Dodge 2000 DURANGO Service Manual page 406

8L - 4 LAMPS
DIAGNOSIS AND TESTING (Continued)
CONDITION
HEADLAMP SWITCH ON
(LOW BEAMS ON), ONE
LOW BEAM ON AND
BOTH HIGH BEAMS DIM.
HEADLAMP SWITCH ON
(HIGH BEAMS ON), ONE
HIGH BEAM ON AND
BOTH LOW BEAMS DIM.
HEADLAMP SWITCH ON,
ONE HEADLAMP
FILAMENT WILL BE AT
FULL INTENSITY AND ALL
OTHER FILAMENTS ARE
ON AND DIM.
1. HEADLAMPS STAY ON
WITH KEY OUT (DRLM
EQUIPPED VEHICLES).
*Canada vehicles must have lamps ON.
FOG LAMP
CONDITION
FOG LAMPS ARE DIM
WITH ENGINE IDLING OR
IGNITION TURNED OFF.
FOG LAMP BULBS BURN
OUT FREQUENTLY
FOG LAMPS ARE DIM
WITH ENGINE RUNNING
ABOVE IDLE
POSSIBLE CAUSES
1. Headlamp feed circuit shorted to
ground.
1. Headlamp feed circuit shorted to
ground.
1. Blown headlamp fuse.
2. Open circuit from headlamp fuse
to headlamp.
1. Failed DRLM
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 Z3-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 Z3-ground.
3. High resistance in fog lamp circuit.
CORRECTION
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.
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.
1. Trace short circuit and replace fuse.
Refer to Group 8W.
2. Repair open headlamp circuit, refer to
Group 8W.
1. Replace DRLM.
CORRECTION
1. Clean and secure battery cable clamps
and posts.
2. Adjust or replace generator 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 Z3-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 Z3-ground
locations. Refer to Group 8W.
3. Test amperage draw of fog lamp circuit.
DN