nating and indicating purposes. A circuit must have a
good ground to be complete. Circuit ground occurs
when the lamp socket makes contact with the metal
body. On vehicles with plastic lamps, a wire between
the socket and the body makes the grounds.

When changing lamp bulbs, check the socket for

corrosion. If corrosion is present, clean contacts with a
wire brush and coat the inside of the socket with
Mopar

t Multi-purpose Grease or equivalent.

CAUTION: Do not touch the glass of halogen bulbs
with fingers or any possibly oily surface, reduced
bulb life will result.

BODY IDENTIFICATION

Throughout this Group, references are made to the

vehicle family or body code. To decode the vehicle
identification plates, refer to the Introduction Section
at the front of this manual.

DIAGNOSTIC PROCEDURES

Begin electrical system failure diagnosis by testing

all related fuses and circuit breakers in the fuse block
and engine compartment.

When a vehicle experiences problems with the head-

lamp system, verify the condition of the battery con-
nections, charging system, headlamp bulbs, wire con-
nectors, relay, high beam dimmer switch and headlamp
switch. Refer to Wiring Diagrams manual for compo-
nent locations and circuit information.

SYMPTOM

Headlamps are dim when engine is idling of

with ignition turned OFF. Canada cars must
have lamps ON.

ACTION
• Clean battery terminal clamps and posts. Refer to
Group

8B,

Battery/Starter/Generator

Service

for

proper procedures.
• Test charging system output. Refer to Group 8A,
Battery/Starting/Charging Systems Diagnostics for
proper testing procedures.
• Test for high resistance in headlamp circuits.

• Defective headlamp bulb.

SYMPTOM

Bulbs burn out frequently.

ACTION
• Test charging system output. Refer to Group 8A,
Battery/Starting/Charging Systems Diagnostics for
proper testing procedures.
• Check for loose or corroded connector terminals or
splices in headlamp circuits. Refer to Wiring Diagrams
manual for component and splice locations.

SYMPTOM

Headlamps are dim with engine running above

idle. Canada cars must have lamps ON.

ACTION
• Test charging system output. Refer to Group 8A,
Battery/Starting/Charging Systems Diagnostics for
proper testing procedures.
• Test for high resistance in headlamp circuits.

• Defective headlamp bulb.

SYMPTOM

Headlamps flash randomly.

ACTION
• Test for poor circuit ground.

• Test for high resistance in headlamp circuits.

LAMPS

8L - 1

• Test condition of headlamp relay.

• Check for loose or corroded connector terminals or
splices in headlamp circuits. Refer to Wiring Dia-
grams manual for component and splice locations.

SYMPTOM

Headlamps do not illuminate.

ACTION
• Test for voltage at headlamp bulbs connectors.

• Test headlamp relay.

• Test headlamp switch.

• Test high-beam headlamp dimmer switch.

• Check for loose or corroded connector terminals or
splices in headlamp circuits. Refer to Wiring Dia-
grams manual for component and splice locations.

FOG LAMP DIAGNOSIS

The fog lamp system receives voltage from the

headlamp relay when the low-beam headlamps are

turned ON. The high-beam headlamp dimmer switch
when actuated cancels out voltage feed to the fog
lamp circuit. The fog lamp circuit is protected by a
20 amp fuse located in the fuse panel. Refer to Wir-
ing Diagrams manual for component location and cir-
cuit information.

SYMPTOM

Fog lamps do not illuminate.

ACTION
• Test fog lamp bulb.

• Test for voltage at fog lamp connector.

• Test for proper fog lamp ground.

• Test circuit fuse.

• Test fog lamp switch.

• Test high-beam headlamp dimmer switch.

• Test headlamp relay.

• Test for open circuit in wire harness.

8L - 2

LAMPS

EXTERIOR LAMP SWITCHES AND HEADLAMP ALIGNMENT

INDEX

page

Headlamp Adjustment Using Alignment Screen

. . . . 3

Headlamp Alignment

. . . . . . . . . . . . . . . . . . . . . . . 3

Headlamp Alignment Preparation

. . . . . . . . . . . . . . 3

Headlamp Dimmer Switch

. . . . . . . . . . . . . . . . . . . 3

Headlamp Switch

. . . . . . . . . . . . . . . . . . . . . . . . . . 3

HEADLAMP SWITCH

Service procedures for the headlamp switch can be

found in Group 8E, Instrument Panel and Gauges. More
information can be found in Wiring Diagrams manual.

HEADLAMP DIMMER SWITCH

The headlamp dimmer switch is incorporated into

the turn signal switch. Proper procedures can be found
in Group 8J, Turn Signal and Flashers. More informa-
tion can be found in Group 8W, Wiring Diagrams.

HEADLAMP ALIGNMENT

Headlamps can be aligned using the screen method

provided in this section. Alignment Tool C4466-A or
equivalent can also be used. Refer to instructions
provided with the tool for proper procedures. The
preferred headlamp alignment setting is 0 for the
left/right adjustment and 0 for the up/down ad-
justment.

HEADLAMP ALIGNMENT PREPARATION

(1) Verify headlamp dimmer switch and high beam

indicator operation.

(2) Inspect and correct damaged or defective compo-

nents that could interfere with proper headlamp align-
ment.

(3) Verify proper tire inflation.
(4) Clean headlamp lenses.
(5) Verify that luggage area is not heavily loaded.
(6) Fuel tank should be FULL. Add 2.94 kg (6.5 lbs.)

of weight over the fuel tank for each estimated gallon of
missing fuel.

HEADLAMP ADJUSTMENT USING ALIGNMENT
SCREEN

ALIGNMENT SCREEN PREPARATION (FIG. 1
AND 2)

(1) Position vehicle on a level surface perpendicular

to a flat wall 7.62 meters (25 ft) away from front of
headlamp lens.

(2) If necessary, tape a line on the floor 7.62 meters

(25 ft) away from and parallel to the wall.

(3) From the floor up 1.27 meters (5 ft), tape a line on

the wall at the centerline of the vehicle. Sight along the
centerline of the vehicle (from rear of vehicle forward) to
verify accuracy of the line placement.

(4) Rock vehicle side-to-side three times to allow

suspension to stabilize.

(5) Jounce front suspension three times by pushing

downward on front bumper and releasing.

(6) Measure the distance from the center of head-

lamp lens to the floor. Transfer measurement to the
alignment screen (with tape). Use this line for up/down
adjustment reference.

(7) Measure distance from the centerline of the ve-

hicle to the center of each headlamp being aligned.
Transfer measurements to screen (with tape) to each
side of vehicle centerline. Use these lines for left/right
adjustment reference.

HEADLAMP ADJUSTMENT (FIG. 3, 4, 5, 6 OR
7)

A properly aimed low beam headlamp will project the

top edge of low beam hot spot on the alignment screen
from 50 mm (2 in.) above to 50 mm (2 in.) below the
headlamp centerline. The side-to-side left edge of low
beam hot spot should be from 50 mm (2 in.) left to
50mm (2 in.) right of headlamp centerline (Fig. 1). The
preferred headlamp alignment is 0 for the
up/down adjustment and 0 for the left/right ad-
justment. The high beams on a vehicle with aero
headlamps cannot be aligned. The high beam pattern
should be correct when the low beams are aligned
properly.

To adjust headlamp alignment, rotate alignment

screws to achieve the specified low beam hot spot
pattern.

CAUTION: Do not cover an illuminated headlamp for
more then 15 seconds. Lamp will overheat and burn
or melt cover.

To adjust headlamps, rotate alignment screws to

achieve the specified high intensity pattern (Fig. 1 or
2).

FOG LAMP ALIGNMENT (FIG. 8)

Prepare an alignment screen. Refer to Alignment

Screen Preparation paragraph in this section. A prop-
erly aligned fog lamp will project a pattern on the
alignment screen 100 mm (4 in.) below the fog lamp
centerline and straight ahead.

LAMPS

8L - 3

Fig. 1 Headlamp Alignment Screen Low Beam Pattern

Fig. 2 Sealed Beam Alignment High Beam Pattern

8L - 4

LAMPS

Content .. 333 334 335 336 ..