Chrysler 1998 Voyager Service Manual page 480

8L - 2 LAMPS
GENERAL INFORMATION (Continued)
HEADLAMP LEVELING MOTOR
This vehicle is equipped with a remote headlamp
leveling system. This system allows the driver to
adjust the vertical headlamp aim from the interior of
the vehicle to compensate for passenger or cargo
load. A headlamp leveling switch is located in the
instrument panel and controls the headlamp leveling
motor found on the back of the headlamp module.
CONDITION
HEADLAMPS ARE DIM
WITH ENGINE IDLING OR
IGNITION TURNED OFF
HEADLAMP BULBS BURN
OUT FREQUENTLY
HEADLAMPS ARE DIM
WITH ENGINE RUNNING
ABOVE IDLE
HEADLAMPS FLASH
RANDOMLY
HEADLAMPS DO NOT
ILLUMINATE
HEADLAMP DIAGNOSIS
POSSIBLE CAUSES
1. Loose or corroded battery cables.
2. Loose or worn alternator drive
belt.
3. Charging system output too low.
4. Battery has insufficient charge.
5. Battery is sulfated or shorted.
6. Poor lighting circuit Z1-ground.
1. Charging system output too high.
2. Loose or corroded terminals or
splices in circuit.
1. Charging system output too low.
2. Poor lighting circuit Z1-ground.
3. High resistance in headlamp
circuit.
1. Poor lighting circuit Z1-ground.
2. High resistance in headlamp
circuit.
3. Loose or corroded terminals or
splices in circuit.
1. No voltage to headlamps.
2. No Z1-ground at headlamps.
3. Faulty headlamp switch.
4. Faulty headlamp dimmer
(multi-function) switch.
5. Broken connector terminal or wire
splice in headlamp circuit.
6. Defective or burned out bulb.
7. Body controller malfunction.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
When a vehicle experiences problems with the head-
lamp system, verify the condition of the battery connec-
tions, charging system,
connectors, relay, high beam dimmer switch and head-
lamp switch. Refer to Group 8W, Wiring Diagrams, for
component locations and circuit information.
1. Clean and secure battery cable clamps
and posts.
2. Adjust or replace alternator drive belt.
3. Test and repair charging system. Refer
to Group 8A.
4. Test battery state-of -charge. Refer to
Group 8A.
5. Load test battery. Refer to Group 8A.
6. Test for voltage drop across Z1-ground
locations. Refer to Group 8W.
1. Test and repair charging system. Refer
to Group 8A.
2. Inspect and repair all connectors and
splices. Refer to Group 8W.
1. Test and repair charging system. Refer
to Group 8A.
2. Test for voltage drop across Z1-ground
locations. Refer to Group 8W.
3. Test amperage draw of headlamp circuit.
1. Test for voltage drop across Z1-ground
locations, refer to Group 8W.
2. Test amperage draw of headlamp circuit.
3. Inspect and repair all connectors and
splices. Refer to Group 8W.
1. Repair open headlamp circuit. Refer to
Group 8W.
2. Repair circuit ground. Refer to Group
8W.
3. Replace headlamp switch.
4. Replace multi-function switch.
5. Repair connector terminal or wire splice.
6. Replace bulb.
7. Refer to appropriate body controller
diagnostics.
NS/GS
headlamp bulbs,
CORRECTION
wire