
ELECTRICAL-BODY AND CHASSIS 12-5
Fig.
8—Turning Level Adjusting Screw to Calibrate Aimer
HEADLAMP PANEL TRAVEL ADJUSTMENT
Corvette (Fig. 9)
The headlamp panel travel is limited by two adjusting
screws which are located on the arms of the shaft
mounted stop.
Fig.
9—Headlamp Panel Travel Adjusting Screw
1.
Raise hood and as a safety precaution install a bolt
through the hole in the hood support - secure bolt
with a nut.
2.
Adjusting screw (A) limits headlamp panel travel in
open position - adjust this screw so that mounting
face of panel is within 2 degrees of vertical in the
fully open position.
NOTE: Each headlamp operates independently
of the other, therefore individual adjustment is
required for each panel.
3.
Adjusting screw (B) limits headlamp panel travel in
closed position - adjust this screw so that panel is
flush to upper body panel in the fully closed position.
4.
Lock both screws by tightening lock nut against stop.
5.
Remove safety bolt as installed in Step 1 and close
the hood.
SERVICE OPERATIONS
FRONT LIGHTING
HEADLAMP REPLACEMENT (Figs. 10 and 13)
1.
On Corvette and Camaro Rally Sport models, rotate
the headlamp panel to the open position.
2.
Remove headlamp bezel retaining screws and remove
bezel. On Chevrolet, Chevelle and Camaro models
lift bezel to disengage retaining tabs from slots in
filler panel.
3.
On Chevy n models remove three retaining ring at-
taching screws. On other models disengage spring
from the retaining ring and remove two attaching
screws.
4.
Remove retaining ring, disconnect sealed beam unit
at wiring connector and remove the unit.
5.
Attach connector to replacement unit and position
unit in place making sure the number molded into the
lens face is at the top.
NOTE: In the dual headlamp installation the
inboard unit (NO. 1) takes a double connector, the
outboard unit (No. 2) takes a triple connector
plug.
6. Position retaining ring into place and install the re-
taining ring attaching screws and spring (as
applicable).
7.
Check operation of unit and install the headlamp
bezel.
PARKING LAMP REPLACEMENT
Bulb
1.
Remove two lens retaining screws and disengage lens
from housing.
2.
Replace bulb, check operation of lamp, reinstall lens
and retaining screws.
Lamp Housing
Chevrolet, Chevelle and Chevy II (Figs. 10 and 11)
1.
Disconnect lamp wire assembly in-line connector
from wiring harness.
CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-6
\ \
CHEVROLET
CHEVELLE
CHEVY II
CAMARO
Fig.
10 - Headlamp Assemblies (Exc. Corvette)
1.
2.
Remove two bolts retaining housing assembly in Corvette (Fig. 12)
bumper and remove housing.
3.
Remove lens retaining screws, lens and bulb from
housing assembly and transfer to new housing unit.
4.
Connect lamp wiring assembly to harness assembly,
housing and check operation of lamp.
5. Position lamp assembly in place and.install retaining
bolts.
Camaro (Fig. 10)
1.
Raise hood.
2.
Disconnect wiring harness at rear of lamp socket.
3.
Remove attaching nut and disconnect ground wire at
sheet metal connection.
4.
Remove retaining nuts and housing from grille
opening.
5. Transfer lens and bulb to new unit.
6. To install, position lamp housing to grille opening
and install retaining nuts.
7. Connect ground wire to attaching point and install
retaining nut.
8. Connect wiring harness to lamp socket and check
operation of lamp.
Raise hood and disconnect harness connector from
lamp unit skirt-mounted
connector;
then
remove'lamp
unit connector from underside of skirt.
Working at the forward portion of the wheel well, re-
move the two lamp assembly retaining nuts and re-
move the lamp assembly and support from the
vehicle.
Route the lamp assembly lead wires through fender
cutout and position support over lead wires.
Position lamp unit studs through support and install
retaining nuts, making sure that the studs are
horizontal.
Connect harness to lamp unit skirt-mounted connec-
tor and close vehicle hood.
FENDER LAMP SERVICE (Fig. 11)
Chevrolet 16600 Models
1.
Disconnect parking lamp wiring from forward har-
ness connector.
CHEVROLET CHASSIS SERVICE MANUAL

EL«C7RICAL-BODY AND CHASSIS 12-7
PARKING
A
LAMP*
2.
Remove two screws retaining lens housing to the
lamp assembly and remove lens unit.
3.
Replace bulb, lens or housing as required and posi-
tion assembly to fender opening. Make sure wiring
Fig.
11 - Parking and Fender Lamps (Chevrolet)
Fig.
12 - Parking Lamp Installation (Corvette)
Fig.
13 - Headlamp Panel and Motor Details (Corvette)
CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-10
10.
To install, replace motor assembly, and reverse re-
moval procedure.
REAR LIGHTING SERVICE
TAIL, STOP AND DIRECTIONAL LAMPS
Bulb Replacement (Fig. 17)
1.
Disconnect lamp socket from rear of lamp unit and
remove bulb from socket.
NOTE:
Bulb removal on station wagon models
and Corvette requires, removal of the lens to
gain access to the bulb.
2.
Replace bulb and plug socket back into lamp housing.
Lamp Housing Replacement
Chevrolet, Chevelle Station Wagon,
Camaro and Chevy II (Fig. 17)
1.
Disconnect bulb socket from rear of lamp unit.
NOTE:
On station wagons remove lens to gain
access to lamp or screws securing lamp housing
to body.
2.
Remove nuts at rear of housing retaining lamp hous-
ing to vehicle body, remove housing from vehicle.
3.
Remove lens retaining screws or nuts, remove lens
and transfer to new housing unit.
4.
To install reverse removal procedure and check op-
eration of lamp unit.
HEADLAMP
WIRING ASSEMBLY
MOTOR
INSTALLATION
TO PARKING LAMP
TO RETR. HDLP. MOTOR
TO HEADLAMP
HEADLAMP
DOOR ASSEMBLY
Fig.
16- Headlamp Motor Installation (Comoro)
CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-11
CHEVELLE STATION WAGON
CHEVROLET STATION WAGON
CHEVELLE WAGON
CHEVROLET SEDAN
OPERATION
Bulb
Replacement
Lens
Replacement
Housing
Replacement
METHOD
Remove Lens (Outside)
Remove Socket (Inside Rear
Compartment)
Remove Retaining Screws (Outside)
Remove Housing and Disassemble
Remove From Outside (Retaining
Nuts in Rear Compartment
Remove From Inside
Remove From Outside (Retaining
Bolts Under Lens)
Lower Rear Bumper
BODY TYPE
Chevelle
X
X
X
Chevelle
35
X
X
X
Chevrolet
X
X
X
Chevrolet
35-45
X
i
•x
X
Camaro
F
X
-
X
X
Chevy II
X
X
X
X
Fig.
17 - Rear Lighting Composite (Exc. Corvette)
CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-12
NOTE:
Gasket must be carefully installed to
prevent body leaks.
Corvette (Fig. 18)
1.
Working at the underside of the body rear panel, dis-
connect the harness connector at the lamp assembly;
then remove the lamp assembly retaining nuts and
remove lamp assembly from recess in body panel.
NOTE:
Remove tail pipe extensions and rear
body valance panel to facilitate removal of the
outboard lamp assemblies.
2.
Position lamp assembly in body panel recess so that
studs are aligned with holes in panel.
3.
Position lamp assembly ground wire over stud; then
install remaining nuts and tighten securely.
4.
Install harness connector to lamp assembly and test
operation of light.
Bulb Replacement (Fig. 19)
1.
Remove lens retaining screws and disengage lens
from housing.
2.
Replace bulb, check operation of unit.
3.
Reinstall lens and retaining screws.
VIEW B
BACKING LAMPS
Fig.
18 - Rear Lighting (Corvette)
CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-14
BACKING LAMPS
lamp Housing Replacement (Fig. 19)
Bumper Installation
1.
Remove two screws retaining housing assembly in
the bumper and remove housing.
'2.
Disconnect lamp wire assembly connector from wir-
ing harness.
3.
Remove lens retaining screws, lens and bulb from
housing assembly and transfer to new housing unit.
4.
Connect lamp wiring assembly to harness assembly,
housing and check operation of lamp.
•5.
Position lamp assembly in place and install retaining
screws.
Corvette (Fig. 18)
1.
Remove license plate and bracket assembly.
2.
Remove tailpipe extensions and rear body valance
panel.
3.
Remove backing lamp attaching nuts.
4.
Disengage backing lamp assembly from body opening
and disconnect wiring harness at rear of lamp.
5. Transfer bulb, gasket and lens to replacement
housing.
6. Connect chassis wiring connector to housing and po-
sition lamp assembly to body opening.
7. Attach ground wire to housing and install retaining
nuts to housing.
8. Install body valance panel.
9. Position license plate assembly to body and install
retaining screws.
LICENSE PLATE LAMP SERVICE
Lamp Housing
1.
Remove the lamp assembly retaining screws and re-
move lamp assembly from mounting location (rear
bumper center face bar most models). On Corvette
models remove rear valance panel.
2.
Disconnect lamp wiring from chassis harness con-
nector (inside trunk on some models).
3.
Force grommet and Wiring down through body open-
ing (where applicable) and remove assembly from
vehicle.
4.
To install replacement unit, insert grommet and wir-
ing through body opening where applicable and con-
nect wiring to chassis harness.
5. Position assembly and install retaining screws. On
Corvette models make sure ground wire is properly
installed.
6. Check operation of lamp assembly.
iuib Replacement
1.
Remove lens retaining screws and lens.
NOTE:
On Camaro models loosen housing re-
taining screws.
2.
Remove and replace bulb.
3.
Position lens and install retaining screws.
AUTOMATIC TRANSMISSION
QUADRANT LAMP REPLACEMENT
Chevrolet (Fig. 20)
1.
Remove four screws retaining lower mast jacket
cover to upper cover.
2.
Remove two screws retaining upper cover to instru-
ment console.
3.
Remove two screws securing shield to upper cover
assembly.
4.
Remove and replace bulb.
5. Position shield to upper cover assembly and install
retaining screws.
6.' Position upper cover assembly to instrument console
and install retaining screws.
7. Position lower cover and install four retaining
screws.
Chevy II and Camaro (Fig. 21)
1.
Remove two screws attaching retainer and dial to
directional signal housing; remove retainer and dial
face from housing.
2.
Remove cap and bulb.
3.
Replace bulb and cap, then position dial and retainer
to housing.and install attaching screws.
Fig.
20 - Dial Quadrant Lamp — Chevrolet
1.
Upper Cover
2.
Shield
3. Lamp and Socket
4.
Dial Pointer
5.
Lower Cover
CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-15
Fig.
21 - Qlal Quadrant Assembly ~ Camaro
SEAT SEPARATOR CONSOLE LAMPS
COMPARTMENT LAMP REPLACEMENT (Fig.
22)
1.
Remove (pry up) switch assembly from console open-
ing in.the instrument compartment.
2.
Remove bulb from the socket.
3.
Replace bulb and install switch assembly in console
opening.
COURTESY LAMP REPLACEMENT (Fig. 22)
1.
Remove two screws and lens at rear of console.
2.
Remove bulb from retainer.
3.
Replace the bulb, position the lens and install attach-
ing screws.
QUADRANT LAMP REPLACEMENT (Fig. 22)
1.
Remove Dial Quadrant Trim plate retaining screws
and lift trim plate assembly from console opening.
2.
Disconnect lamp socket from the retainer and re-
move bulb from the socket.
3.
To install, insert bulb into the socket and snap the
socket assembly into the retainer.
Position the trim plate assembly into the console
opening and install the retaining screws.
4.
LIGHTING SWITCH REPLACEMENT (Fig. 24)
1.
Disconnect battery ground cable.
2.
Pull control knob out of headlamp ON position.
3.
Reach under instrument panel and depress the switch
shaft retainer (Fig. 25) and remove knob and shaft
assembly.
4.
Remove ferrule nut using Tool J-21932 and remove
switch assembly from instrument panel.
NOTE:
Some Chevelle models require use of
ToolJ-4880.
5. Disconnect the multi-plug connector from the lighting
switch. A screw driver may be inserted in the side
of the switch to pry the connector from the switch.
6. Connect the multi-plug connector to the replacement
switch (Fig. 23). Connect battery cable to battery
terminal and check operation of the light switch'in all
positions.
NOTE:
Ground switch- to check dome lamp
operation.
7. Position switch and bezel to panel mounting hole and
install ferrule jmt.
8. Insert switch control knob and shaft assembly into
switch until retainer engages shaft.
WIPER SWITCH REPLACEMENT (Fig. 26)
1.
Disconnect battery ground cable.
2.
Remove the connectors from the rear of the switch.
NOTE:
On Air Conditioned models it is nec-
essary to remove left A/C outlet duct for acces-
sibility to rear of switch.
3.
Loosen set screw and pull knob from switch shaft.
4.
Remove retaining nuts using special Tool J-21932
and withdraw wiper switch from behind console.
NOTE:
Some Chevelle models require special
ToolJ-4880.
5. To install, reverse removal procedure and check
operation of wipers.
STOPLIGHT SWITCH REPLACEMENT (Fig. 27)
1.
Disengage retaining fingers, disconnect wiring har-
ness connector from switch and unscrew switch from
mounting clip.
2.
Depress brake pedal and push new switch into clip
until shoulder bottoms out against clip.
3.
Check switch position for proper operation. Elec-
trical contact should be made when the brake pedal is
depressed 3/8" to 5/8" from fully released position.
DIMMER SWITCH REPLACEMENT (Fig. 28)
1.
Fold back upper left corner of front floor mat, disen-
gage connector lock fingers, and disconnect multi-
plug connector from dimmer switch.
2.
Remove two screws retaining dimmer switch to toe
pan.
3.
Connect multi-plug connector to new switch and
check operation. Install new switch to toe pan with
two screws. Replace floor mat.
BACKING LAMP SWITCH REPLACEMENT
Located on Mast Jacket (Fig. 29)
1.
Disconnect wiring connector at switch terminals.
2.
Remove switch attaching screws and switch from
mast jacket.
3.
Position new switch to mast jacket, install the re-
taining screws and connect wire connector to switch.
NOTE:
Position gear shift in neutral before
assembling switch to mast jacket.
4.
Check operation of switch.
Located on Transmission (Fig. 30)
1.
Raise and support vehicle.
CHEVROLET CHASSIS SERVICE MANUAL