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EPL_8L


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PL                                                                                                        LAMPS        8L - 1



                                                       LAMPS
                                                      CONTENTS

                                                       page                                                              page

BULB APPLICATION . . . . . . . . . . . . . . . . . . . . . 15   LAMP DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . 1
HEADLAMP ALIGNMENT . . . . . . . . . . . . . . . . . . 5        LAMP SERVICE . . . . . . . . . . . . . . . . . . . . . . . . 11
LAMP BULB SERVICE . . . . . . . . . . . . . . . . . . . . 8     LAMP SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . 14



                                              LAMP DIAGNOSIS

                                                           INDEX
                                                       page                                                              page

GENERAL INFORMATION                                             DIAGNOSIS AND TESTING
 DAYTIME RUNNING LAMP MODULE . . . . . . . . . 1                  DIAGNOSTIC PROCEDURES . . . . . . . . . . . . . . 1
 GENERAL INFORMATION . . . . . . . . . . . . . . . . . 1          FOG LAMP DIAGNOSIS . . . . . . . . . . . . . . . . . . . 4
 SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . 1         HEADLAMP DIAGNOSIS . . . . . . . . . . . . . . . . . . 2

GENERAL INFORMATION                                               When it is necessary to remove components to ser-
                                                                vice another, it should not be necessary to apply
GENERAL INFORMATION                                             excessive force or bend a component to remove it.
  Each vehicle is equipped with various lamp assem-             Before damaging a trim component, verify hidden
blies. A good ground is necessary for proper lighting           fasteners or captured edges are not holding the com-
operation. Grounding is provided by the lamp socket             ponent in place.
when it comes in contact with the metal body, or
through a separate ground wire.                                 DAYTIME RUNNING LAMP MODULE
  When changing lamp bulbs check the socket for                   PL vehicles built for use in Canada are equipped
corrosion. If corrosion is present, clean it with a wire        with a Daytime Running Lamp (DRL) system. The
brush and coat the inside of the socket lightly with            DRL system operates the headlamps at 50% illumi-
Mopar Multi-Purpose Grease or equivalent.                       nation with the headlamp switch OFF, park brake
                                                                released and the ignition ON. The DRL system is
SAFETY PRECAUTIONS                                              controlled by the Daytime Running Lamp Module.
                                                                The DRL module overrides the headlamp switch
WARNING: EYE PROTECTION SHOULD BE USED                          when the headlamps are turned OFF. The headlamps
WHEN SERVICING GLASS COMPONENTS. PER-                           operate normally when the headlamps are turned
SONAL INJURY CAN RESULT.                                        ON.


CAUTION: Do not touch the glass of halogen bulbs                DIAGNOSIS AND TESTING
with fingers or other possibly oily surface, reduced
bulb life will result.                                          DIAGNOSTIC PROCEDURES
  Do not use bulbs with higher candle power than                   When a vehicle experiences problems with the
indicated in the Bulb Application table at the end of           headlamp system, verify the condition of the battery
this group. Damage to lamp can result.                          connections, charging system, headlamp bulbs, wire
  Do not use fuses, circuit breakers or relays hav-             connectors, relay, high beam dimmer switch and
ing greater amperage value than indicated on the                headlamp switch. Refer to Group 8W, Wiring Dia-
fuse panel or in the Owners Manual.                             grams for component locations and circuit informa-
                                                                tion.
8L - 2   LAMPS                                       PL
DIAGNOSIS AND TESTING (Continued)
HEADLAMP DIAGNOSIS
  Always begin any diagnosis by testing all of the
fuses and circuit breakers in the system. Refer to
Group 8W, Wiring Diagrams.
  Conventional and halogen headlamps are inter-
changeable. It is recommended that they not be
intermixed on a given vehicle.
PL                                                                                               LAMPS       8L - 3
DIAGNOSIS AND TESTING (Continued)
.
                                            HEADLAMP DIAGNOSIS

              CONDITION                       POSSIBLE CAUSES                           CORRECTION
    HEADLAMPS ARE DIM WITH             1. Loose or corroded battery          1. Clean and secure battery cable
    ENGINE IDLING OR IGNITION          cables.                               clamps and posts.
    TURNED OFF.                        2. Loose or worn generator drive      2. Adjust or replace generator drive
                                       belt.                                 belt.
                                       3. Charging system out too low.       3. Test and repair charging system,
                                                                             refer to Group 8A.
                                       4. Battery has insufficient charge.   4. Test battery state-of-charge, refer
                                                                             to Group 8A.
                                       5. Battery is sulfated or shorted.    5. Load test battery, refer to Group
                                                                             8A.
                                       6. Poor lighting circuit Z1-ground.   6. Test for voltage drop across
                                                                             Z1-ground locations, refer to Group
                                                                             8W.
                                       7. Both headlamp bulbs defective.     7. Replace both headlamp bulbs.
    HEADLAMP BULBS BURN OUT            1. Charging system output too high.   1. Test and repair charging system,
    FREQUENTLY.                                                              refer to Group 8A.
                                       2. Loose or corroded terminals or     2. Inspect and repair all connectors
                                       splices in circuit.                   and splices, refer to Group 8W.
    HEADLAMPS ARE DIM WITH             1. Charging system output too low.    1. Test and repair charging system,
    ENGINE RUNNING ABOVE IDLE.*                                              refer to Group 8A.
                                       2. Poor headlamp circuit ground.      2. Test voltage drop across
                                                                             Z1-ground, refer to Group 8W.
                                       3. High resistance in headlamp        3. Test amperage draw of headlamp
                                       circuit.                              circuit.
                                       4. Both headlamp bulbs defective.     4. Replace both headlamp bulbs.
    HEADLAMPS FLASH RANDOMLY.          1. Poor headlamp circuit ground.      1. Repair circuit ground, refer to
                                                                             Group 8W.
                                       2. High resistance in headlamp        2. Test amperage draw of headlamp
                                       circuit.                              circuit.
                                       3. Faulty headlamp switch circuit     3. Replace headlamp switch.
                                       breaker.
                                       4. Loose or corroded terminals or     4. Repair connector terminals or
                                       splices in circuit.                   splices, refer to Group 8W.
    HEADLAMPS DO NOT                   1. No voltage to headlamps.           1. Replace fuse, refer to Group 8W.
    ILLUMINATE.                        2. No ground at headlamps.            2. Repair circuit ground, refer to
                                                                             Group 8W.
                                       3. Faulty headlamp switch.            3. Replace headlamp switch.
                                       4. Faulty headlamp dimmer switch.     4. Replace headlamp dimmer
                                                                             switch.
                                       5. Broken connector terminal or       5. Repair connector terminal or wire
                                       wire splice in headlamp circuit.      splices.
    * Canada vehicles must have lamps ON.
8L - 4   LAMPS                                                                                        PL
DIAGNOSIS AND TESTING (Continued)
FOG LAMP DIAGNOSIS
          CONDITION                 POSSIBLE CAUSES                           CORRECTION
FOG LAMPS ARE DIM WITH       1. Loose or corroded battery          1. Clean and secure battery cable
ENGINE IDLING OR IGNITION    cables.                               clamps and posts.
TURNED OFF.                  2. Loose or worn generator drive      2. Adjust or replace generator drive
                             belt.                                 belt.
                             3. Charging system output too low.    3. Test and repair charging system,
                                                                   refer to Group 8A.
                             4. Battery has insufficient charge.   Test battery state-of-charge, refer to
                                                                   Group 8A.
                             5. Battery is sulfated or shorted.    5. Load test battery, refer to Group
                                                                   8A.
                             6. Poor lighting circuit Z1-ground.   6. Test for voltage drop across
                                                                   Z1-ground locations, refer to Group
                                                                   8W.
                             7. Both fog lamp bulbs defective.     7. Replace both lamp bulbs.
FOG LAMP BULBS BURN OUT      1. Charging system output too high.   1. Test and repair charging system,
FREQUENTLY.                                                        refer to Group 8A.
                             2. Loose or corroded terminals or     2. Inspect and repair all connectors
                             splices in circuit.                   and splices, refer to Group 8W.
FOG LAMPS ARE DIM WITH       1. Charging system output too low.    1. Test and repair charging system,
ENGINE RUNNING ABOVE IDLE.                                         refer to Group 8A.
                             2. Poor fog lamp circuit ground.      2. Test voltage drop across
                                                                   Z1-ground, refer to Group 8W.
                             3. High resistance in fog lamp        3. Test amperage draw of fog lamp
                             circuit.                              circuit.
                             4. Both fog lamp bulbs defective.     4. Replace both fog lamp bulbs.
FOG LAMPS FLASH RANDOMLY.    1. Poor fog lamp circuit ground.      1. Repair circuit ground, refer to
                                                                   Group 8W.
                             2. High resistance in fog lamp        2. Test amperage draw of fog lamp
                             circuit.                              circuit.
                             3. Faulty fog lamp switch circuit     3. Replace fog lamp switch.
                             breaker.
                             4. Loose or corroded terminals or     4. Repair connector terminals or
                             splices in circuit.                   splices, refer to Group 8W.
FOG LAMPS DO NOT             1. Blown fuse for log lamps.          1. Replace fuse, refer to Group 8W.
ILLUMINATE.                  2. No ground at fog lamps.            2. Repair circuit ground, refer to
                                                                   Group 8W.
                             3. Faulty fog lamp switch.            3. Replace fog lamp switch.
                             4. Broken connector terminal or       4. Repair connector terminal or wire
                             wire splice in fog lamp circuit.      splices.
PL                                                                                                        LAMPS          8L - 5


                                      HEADLAMP ALIGNMENT

                                                       INDEX
                                                   page                                                                   page

GENERAL INFORMATION                                          HEADLAMP ADJUSTMENT USING ALIGNMENT
 HEADLAMP ALIGNMENT . . . . . . . . . . . . . . . . . . 5      SCREEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SERVICE PROCEDURES                                          SPECIAL TOOLS
 HEADLAMP ALIGNMENT PREPARATION . . . . . . 5                SPECIAL TOOLS--HEADLAMP ALIGNMENT . . . 7
ADJUSTMENTS
 FOG LAMP ALIGNMENT . . . . . . . . . . . . . . . . . . 5

GENERAL INFORMATION                                           (4) Rock vehicle side-to-side three times to allow
                                                            suspension to stabilize.
HEADLAMP ALIGNMENT                                            (5) Jounce front suspension three times by pushing
  Headlamps can be aligned using the screen method          downward on front bumper and releasing.
provided in this section. Alignment Tool C4466-A or           (6) Measure the distance from the center of head-
equivalent can also be used. Refer to instructions          lamp lens to the floor. Transfer measurement to the
provided with the tool for proper procedures. The           alignment screen (with tape). Use this line for
preferred headlamp alignment setting is 0 for               up/down adjustment reference.
the left/right adjustment and 0 for the up/down               (7) Measure distance from the centerline of the
adjustment.                                                 vehicle to the center of each headlamp being aligned.
                                                            Transfer measurements to screen (with tape) to each
SERVICE PROCEDURES                                          side of vehicle centerline. Use these lines for left/
                                                            right adjustment reference.
HEADLAMP ALIGNMENT PREPARATION                              HEADLAMP ADJUSTMENT
  (1) Verify headlamp dimmer switch and high beam             A properly aimed low beam headlamp will project
indicator operation.                                        the top edge of low beam hot spot on the alignment
  (2) Inspect and correct damaged or defective com-         screen from 50 mm (2 in.) above to 50 mm (2 in.)
ponents that could interfere with proper headlamp           below the headlamp centerline. The side- to-side left
alignment.                                                  edge of low beam hot spot should be from 50 mm (2
  (3) Verify proper tire inflation.                         in.) left to 50mm (2 in.) right of headlamp centerline
  (4) Clean headlamp lenses.                                (Fig. 1). The preferred headlamp alignment is 0
  (5) Verify that luggage area is not heavily loaded.       for the up/down adjustment and 0 for the left/
  (6) Fuel tank should be FULL. Add 2.94 kg (6.5            right adjustment. The high beams on a vehicle
lbs.) of weight over the fuel tank for each estimated       with aero headlamps cannot be aligned. The high
gallon of missing fuel.                                     beam pattern should be correct when the low beams
                                                            are aligned properly.
ADJUSTMENTS                                                   To adjust headlamp alignment, rotate alignment
                                                            screws to achieve the specified low beam hot spot
HEADLAMP ADJUSTMENT USING ALIGNMENT                         pattern.
SCREEN                                                      FOG LAMP ALIGNMENT
                                                              Prepare an alignment screen. Refer to Alignment
ALIGNMENT SCREEN PREPARATION                                Screen Preparation paragraph in this section. Disen-
  (1) Position vehicle on a level surface perpendicu-       gage the wire connectors from the back of the head-
lar to a flat wall 7.62 meters (25 ft) away from front      lamp bulbs to disable the headlamps. This will allow
of headlamp lens (Fig. 1).                                  a more accurate projection reading of the fog lamps.
  (2) If necessary, tape a line on the floor 7.62           Turn on the headlamp switch and actuate the fog
meters (25 ft) away from and parallel to the wall.          lamp switch. A properly aligned fog lamp will project
  (3) From the floor up 1.27 meters (5 ft), tape a line     a pattern on the alignment screen 100 mm (4 in.)
on the wall at the centerline of the vehicle. Sight         below the fog lamp centerline and straight ahead
along the centerline of the vehicle (from rear of vehi-     (Fig. 2).
cle forward) to verify accuracy of the line placement.
     VEHICLE CENTER LINE           (25 FT.)
                                        HEADLAMP HEADLAMP OF
                                                   CENTER
                                                   FLOOR
                                               OF LINE
                             7.62 METERS FRONTTER CEN-HEADLAMP
                                                            TO



8L - 6      LAMPS                                                                       PL
SPECIAL TOOLS (Continued)




   CENTER   LINE        FOG
                       7.62 METERSCENTER LINE HOT SPOT
                   OF LAMPS (25 FT.) FOG LAMP OF VEHICLE LAMP INS.
                                       FLOOR TOOF FOG
                                           FRONT CENTER LAMPFOG
                                                             4




                                            Fig. 1 Headlamp Alignment Screen--Typical




                                                     Fig. 2 Lamp Alignment Screen
PL                                    LAMPS   8L - 7


SPECIAL TOOLS
SPECIAL TOOLS--HEADLAMP ALIGNMENT




       Headlamp Aiming Kit C-4466



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