Lamps/Lighting - Exterior; Headlamp; Diagnosis And Testing - Headlamp - Chrysler Dodge Caravan 2002 Manual

8L - 12

LAMPS/LIGHTING - EXTERIOR

FRONT POSITION LAMP - EXPORT (Continued)
Fig. 11 FRONT POSITION LAMP
1 - TURN SIGNAL LAMP
2 - HIGH BEAM LAMP
3 - FRONT POSITION LAMP
4 - LOW BEAM LAMP
(4) Install the headlamp unit.
(5) Connect the battery negative cable.
CONDITION
HEADLAMPS ARE DIM
WITH ENGINE IDLING
OR IGNITION TURNED
OFF.
HEADLAMP BULBS
BURN OUT
FREQUENTLY.
HEADLAMP DIAGNOSIS
POSSIBLE CAUSES
1. Loose or corroded battery
cables.
2. Loose or worn generator drive
belt.
3. Charging system output too low.
4. Battery has insufficient charge.
5. Battery is sulfated or shorted.
6. Poor lighting circuit Z343/Z344-
ground.
1. Integrated Power Module (IPM)
not controlling voltage.
2. Loose or corroded terminals or
splices in circuit.

HEADLAMP

DIAGNOSIS AND TESTING - HEADLAMP

When a vehicle experiences problems with the
headlamp system, verify the condition of the battery
connections, fuses, charging system, headlamp bulbs,
wire connectors, relay, high beam switch, dimmer
switch, and headlamp switch. Refer to the appropri-
ate wiring information.
Each vehicle is equipped with various lamp assem-
blies. A good ground is necessary for proper lighting
operation. Grounding is provided by the lamp socket
when it comes in contact with the metal body, or
through a separate ground wire.
When changing lamp bulbs check the socket for
corrosion. If corrosion is present, clean it with a wire
brush.
When it is necessary to remove components to ser-
vice another, it should not be necessary to apply
excessive force or bend a component to remove it.
Before damaging a trim component, verify hidden
fasteners or captured edges are not holding the com-
ponent in place.
1. Clean and secure battery cable clamps and
posts.
2. Adjust or replace generator drive belt.
3. Test and repair charging system, refer to
Electrical, Charging
4. Test battery state-of-charge, refer to
Electrical, Battery System.
5. Load test battery, refer to Electrical, Battery
System.
6. Test for voltage drop across Z343/Z344-
ground locations, refer to Electrical, Wiring
Diagram Information.
1. Test and repair Integrated Power Module.
2. Inspect and repair all connectors and splices.
Refer to Electrical, Wiring Information.
CORRECTION
RS