CHEVROLET PLYMOUTH ACCLAIM 1993 Service Manual

EXTERIOR LAMPSÐAP BODY INDEX
page page
Center High Mounted Stop Lamp (CHMSL)Ð AP/24-44-Body ......................... 21
Center High Mounted Stop Lamp BulbÐ AP/24-44-Body ......................... 21
Fog Lamp Bulb .......................... 21
Fog Lamps ............................. 21
Front Side Marker Lamp or Bulb ............. 20
Headlamp Bulb .......................... 19 Headlamp Diagnosis
...................... 19
Headlamp Housing ....................... 19
License Plate Lamp or Bulb ................ 20
Park and Turn Signal Lamp or Bulb .......... 20
Tail, Stop, Turn Signal, Back-Up and Side Marker Lamp ................................ 20
Tail, Stop, Turn Signal, Back-Up and Side Marker Lamp Bulbs ........................... 20
HEADLAMP DIAGNOSIS
For headlamp diagnosis, refer to the headlamp di-
agnosis chart at the beginning of this group. Refer to
Wiring Diagrams manual for circuit and component
locations.
HEADLAMP BULB
REMOVAL (FIG. 1)
(1) Left front bulb removal: Remove the windshield
washer reservoir upper mounting screw and position
reservoir rearward. (2) Disconnect wire connector from back of head-
lamp behind radiator closure panel.
CAUTION: Do not touch the bulb glass with fingers
or other oily surface, reduced bulb life will result.
(3) Rotate the bulb retaining ring counterclockwise
one quarter turn and remove the ring, bulb holder
and bulb from the lens assembly. The bulb holder
has alignment notches.
INSTALLATION
Reverse the preceding operation.
HEADLAMP HOUSING
RIGHT HEADLAMP REMOVAL (FIG. 1)
To remove the aero headlamp housing, perform
steps 1, 2 and 3 of bulb removal operation and pro-
ceed with the following steps. (1) From in the engine compartment, remove the
three headlamp assembly to body attaching nuts and
separate the lamp from the body. (2) Pull headlamp/lens assembly forward.
(3) Pull the lower section of the headlamp adjuster
cable from the lamp adjuster screw.
(4) Remove headlamp/lens assembly.
(5) Remove the four lamp/lens to headlamp bucket
screws. (6) Remove headlamp/lens.
INSTALLATION
Reverse the preceding operation.
LEFT HEADLAMP REMOVAL (FIG. 1)
(1) Disconnect battery cables, negative first, and
remove battery. (2) Remove the windshield washer reservoir upper
mounting screw and position reservoir rearward. (3) Remove the air cleaner intake tube.
(4) Remove screws holding Engine Controller to in-
ner fender flange. (5) Move Engine Controller rearward, leave wires
connected. (6) Remove air duct from front of Engine Control-
ler. (7) Disconnect wire connector from back of head-
lamp. (8) From in the engine compartment, remove nuts
holding headlamp housing to radiator closure panel. (9) Separate headlamp housing from radiator clo-
sure panel. (10) Pull headlamp housing forward.
(11) Pull the lower section of the headlamp ad-
juster cable from the lamp adjuster screw. (12) Separate headlamp from vehicle.
INSTALLATION
Reverse the preceding operation.
Fig. 1 Aero Headlamp
Ä LAMPS 8L - 19

PARK AND TURN SIGNAL LAMP OR BULB
REMOVAL (FIG. 2)
(1) Remove screws holding the park and turn sig-
nal lamp to the bumper facia. (2) Separate lamp from bumper fascia.
(3) Rotate the socket counterclockwise and remove
the socket from the lamp assembly. (4) Pull the bulb from the socket.
INSTALLATION
Reverse the preceding operation.
FRONT SIDE MARKER LAMP OR BULB
REMOVAL (FIG. 2)
(1) Locate back of side marker lamp behind
bumper fascia. (2) Rotate socket counterclockwise and remove the
socket and bulb from the lamp. (3) Pull bulb from socket if replacement is re-
quired. (4) Remove nuts holding side marker lamp to the
fascia and separate lamp from vehicle.
INSTALLATION
Reverse the preceding operation.
TAIL, STOP, TURN SIGNAL, BACK-UP AND SIDE
MARKER LAMP BULBS
REMOVAL (FIG. 3)
(1) Remove luggage compartment rear trim cover.
(2) Loosen and shift the quarter panel silencer out
of the way. (3) Rotate socket counterclockwise and separate
socket and bulb from lamp assembly. (4) Remove the bulb from the socket.
INSTALLATION
Reverse the preceding operation.
TAIL, STOP, TURN SIGNAL, BACK-UP AND SIDE
MARKER LAMP
REMOVAL (FIG. 3)
(1) Remove luggage compartment rear trim cover.
(2) Loosen and shift the quarter panel silencer out
of the way. (3) Rotate sockets counterclockwise and separate
sockets from lamp assembly. (4) Remove the lamp assembly to body retaining
nuts. (5) Remove the lamp assembly.
INSTALLATION
Reverse the preceding operation.
LICENSE PLATE LAMP OR BULB
REMOVAL (FIG. 4)
(1) Locate and remove two attaching screws hold-
ing the assembly to the tail panel. (2) Separate the lens from the lamp assembly.
(3) Remove bulb from socket assembly.
INSTALLATION
Reverse the preceding operation.
Fig. 2 Park, Turn Signal, and Side Marker Lamps
Fig. 3 Tail, Stop, Turn Signal, Side Marker and Back-Up Lamps
Fig. 4 License Plate LampÐTypical
8L - 20 LAMPS Ä

CENTER HIGH MOUNTED STOP LAMP BULBÐAP/
24-44-BODY
REMOVAL (FIG. 5)
(1) Remove the lower rear glass trim cover. Refer
to Group 23, Body. (2) Rotate lamp sockets counterclockwise and re-
move them from the lamp assembly. (3) Remove bulb from the socket.
INSTALLATION
Reverse the preceding operation.
CENTER HIGH MOUNTED STOP LAMP
(CHMSL)ÐAP/24-44-BODY
REMOVAL (FIG. 5)
(1) Remove the lower rear glass trim cover. Refer
to Group 23, Body. (2) Remove two attaching nuts from the assembly
mounting and lift the lamp from the bracket. (3) Remove bulbs from lamp.
(4) Remove lamp attaching nuts.
(5) Remove lamp assembly.
INSTALLATION
Reverse the preceding operation.
FOG LAMP BULB
REMOVAL
(1) From behind the front bumper support, rotate
the socket counterclockwise one quarter turn, and remove the
socket from lamp assembly. (2) Disconnect wire connector and remove bulb.
INSTALLATION
Reverse the preceding operation.
FOG LAMPS
REMOVAL (FIG. 6)
(1) Disconnect wire connector from back of lamp.
(2) Remove nut holding fog lamp to mounting
bracket. (3) Separate fog lamp from bumper fascia.
Fig. 5 Center High Mounted Stop LampÐAP/24-44- Body
Fig. 6 Fog Lamps
Ä LAMPS 8L - 21

EXTERIOR LAMPSÐAY-BODY INDEX
page page
Center High Mounted Stop Lamp ............ 24
Center High Mounted Stop Lamp Bulb (CHMSL) . 24
Cornering Lamp or BulbÐAY/C-P-Body ........ 24
Front Side Marker BulbÐAY/C-P-Body ........ 23
Front Side Marker LampÐAY/C-P-Body ....... 23
General Information ....................... 22
Headlamp Diagnosis ...................... 22 Headlamps
............................. 22
License Plate Lamp or BulbÐAY/C-P-Body ..... 24
Park, Turn Signal Lamp or BulbÐAY/C-P-Body . . 22
Sealed Beam ........................... 22
Tail, Stop, Turn Signal, Side Marker and Back-Up Lamp or BulbÐAY/C-P-Body .............. 24
GENERAL INFORMATION
To service exterior lamps on AY/C-S-Body, refer to
procedures covered in Exterior LampsÐAC-Body sec-
tion. AC/C-S-Body uses the same lamps as AY/C-S-
Body.
HEADLAMPS
Conventional and halogen sealed beams are inter-
changeable, It is not recommended that they be
mixed. The lens, filament and reflector of sealed
beams are molded into one unit.
HEADLAMP DIAGNOSIS
For headlamp diagnosis, refer to the headlamp di-
agnosis chart at the beginning of this Group. Refer to
Wiring Diagrams manual for circuit and component
locations.
SEALED BEAM
REMOVAL
(1) Turn the headlight switch ON.
(2) Open the hood and locate the power distribu-
tion center forward of the left front suspension tower
(Fig. 1). Remove the cover. (3) Remove the headlamp close relay (Fig. 2) to
prevent the headlamp doors from closing. (4) Turn the headlight switch OFF.
(5) Remove screws from headlamp bezel and re-
move bezel, if equipped. Do not disturb the headlamp adjusting screws.
(6) Remove screws from interior retaining ring
(Fig. 3), and remove ring. (7) Separate sealed beam from seat and disconnect
wire connector.
INSTALLATION
Reverse the preceding operation.
PARK, TURN SIGNAL LAMP OR BULBÐAY/C-P-
BODY
REMOVAL
(1) Open the headlamp doors. (2) Remove push-in fasteners holding lower park
and turn signal lamp shield to grille opening panel
(Fig. 4). (3) Remove screws holding park and turn signal
lamp grille opening panel (Fig. 5). (4) Remove sockets from lamp and pull bulbs from
sockets if bulbs replacement is required (Fig. 6).
Fig. 1 Power Distribution Center
Fig. 2 Headlamp Close Relay
8L - 22 LAMPS Ä

INSTALLATION
Reverse the preceding operation.
FRONT SIDE MARKER BULBÐAY/C-P-BODY
REMOVAL
(1) Raise vehicle.
(2) Reach over the top of cornering lamp (Fig. 7)
and remove bulb/socket (Fig. 8).
INSTALLATION
Reverse the preceding operation.
FRONT SIDE MARKER LAMPÐAY/C-P-BODY
REMOVAL (FIG. 7)
(1) Remove the cornering lamp retaining nuts, and
remove cornering lamp. (2) Remove the four nuts retaining the bumper
trim moulding to the body. (3) Remove bumper trim moulding.
(4) Remove side marker lamp.
INSTALLATION
Reverse the preceding operation.
Fig. 3 Sealed Beam ReplacementÐTypical
Fig. 4 Turn Signal Lamp Shield
Fig. 5 Turn Signal Lamp Mounting Screws
Fig. 6 Turn Signal Lamp
Fig. 7 Bumper Trim Moulding NutsÐAY/C-P-Body
Ä LAMPS 8L - 23

CORNERING LAMP OR BULBÐAY/C-P-BODY
REMOVAL (FIG. 8)
(1) Raise vehicle.
(2) Remove bulb.
(3) To remove lamp assembly, remove the two re-
taining nuts.
INSTALLATION
Reverse the preceding operation.
TAIL, STOP, TURN SIGNAL, SIDE MARKER AND
BACK-UP LAMP OR BULBÐAY/C-P-BODY
REMOVAL (FIG. 9)
(1) Open the trunk lid and remove the tail panel
trim cover attaching screws and position the trim
cover away from the tail panel. (2) Disconnect rear end lamp wire connector and
push the harness grommet outward through the tail
panel. (3) Remove rear lamp assembly attaching screws
and separate the lamp assembly from the body. (4) Remove bulbs from lamp assembly.
INSTALLATION
Reverse the preceding operation.
LICENSE PLATE LAMP OR BULBÐAY/C-P-BODY
REMOVAL
(1) Remove the two screws retaining the lamp to
the bumper guard. (2) Remove the bulb from the socket assembly.
INSTALLATION
Reverse the preceding operation.
CENTER HIGH MOUNTED STOP LAMP BULB
(CHMSL)
REMOVAL AND INSTALLATION
(1) Open deck lid.
(2) From under the parcel shelf, rotate socket
counterclockwise, and pull the CHMSL socket and
bulb from the lamp. (3) Pull bulb from the socket.
INSTALLATION
Reverse the preceding operation.
CENTER HIGH MOUNTED STOP LAMP
REMOVAL (FIG. 10)
(1) Remove parcel shelf trim cover. Refer to Group
23, Body. (2) Remove two CHMSL attaching screws and sep-
arate the lamp from the parcel shelf.
INSTALLATION
Reverse the preceding operation.
Fig. 8 Cornering LampÐAY/C-P-Body
Fig. 9 Rear End LightingÐAY/C-P-Body
Fig. 10 Center High Mounted Stop LampÐTypical
8L - 24 LAMPS Ä

EXTERIOR LAMP SYSTEMS INDEX
page page
Daytime Running LampÐCanada Only ........ 25
Headlamp Time Delay System .............. 26
Lamp Outage ModuleÐAA-Body ............. 25 Lamp Outage ModuleÐAll Except AA-Body
..... 25
Lamp Outage System ..................... 25
Removal (Fig. 4) ......................... 25
LAMP OUTAGE SYSTEM
Diagnostics and component relationships for AC,
AG, AJ or AY-Bodies can be found in the Body Di-
agnostic Procedures Manual, Electronic Vehicle In-
formation Center (EVIC) section. For circuit and component locations on AA-body,
refer to the Wiring Diagrams Manual.
LAMP OUTAGE MODULEÐALL EXCEPT AA-BODY
REMOVAL
(1) Remove battery negative cable.
(2) Remove the glove box assembly. Refer to Group
8E, Instrument Panel. (3) Disconnect the wire connector from the lamp
outage module. (4) Remove lamp outage module attaching screw
and remove the module from the vehicle (Figs. 1, 2
or 3).
INSTALLATION
Reverse the preceding operation.
LAMP OUTAGE MODULEÐAA-BODY
REMOVAL (FIG. 1)
(1) Remove battery negative cable
(2) Disconnect the wire connectors from the lamp
outage module. (3) Remove screws or clip holding lamp outage
module to instrument panel above glove compart-
ment (Fig. 1, 2 or 3). (4) Separate lamp outage module from vehicle.
INSTALLATION
Reverse the preceding operation.
DAYTIME RUNNING LAMPÐCANADA ONLY
DIAGNOSIS
For circuit and component locations refer to the
Wiring Diagrams manual.
REMOVAL (FIG. 4)
(1) Remove the left front inner fender shield, if
equipped, and disconnect the wire connector from the
day time running lamp module. (2) Remove daytime running lamp module attach-
ing screws and separate the module from the inner
fender support.INSTALLATION
Reverse the preceding operation.
Fig. 1 Lamp Outage ModuleÐAA-Body
Fig. 2 Lamp Outage ModuleÐAG and AJ-Body
Ä LAMPS 8L - 25

HEADLAMP TIME DELAY SYSTEM
SYSTEM OPERATION
The Body Controller controls the Headlamp Time
Delay system, if equipped. OPERATION:
By turning off the ignition switch first then off the
headlamp switch, the Body Controller will allow the
headlamps to remain ON for 60 seconds before they
automatically turn off and the headlamp doors close.
DIAGNOSIS
Refer to the Pre-diagnostic Test section of the ap-
propriate Body Diagnostic Procedures service man-
ual.
Fig. 3 Lamp Outage ModuleÐAC and AY-BodyFig. 4 Daytime Running Lamp ModuleÐCanada Only
8L - 26 LAMPS Ä

CONCEALED HEADLAMPS INDEX
page page
Concealed Headlamp MotorÐAC-Body ........ 29
Diagnostic Procedures ..................... 27
General Information ....................... 27 Headlamp DoorÐAC-Body
................. 29
Headlamp DoorÐAY Body ................. 29
Headlamp Drive MotorÐAY Body ............ 30
GENERAL INFORMATION
For proper operation of the Concealed Headlamp
System, refer to the Owner's Manual provided with
the vehicle.
The Concealed Headlamps are controlled by the Body
Controller (Fig. 1). Refer to Group 8E, Instrument
Panel for service procedures. The Body Controller re-
ceives input information from the ignition switch, head-
lamp switch, and the headlamp dimmer switch. The Body Controller also controls the headlamp doors
when the Passing Lights (manually flashing bright
lights) are used. With the headlamp switch turned off,
actuating the headlamp dimmer switch will signal the
Body Controller to open the headlamp doors. The oper-
ator then has two seconds to flash the bright lights be-
fore the Body Controller closes the headlamp doors.
Holding the headlamp dimmer switch in the engaged
position will signal the Body Controller to keep the
headlamp doors open until the dimmer switch is re-
leased. Actuating the headlamp dimmer switch with the
parking lamps ON signals the Body Controller to open
the headlamp doors and keep them open until the head-
lamp switch is turned off.
AY and AC vehicles use a single motor, centrally
located behind the radiator grille, and linked to the
headlamp doors by a torsion bar. Refer to Service
Procedures for more information. The headlamp door drive motors are equipped with
a manual override hand wheel to open or close the
headlamp doors if a failure should occur or servicing
is required. Access to the handwheel can be gained
through a flap covered hole in the sight shield be-
hind the bumper fascia, and under the hood. Several
revolutions of the handwheel may be required to
move the headlamp doors.
DIAGNOSTIC PROCEDURES
Before diagnosing a problem with the headlamp
doors, check for possible collision damage, binding,
improperly installed assemblies, or freezing weather
conditions. When diagnosing an electrical problem, refer to:
² The Concealed Headlamps Electrical Diagnosis
chart in this section.
² The Wiring Diagrams Manual.
² The Headlamp Doors System section of the appro-
priate Body Diagnostic Procedures Manual.
PROBLEM
One headlamp door is inoperative when the head-
lamp switch is ON and the ignition switch is in the
RUN position. The other headlamp door operates
normally.
AC OR AY-VEHICLE BODY CHECK:
² Headlamp door pivot and crank for seizure.
² Headlamp torsion bar sleeve or clip for excessive
wear or breakage.
² Headlamp door crank for missing or broken screw.
² Headlamp torsion bar for disengagement or break-
age.
PROBLEM
Headlamp door operates erratically.
CHECK:
² For freezing weather conditions.
² For excessive effort to move headlamp door pivots.
² For corrosion or improperly aligned components.
² For stripped motor reduction gears.
² For defective body controller. Refer to the Con-
cealed Headlamp Electrical Diagnosis chart in this
section. Also refer to the Wiring Diagrams Manual
and Body Diagnostic Procedures Manual.
Fig. 1 Body Controller
Ä LAMPS 8L - 27

CONCEALED HEADLAMPSÐELECTRICAL DIAGNOSIS
8L - 28 LAMPS Ä