjustment, on the back of the left-hand headlamp.
281 Motor for right-hand headlamp beam adjustment, on the back of the right-hand headlamp.
282 Switch for headlamp beam adjustment in switch assembly between steering wheel and driver's door.
342A Main fuse board in engine bay on bulkhead partition.

33-Pin Connector
H33-2 Black connector on bracket below the left-hand A pillar.

Grounding Points
G30 Grounding point, left-hand structural member behind the battery.
G31 Grounding point, right-hand structural member, behind the RH headlamp.
G33P Grounding point, connector bracket (Power) below the left-hand A pillar.

DESCRIPTION OF OPERATION
Some models for certain markets are equipped with a headlamp beam adjustment system.

By means of a switch on the dashboard the driver can change the vertical alignment of the headlamps. This prevents the drivers of oncoming vehicles from being dazzled when the car is heavily loaded.

When the ignition switch is in the Drive position, current is supplied to pin 9 of headlamp beam adjustment switch 282 via fuse 31.

When the switch is in position 0, the head lamps are at their normal setting. When the switch is turned to position 1, current is supplied to electric stepping motors 280 and 281 which then rotate a number of revolutions.

These motors turn the headlamp adjustment screws to lower the headlamp beam setting.

When the switch is turned to position 2 or 3, the headlamp beam setting will be lowered an addition two steps.

In a similar manner, headlamp beam setting can be raised in steps through positions 3-2-1-0.

FAULT DIAGNOSIS HINTS
The headlamp beam adjustment system will be operative when the ignition switch is in the Drive position.
1. Check that fuse 31 is intact and supplied with current.
2. Check that current is supplied to switch 282.
3. Check the connectors, wiring and ground connections.