Chrysler 2000 LHS Owner's Manual page 356

LH
DIAGNOSIS AND TESTING (Continued)
CONDITION
HEADLAMPS FLASH
RANDOMLY
HEADLAMPS DO NOT
ILLUMINATE
HEADLAMPS ILLUMINATE
CONTINUOUSLY WITH
IGNITION ON
INSTRUMENT PANEL
LAMPS DO NOT DIM OR
ILLUMINATE
POSSIBLE CAUSES
1. Poor lighting circuit Z1-ground.
2. High resistance in headlamp
circuit.
3. Faulty headlamps switch circuit
breaker.
4. Loose or corroded terminals or
splices in circuit.
5. Loose relay
6. Faulty Body Control Module
1. No voltage to headlamps.
2. No Z1-ground at headlamps.
3. Faulty headlamp switch.
4. Faulty dimmer switch.
5. Broken connection between BCM
and headlamp/parking lamp relay.
6. Faulty parking lamp/headlamp
relay.
7. Faulty Body Control Module
1. Check headlamp switch circuit G52
for continuity. If no continuity.
2. Check headlamp switch return
circuit L80 for continuity. If no
continuity. (BCM will automatically do
this if no continuity is detected.)
3. Check circuit L43 left side and L44
right side for a short to battery
between the headlamp switch and the
headlamp relay.
4. Stuck relay.
5. Faulty Body Control Module
1. No voltage to dimmer switch.
2. No Z1-ground at headlamps.
3. Faulty dimmer switch.
CORRECTION
1. Test for voltage drop across Z1-ground
locations, refer to Group 8W, Wiring
Diagrams.
2. Test amperage draw of headlamp
circuit.
3. Replace headlamp switch.
4. Inspect and repair all connectors and
splices, refer to Group 8W, Wiring
Diagrams.
5. Inspect and reset headlamp and parking
lamp relays.
6. Replace Body Control Module
1. Repair open headlamp circuit, refer to
Group 8W, Wiring Diagrams.
2. Repair circuit ground, refer to Group
8W, Wiring Diagrams.
3. Replace headlamp switch.
4. Replace headlamp switch.
5. Check Junction Block. continuity.
Service as necessary.
6. Replace relay.
7. Replace Body Control Module
1. Repair circuit.
2. Repair circuit.
3. Repair circuit.
4. Replace relay.
5. Replace Body Control Module
1. Check fuse. If good repair open
headlamp circuit, refer to Group 8W,
Wiring Diagrams.
2. Repair circuit ground, refer to Group
8W, Wiring Diagrams.
3. Replace dimmer switch.
LAMPS 8L - 5