Dodge 2000 DURANGO Service Manual page 405

DN
DIAGNOSIS AND TESTING (Continued)
CONDITION
HEADLAMPS (HIGH &
LOW) DO NOT
ILLUMINATE
HEADLAMPS (LOW
BEAM) DO NOT
ILLUMINATE.
HEADLAMPS (HIGH
BEAM) DO NOT
ILLUMINATE.
HEADLAMPS (LOW
BEAM) ALWAYS
ILLUMINATE AND CAN
NOT BE SHUT OFF.
HEADLAMPS (HIGH
BEAM) ALWAYS
ILLUMINATE AND CAN
NOT BE SHUT OFF.
HEADLAMP SWITCH OFF
HEADLAMPS AND
HIGHBEAM INDICATOR
REMAIN ON AND ARE
DIM.
POSSIBLE CAUSES
1. No voltage at either headlamp.
2. No ground for high and low beam
circuit.
3. Headlamp bulb(s) defective.
4. Faulty headlamp switch.
5. Faulty headlamp dimmer
(Multifunction) switch.
6. Broken connector terminal or wire
splice in headlamp circuit.
1. No ground for low beam circuit.
1. No ground for high beam circuit.
1. Low beam circuit from bulb to
Multifunction switch is shorted to
ground.
1. High beam circuit from bulb to
Multifunction switch is shorted to
ground.
1. Headlamp switch feed circuit
shorted to ground.
CORRECTION
1. Voltage should always be present. Trace
short circuit and replace BOTH headlamp
fuses. Refer to Group 8W. Check wiring
circuit from Right headlamp fuse to
headlamp. (Repeat for Left side)
2. Ground should always be present
according to switch position. Check ground
at headlamp switch. Check wiring circuit
from headlamp switch to Multifunction
switch. Check headlamp switch and
Multifunction switch continuity. Repair circuit
ground, refer to Group 8W.
3. Replace bulb(s).
4. Replace headlamp switch.
5. Replace Multifunction switch.
6. Repair connector terminal or wire splice.
1. Ground should be present according to
Multifunction switch position. Check wiring
circuit from Multifunction switch to
headlamp. Trace open circuit in wiring and
repair. Refer to Group 8W.
Check Multifunction Switch for continuity.
1. Ground should be present according to
Multifunction switch position. Check wiring
circuit from Multifunction switch to
headlamp. Trace open circuit in wiring and
repair. Refer to Group 8W.
Check Multifunction Switch for continuity.
1. Ground should be present according to
Multifunction switch position. Check wiring
circuit from Multifunction switch to
headlamp. Trace short circuit in wiring and
repair. Refer to Group 8W.
1. Ground should be present according to
Multifunction switch position. Check wiring
circuit from Multifunction switch to
headlamp. Trace short circuit in wiring and
repair. Refer to Group 8W.
1. Check wiring circuit from right headlamp
fuse to headlamp. Repeat for left side.
Trace short circuit in wiring and repair.
Refer to Group W.
LAMPS 8L - 3