Dodge 2001 Ram 1500 Owner's Manual page 612

BR/BE
HEADLAMP (Continued)
CONDITION
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.
QUAD LAMPS DO NOT
ILLUMINATE AND HIGH
BEAMS ILLUMINATE.
HEADLAMP SWITCH OFF
HEADLAMPS AND
HIGHBEAM INDICATOR
REMAIN ON AND ARE
DIM.
HEADLAMP SWITCH ON
(LOW BEAMS ON), ONE
LOW BEAM ON AND
BOTH HIGH BEAMS DIM.
POSSIBLE CAUSES
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. No voltage at either headlamp.
2. No ground for Quad beam circuit.
3. If voltage and ground are present,
bulb(s) is defective.
1. Headlamp switch feed circuit
shorted to ground.
1. Headlamp feed circuit shorted to
ground.
LAMPS/LIGHTING - EXTERIOR
CORRECTION
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.
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.
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.
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.
1. Voltage should always be present. Check
Quad lamp fuse. Check wiring circuit from
Quad lamp fuse to Quad lamp. Repeat for
left side
2. Ground should be present according to
Multifunction switch position. Check ground
at quad lamp relay. Check for battery
voltage at quad lamp relay. Check quad
lamp relay. Check relay control circuit (relay
coil to high beam).
3.
Replace bulb(s).
1. Check wiring circuit from right headlamp
fuse to headlamp. Repeat for left side.
Trace short circuit in wiring and repair.
1. Check wiring circuit from right headlamp
fuse to headlamp. Repeat for left side.
Trace short circuit in wiring and repair.
8L - 15