1993 CHEVROLET DYNASTY turn signal

EXTERIOR LAMPSÐAC BODY INDEX
page page
Aero Headlamp Bulb ...................... 10
Aero Headlamp Housing ................... 11
Aero HeadlampsÐAC/D-Body ............... 10
Center High Mounted Stop Lamp (CHMSL) ..... 13
Center High-Mounted Stop Lamp (CHMSL) Bulb . 13
Cornering Lamp Assembly .................. 12
Cornering Lamp Bulb ..................... 12
Front Side Marker BulbÐAC/C-Body .......... 12
Front Side Marker LampÐAC/C-Body ......... 12
Headlamp Diagnosis ...................... 10 Headlamp Sealed BeamÐAC/C Body
......... 10
License Plate Lamp/Bulb ................... 13
Park/Turn Signal Lamp or BulbÐAC/C-Body .... 11
Park/Turn Signal Lamp or BulbÐAC/D-Body .... 11
Rear Side Marker Lamp BulbÐAC/C-Body ..... 13
Rear Side Marker LampÐAC/C-Body ......... 13
Tail, Stop, Turn Signal, Back-Up and Side Marker LampÐAC/D-Body ...................... 12
Tail, Stop, Turn Signal, Back-Up LampÐAC/C or AY/S-Body ............................ 12
HEADLAMP DIAGNOSIS
Refer to the Headlamp Diagnosis at the beginning of
this Group. Refer to Wiring Diagrams Manual for
circuit and component locations.
HEADLAMP SEALED BEAMÐAC/C BODY
REMOVAL
(1) Turn the headlight switch ON.
(2) Open the hood and locate the Power Distribution
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 remove
bezel, if equipped. (6) Remove screws from interior retaining ring (Fig.
3), and remove ring. Do not disturb the headlamp adjusting screws.
(7) Pull out sealed beam unit and unplug connector.
INSTALLATION
Reverse the preceding operation.
AERO HEADLAMPSÐAC/D-BODY
Lens fogging is a normal condition and does
not require service, as moisture will vent from
tubes behind the lens.
AERO HEADLAMP BULB
REMOVAL (FIG. 4)
(1) Locate and remove the wire connector behind the
headlamp assembly in the engine compartment.
CAUTION: Do not touch the bulb with fingers or any
possibly oily surface, reduced bulb life will result. (2) Rotate the bulb retaining ring counterclockwise
one quarter turn and remove the ring, bulb and bulb
holder from the lens assembly. The bulb holder has
alignment notches.
INSTALLATION
Reverse the preceding operation.
Fig. 1 Power Distribution Center
Fig. 2 Headlamp Close Relay
8L - 10 LAMPS Ä

AERO HEADLAMP HOUSING
REMOVAL (FIG. 4 AND 5)
To remove the aero headlamp housing, perform
steps (1) and (2) of bulb removal operation and pro-
ceed with the following procedures. (1) The battery may have to be removed to replace
the left front headlamp bulb or lens. (2) From inside the engine compartment, unsnap
the headlamp adjuster cables from the headlamp ad-
juster screws. (3) Remove the four headlamp lens attaching nuts
from behind the grille opening panel, and remove the
lamp housing from the vehicle.
INSTALLATION
Reverse the preceding operation.
PARK/TURN SIGNAL LAMP OR BULBÐAC/D-BODY
REMOVAL (FIG. 6)
(1) Remove nut holding park turn signal lamp to
the GOP through an access hole in the radiator clo-
sure panel from behind the lamp. (2) Separate the park and turn signal lamp from
the GOP. (3) Remove the socket from the lamp
(4) Pull the bulb from the socket if bulb replace-
ment is required.
INSTALLATION
Reverse the preceding operation.
PARK/TURN SIGNAL LAMP OR BULBÐAC/C-BODY
REMOVAL (FIG. 7)
(1) Remove the two park and turn signal lamp at-
taching screws. (2) Separate the lamp from the front bumper fascia
and remove the bulb and socket assembly.
Fig. 3 Sealed Beam ReplacementÐTypical
Fig. 4 Aero HeadlampÐAC/D-Body
Fig. 5 Headlamp Adjuster CablesÐAC/D-Body
Fig. 6 Park, Turn Signal, Cornering and Side Marker LampsÐAC/D-Body
Ä LAMPS 8L - 11

INSTALLATION
Reverse the preceding operation.
FRONT SIDE MARKER BULBÐAC/C-BODY
REMOVAL (FIG. 7)
(1) Reach behind the front fender and rotate the
socket counterclockwise. Pull the socket from the
lamp body. (2) Remove the bulb from the socket.
INSTALLATION
Reverse the preceding operation.
FRONT SIDE MARKER LAMPÐAC/C-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.
CORNERING LAMP BULB
REMOVAL (FIG. 6 OR 7)
(1) Reach behind the front fender and rotate the
socket assembly counterclockwise. (2) Pull the socket out of the lamp body.
(3) Remove the bulb from the socket.
INSTALLATION
Reverse the preceding operation.
CORNERING LAMP ASSEMBLY
REMOVAL (FIG. 6 OR 7)
(1) Remove the bulb and socket assembly from the
lamp body. (2) Remove nuts securing the lamp assembly to the
cornering lamp bezel. (3) Pull the lamp from the bezel.
INSTALLATION
Reverse the preceding operation.
TAIL, STOP, TURN SIGNAL, BACK-UP
LAMPÐAC/C OR AY/S-BODY
REMOVAL (FIG. 8)
(1) Open trunk lid.
(2) Remove screws holding tail lamp to quarter
panel extension. (3) Separate lamp from vehicle.
(4) Rotate the bulb sockets counterclockwise and
pull the sockets from the lamp. (5) Pull bulb from socket if bulb replacement is re-
quired.
INSTALLATION
Reverse the preceding operation.
TAIL, STOP, TURN SIGNAL, BACK-UP AND SIDE
MARKER LAMPÐAC/D-BODY
REMOVAL (FIG. 9)
(1) Raise deck lid and remove closure panel lower
trim cover. (2) Remove tail lamp attaching wing nuts from be-
hind the rear closure panel.
Fig. 7 Park, Turn Signal, Cornering, and Side Marker LampsÐAC/C or AY/C-S-Body
Fig. 8 Tail, Stop, Turn Signal, Back-Up, and SideMarker LampsÐAC/C or AY/C-S Body
8L - 12 LAMPS Ä

EXTERIOR LAMPSÐAG BODY INDEX
page page
Back-Up Lamps .......................... 15
Center High Mounted Stop Lamp Bulb ........ 15
Fog Lamp or Bulb ........................ 14
Headlamp Diagnosis ...................... 14
Headlamp Housing and Bulb ................ 14 License Plate Lamp or Bulb
................ 15
Park and Turn Signal Lamp or Bulb .......... 14
Tail, Stop, Turn Signal, Side Marker, Back-Up Lamp ................................ 15
HEADLAMP DIAGNOSIS
For headlamp diagnosis, refer to the Headlamp Di-
agnosis at the beginning of this Group. Refer to Wir-
ing Diagrams manual for circuit and component
locations.
HEADLAMP HOUSING AND BULB
REMOVAL (FIG. 1)
(1) Raise hood.
(2) Disengage fasteners holding sight shield flaps
to headlamp mounting panel. Refer to Group 23,
Body for instructions. (3) Remove nuts holding lamp housing to head-
lamp mounting panel. (4) Separate lamp from mounting panel.
(5) Disconnect wire connectors from lamp sockets
behind lamp. (6) Separate lamp housing from vehicle.
CAUTION: Do not touch the bulb glass with fingers
or other oily surfaces, reduced bulb life will result. (7) Rotate sockets counterclockwise and pull bulb
unit from lamp.
INSTALLATION
Reverse the preceding operation.
PARK AND TURN SIGNAL LAMP OR BULB
REMOVAL (FIG. 1)
(1) Remove headlamp housing.
(2) Remove the bulb and socket assembly from the
lamp. Pull bulb from socket if bulb replacement is re-
quired.
(3) Remove screws holding park and turn signal
lamp to headlamp housing.
INSTALLATION
Reverse the preceding operation.
FOG LAMP OR BULB
REMOVAL (FIG. 2 AND 3)
(1) Remove screws holding fog lamp to front fascia.
(2) Disengage tabs holding cover to back of fog lamp.
(3) Separate cover from lamp.
(4) Disengage bulb retainer clip from tabs on back
of lamp. Separate clip from lamp. (5) Pull bulb from lamp.
CAUTION: Do not touch the bulb glass with fingers or
other oily surface, as reduced bulb life will result.
INSTALLATION
Reverse the preceding operation. Refer to Fog
Lamp Alignment procedures in this group.
Fig. 1 Aero HeadlampFig. 2 Fog Lamp
8L - 14 LAMPS Ä

TAIL, STOP, TURN SIGNAL, SIDE MARKER,
BACK-UP LAMP
The lamp must be separated from the rear closure
panel to replace the bulbs.
REMOVAL (FIG. 4)
(1) Remove rear lift gate scuff plate.
(2) Remove screws holding tail lamp to rear clo-
sure panel. (3) Separate the lamp from rear closure panel.
(4) Rotate sockets counterclockwise and separate
sockets from tail lamp. (5) Pull bulb from socket if bulb replacement is re-
quired.
INSTALLATION
Reverse the preceding operation.
CENTER HIGH MOUNTED STOP LAMP BULB
REMOVAL
(1) Open the lift gate.
(2) Remove the lower scuff plate, reach behind the
closure panel, and rotate the bulb and socket coun-
terclockwise and separate socket from the lamp. (3) Remove bulb from socket.
INSTALLATION
Reverse the preceding operation.
LICENSE PLATE LAMP OR BULB
REMOVAL (FIG. 5)
(1) Remove screws holding license plate lamp to
the rear closure above the license plate. (2) Separate the lamp from the rear closure panel.
(3) Remove socket from the lamp and pull bulb
from socket if bulb replacement is required.
INSTALLATION
Reverse the preceding operation.
BACK-UP LAMPS
REMOVAL (FIG. 6)
(1) Remove license plate, if equipped.
(2) Remove screws holding back-up lamp to rear
closure panel. (3) Separate back-up lamp from closure panel.
(4) Remove sockets from back of lamp.
(5) Pull bulbs from sockets if bulb replacement is
required.
INSTALLATION
Reverse the preceding operation.
Fig. 3 Fog Lamp Bulb
Fig. 4 Tail Lamps
Fig. 5 License Plate Lamp
Fig. 6 Back-up Lamps
Ä LAMPS 8L - 15

EXTERIOR LAMPSÐAJ BODY INDEX
page page
Back-Up Lamp .......................... 17
Back-Up Lamp Bulb ...................... 17
Center High Mounted Stop Lamp (CHMSL) Bulb . 18
Center High-Mounted Stop Lamp Assembly (CHMSL) ............................. 18
Cornering Lamp or Bulb ................... 16
Front Side Marker Lamp ................... 16
Front Side Marker Lamp Bulb ............... 16
Headlamp Module and Bulb ................ 16 Headlamps
............................. 16
License Plate Lamp or Bulb ................ 17
Park and Turn Signal Lamp or Bulb .......... 16
Rear Side Marker Lamp ................... 17
Rear Side Marker Lamp Bulb ............... 17
Tail, Stop, Turn Signal Bulb or Lamp ......... 17
Trunk Lid Tail Lamp ...................... 17
Trunk Lid Tail Lamp Bulb .................. 17
HEADLAMPS
HEADLAMP MODULE AND BULB
REMOVAL (FIG. 1)
(1) Release hood latch and open hood.
(2) Remove bolts holding headlamp module to
grille opening panel. (3) Separate lamp module from grille opening
panel. (4) Disengage wire connectors from lamp sockets
behind lamp. (5) Separate lamp module from vehicle.
CAUTION: Do not touch the bulb glass with fingers
or other oily surfaces, reduced bulb life will result. (7) Remove bulb socket retaining ring and pull
bulb unit from lamp.
INSTALLATION
Reverse the preceding operation.
PARK AND TURN SIGNAL LAMP OR BULB
REMOVAL (FIG. 2)
(1) Remove two screws from the lamp and pull the
lamp from the bumper fascia. (2) Remove the socket and bulb assembly from the
lamp body.
INSTALLATION
Reverse the preceding operation.
FRONT SIDE MARKER LAMP BULB
REMOVAL
(1) Reach under and behind the front fender to ro-
tate the socket counterclockwise one half turn. (2) Pull the socket from the lamp body.
(3) Pull bulb from the socket.
INSTALLATION
Reverse the preceding operation.
FRONT SIDE MARKER LAMP
REMOVAL (FIG. 2)
(1) Remove the socket and bulb from the lamp
body. (2) From behind front fender, remove nuts holding
side marker lamp to fender. (3) Separate side marker lamp from vehicle.
INSTALLATION
Reverse the preceding operation.
CORNERING LAMP OR BULB
REMOVAL (FIG. 2)
(1) From behind front fender, remove nuts holding
cornering lamp to fender. (2) Remove socket from lamp.
(3) Separate cornering lamp from the vehicle.
INSTALLATION
Reverse the preceding operation.
Fig. 1 Aero Headlamp
8L - 16 LAMPS Ä

TAIL, STOP, TURN SIGNAL BULB OR LAMP
REMOVAL (FIG. 3)
(1) Open deck lid and remove the plastic wing nut
securing the rear trim cover in place. (2) Pivot the end of the trim panel out of the way
to gain access, and remove three plastic wing-nuts
securing the lamp to the vehicle. (3) Separate the tail lamp from the body far
enough to rotate the socket and bulb assemblies
counterclockwise one-half turn and pull the sockets
out of the lamp body. (4) Remove the bulb from socket.
INSTALLATION
Reverse the preceding operation.
TRUNK LID TAIL LAMP BULB
REMOVAL (FIG. 3)
(1) Remove deck lid liner as necessary. Through
access hole in the inner deck lid, rotate socket coun-
terclockwise one-half turn, and pull the socket and
bulb assembly from the lamp body. (2) Remove the bulb from the socket.
INSTALLATION
Reverse the preceding operation.
TRUNK LID TAIL LAMP
REMOVAL (FIG. 3)
(1) Remove bulb and sockets from trunk lid tail
lamp. (2) Remove six nuts and four screws securing the
tail lamp to the deck lid and remove the lamp assem-
bly from the vehicle.
INSTALLATION
Reverse the preceding operation.
BACK-UP LAMP BULB
REMOVAL (FIG. 3)
(1) From behind the rear bumper fascia, rotate the
bulb and socket assembly counterclockwise one-half
turn and pull the bulb and socket out of the lamp body.
(2) Remove the bulb from the socket.
INSTALLATION
Reverse the preceding operation.
BACK-UP LAMP
REMOVAL (FIG. 3)
(1) Remove the socket and bulb assembly from the
lamp body. (2) Remove two screws from the lamp and pull the
lamp from the rear bumper fascia.
INSTALLATION
Reverse the preceding operation.
REAR SIDE MARKER LAMP BULB
REMOVAL (FIG. 3)
(1) Open the deck lid and remove the fastener
(wing nut) from the lower rear trim panel. Rotate the
inner quarter trim panel forward to gain access to
the lamp assembly. Rotate counterclockwise one-half
turn, and pull the socket and bulb from the lamp
body. (2) Remove the bulb from the socket.
INSTALLATION
Reverse the preceding operation.
REAR SIDE MARKER LAMP
REMOVAL (FIG. 3)
(1) Remove the socket and bulb assembly.
(2) Remove two attaching nuts from the lamp be-
hind the quarter panel and remove the lamp from
the vehicle.
INSTALLATION
Reverse the preceding operation.
LICENSE PLATE LAMP OR BULB
REMOVAL (FIG. 3)
(1) Remove screws holding license plate lamp to
rear bumper fascia.
Fig. 2 Park, Turn Signal, Cornering and Side Marker LampÐTypical
Fig. 3 Tail, Stop, Turn Signal, Back-Up, LicensePlate and Side Marker Lamps
Ä LAMPS 8L - 17

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