1967 CHEVROLET CAMARO fuse

ELECTRICAL-BODY AND CHASSIS 12-40

Fig.
54 - Seat Separator Instrument Console

consists of a single red light which will indicate an over-

heated engine condition.

Engine Sender Unit Replacement

1.
Drain engine cooling system to a level below unit.
2.
Remove sender unit (located in cylinder head near

an exhaust port on L-6 engines and in the inlet mani-

fold near water pump housing on V-8 engines).

3.
Replace unit, refill cooling system and check opera-

tion of unit.

DIRECTIONAL SIGNAL

Directional signal assemblies provide as standard pro-

duction equipment a lane changing feature and hazard

warning system on all model applications. Two different

design switches are used as shown in Figure 55. Major

difference between the two units is that one type has can-

celling and detent springs which are serviceable, other-

wise both units are not repairable and must be replaced

as an assembly in service.

Due to the integral design relationship of the signal

switch and the energy absorbing steering column, refer-

ence should be made to Steering, Section 9 of this manual
whenever any service operations are performed on the

steering column. The directional signal switch replace-

ment procedures covered in this section are intended to

supplement the detail service operations outlined in Sec-

tion 9.

Special note should be taken of the fact that different

signal flasher units are used in Chevrolet models depend-

ent on the number of lamps to be operated. The hazard

warning unit, even though an integral component of the

directional switch assembly, requires the installation of

an additional flasher unit in the fuse panel capable of op-

CHEVROtET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY
AND
CHASSIS
12-62

BULKHEAD-

CONNECTOR
HEATER

RESISTOR

PANEL ASM.

12 BRN
20
Y

12 BRN

»-67 MOD ONLY

*45 MOD ONLY
14 PPL

DIRSIG.

FLASHER

20 BRN
'20 LBL

20
P

16 BRN

>20
LG

• 20 PPL

•
14 LBL

• 20
T

.20 OR

-20 DG

20
Y

20
LG

—
20DBL/W.

20
DG

—16 BRN

20 DG

10
OR

TAPE BACK

'10 OR

10 OR/B

18
P

20 BRN

Fig.
105 -
Fuse Panel
—
Chevrolet

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-67

NEU. SAF. SW.

COLUMN SHIFT

RPOM-35

BHD.
CONN.
__ 20 P

1 20 LG<

BACK UP LP. SW.

COLUMN SHIFT

.12 BRN

8
12.P —

is fi-

le LBL.

.18 DBL

. 12 PPL —

.
20
DG —

>16T —

-24 BRN/W-

• 16 BRN —

•20 DBL —

. 20
DBL —

.12R

•20 LBL

, 20 LBL

.20 B

20 LG

•20 PPL

-16 LG
• -12 PPL/W

•
-12 PPL

NEU. SAF. SW.

FLOOR SHIFT

RPOM35

.20 LG—-f
—

20 DG—^

.
18 DG —

'18 LG~

BACKUP LP. SW>

FLOOR SHIFT /—18 OR—

/-20Y —

. 12 PPL/W

12 R—

12 P_

20 DG—

14 BRN—

,12 BRN—

.24 BRN/W

,14OR—.

20 GY —

14 W

.12 R
.14OR —

14OR —

20T-_

20 DBL—

20 P _

20 LG-—.

,18 BRN—.

L.20P

14 LBL
20 DBL—

•14 PPL—

12 BRN—

>
18 LBL—

18 B ——

.18 DBL—

20 LBL—

20 LG.

»20Y-

•
20DG<

Fig.
110 - Fuse Panel — Chevelle

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY
AND
CHASSIS
12-71

HTRBIiO

20LG

20OR

14OR

14W-

FUSE
PNL
ASM

20LG
—

20P
—

12PPL —

12PPL
—

NEUSAF

(RPO M-35)

11700-800

18DBL

12PPL
—

16BRN
—

12BRN—•

24BRN/W—
NEUSAFSW

(RPO
M-35)

ALLEXC.

11700-800
§§

7T

RPO
M-35

20LBL

20DBL

20PPL

14LBL
20PPL

14LBL

20LG

12R

20DG—

C,

Fig.
114 -
Fuse Panel
—
Chevy
II

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-75

12 BRN

12 BRN

HEATER RESISTOR

14 LBL—

14 OR

14 Y

—12PPL—*\

/
^.LG
R. H. COURT LP.

-12 BRN —

cmcurr
BREAKER!
.R.H. DOOR

JAMB SW.

20OR-

18 LBL'

20 Y

14PPL%

•-20
W

X
/-20DG'

20 P
—

18 CfY/DBL/B

— 20 B

•^-14
OR
——

-—14 LBL —

L,
H.
DOOR JAMB SW.-
20 P

Fig.
118 - Fuse Panel — Corvette

CHEVROLET CHASSIS SERVICE MANUAl

ELECTRICAL-BODY AND CHASSIS 12-79

14LBL

20DBL

20DBL

20PPL

20LBL

20LBL

20B —

12R
—

Fig.
122 - Fuse Panel - Camaro

CHEVROLET at
SERVICE MANUAL

ACCESSORIES
15-8

BROWN
BRAKE

SWITCH

+12V *

BLACK
CONNECTOR

AT FUSE BLOCK

CRUISE POSITION

BUTTON RELEASED

ENGAGE POSITION

BUTTON PARTIALLY DEPRESSED^ N. ENOAOi SWITCH

TRIM POSITION N. N. I

BUHON FULLY DEPRESSED. \ ^

BROWN

BLUE

ENGAGE SWITCH

CONFIGURATION

BLACK

BLUE

REGULATOR
- SOLENOID COIL

(5 a RESISTANCE)
9 BLACK

BLUE

REGULATOR

Fig.
10 - Wiring Diagram

Replacement

1.
Insert the switch into the turn signal knob, push the

retaining ring firmly against the switch, and push the

operating button onto the switch plunger. " .
SERVO

Service
—
H the Servo unit is found to be defective, re-

placement is required. Note the condition of the hoses

and replace any which are cracked or deteriorated.

CHEVROLET CHASSIS SERVICE MANUAL

ACCESSORIES 15-9

Adjustment- Adjust the bead chain so that it is as tight

as possible without holding the throttle open when the

carburetor is set at its lowest idle throttle position.

When connecting the bead chain (engine stopped) manually

set the fast idle cam at its lowest step and connect the

chain so that it does not hold the idle screw off the cam.

If the chain needs to be cut, cut it three beads beyond the

bead which pulls the linkage.

REGULATOR

Service - A defective regulator, that is one which is not

simply out of adjustment, must be replaced. During re-

placement, check the hoses which connect to the regulator

and replace any which are cracked or deteriorated.

Air Filter

The air filter located in the solenoid cover should be

cleaned and re-oiled at engine oil change intervals.

1.
Snap the solenoid cover off.

2.
Remove the filter and wash it in kerosene or mineral

spirits. Squeeze it dry and wet with SAE 10 engine

oil.
Squeeze out excess oil and reinstall into the

cover.

3.
Attach the cover with neoprene seal to the solenoid

housing. Be certain that the cover fits tightly to the

housing.

One regulator adjustment is possible: Engagement-

Cruising Speed Zeroing (to remove any difference be-

tween engagement and cruising speed).

NOTE:
No regulator adjustment should be

made, however, until the following items have

been checked or serviced:

1.
Bead chain properly adjusted.

2.
All hoses in good condition, properly attached, not

leaking, not pinched or kinked.

3.
Regulator air filter clean and properly oiled.

4.
Electric and vacuum release switches properly

adjusted.

Engagement—Cruising Speed Zeroing

If the cruising speed is lower than the engagement

speed, loosen the orifice tube locknut and turn the tube

outward; if higher, turn the tube inward. Each 1/8 turn

will alter the engagement-cruising speed difference one

mph. Tighten the locknut after adjustment and check the

system operation at 50 mph.

ELECTRICAL SYSTEM CHECK OUT

1.
Check fuse and connector.

2.
Check electric brake switch as follows: Unplug con-

nector at brake switch. Connect ohmmeter at points

A and B on brake switch. The ohmmeter must indi-

cate infinity when the brake pedal is depressed and

continuity when pedal is released. The cruise re-

lease brake switch (electric) is adjusted as is the

standard stop light brake switch. Replace electric

brake switch if needed.

3.
Check engagement switch and connecting wiring as
follows: Unplug push button control connector

(brown, blue, black) at electrical wiring harness con-

nector and perform the following tests. (See Fig-

ure 10)

Test #1
—
Connect ohmmeter between terminal #1 (brown

wire) and terminal #2 (blue wire). Continuity shall be

maintained until switch is depressed all the way in.

Test #2
—
Connect ohmmeter between terminal #1 (brown

wire) and terminal #3 (black). No continuity shall be

shown; however, when the button is depressed halfway,

continuity shall be indicated. When the button is pressed

all the way down, no continuity shall be shown.

Test #3 — Connect ohmmeter between terminal #2 (blue

wire) and terminal #3 (black). Button released, no con-

tinuity; however, when the button is depressed partially

and fully, continuity shall be shown.

4.
Check regulator solenoid coil, low-speed switch, and

wiring harness as follows:

a. Disconnect engagement switch wire harness con-

nector from the main wire harness connector

(brown, blue, and black wires). Connect ohm-

meter
'
between point C (blue wire in main wire

harness) and ground. (Make sure the regulator is

well grounded to chassis.) The ohmmeter should

read 45 ohms ± 2 ohms. If a resistance of

greater value is shown, then disconnect the con-

nector from the regulator and measure the re-

sistance of the blue wire from point C to D. It

should measure 40 ohms. Check the resistance

from point E (vertical bar of terminal forming T)

to ground. It should measure 5 ohms ± 1/4 ohm.

Replace either the wiring harness or solenoid as

needed if greater values are indicated. The black

harness wiring from point F to G should also be

checked for continuity.

ENGAGEMENT SWITCH TEST

BUTTON POSITION

Cruise (released)

Engage (partially depressed)

Trim (fully depressed)
TERMINALS

1 TO 2

closed

Closed

open
1 TO 3

open

closed

open
2 TO 3

open

closed

closed

SERVO AND VACUUM SYSTEM CHECK OUT

To determine the condition of the diaphragm, remove

hoses from power unit and apply 14 inches of vacuum to

either vacuum tube opening (seal the other opening) and

hold in for one minute. The vacuum shall not leak down

more than 5 inches of vacuum in one minute. If leakage

is detected, replace servo. To utilize engine as a vac-

uum source, proceed as follows:

1.
DISCONNECT SERVO $EAD CHAIN and hoses from

servo and connect engine vacuum directly to vacuum

servo fitting (fitting in middle of servo). Seal the

servo unit opening.

2.
Note position of servo diaphragm.

3.
Start engine - the diaphragm should pull in.

4.
Clamp off engine vacuum supply line and check for

leakage. '

The cruise release brake switch (vacuum) and connecting

hoses can likewise be checked using a vacuum pump.

CHEVROLET CHASSIS SERVICE MANUAL