1967 CHEVROLET CAMARO Wiring

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

CRUISE MASTER SYSTEM CHECKS

Will not engage

Does not cruise at engage-

ment speed

System hunts or pulses

System does not disengage -

with brake pedal

System applies full throtUe

when engaged

Cannot adjust speed down-

ward with Engage Button

Does not engage or engages

lower than limits referred

to in "Driver Operation"
Cause

Brake Switch Circuit Open

Fuse blown

Defective Engage Switch

Vacuum leak in Servo and/or Brake

Switch and connecting lines.

Open in wiring harness

Defective Regulator

Orifice Tube misadjusted

Bead Chain loose.

Kinked or deteriorated hoses

Dirty Air Filter

Defective and/or improperly posi-

tioned Drive Cables and/or Casing

Assemblies

Defective Regulator

Brake and/or Vacuum Switch mis-

adjusted or defective

Hoses interchanged at Servo

Defective Regulator

Defective Engagement Switch or

Wiring

Internally Misadjusted Regulator
Correction

Check connections - adjust or replace switch. Refer to

Electrical Check Out.

Replace fuse - if it blows again, check for:

1.
Engage Switch stuck in the center of travel - Refer

to Electrical Check Out.

2.
Incorrect wiring - Refer to Electrical Check Out.

3.
Short to ground - Refer to Electrical Check Out.

Make necessary corrections.

Replace as needed - Refer to Electrical Check Out.

Vacuum test and repair or replace as needed. Refer to

Servo and Vacuum System Check Out.

Repair or replace as needed.

Replace Regulator.

Adjust as required.

Tighten Bead Chain.

Repair or replace.

Service as required.

Repair or replace as needed.

Replace Regulator.

Adjust or replace as required. Refer to Servo

and Vacuum System Check Out and Electrical Check

Out.

Correct as needed.

Replace Regulator.

Replace as needed. Refer to Electrical Check Out.

Replace Regulator

SPECIFICATIONS
16

COIL

Ignition Coil

Application

Primary Resistance-Ohms

Secondary Resistance-Ohms

Ignition Resistor:

Type

Ohms
L-4 & L-6

1.45-1.63

5600-6900

1.8
V-8 (Non-Transistor)

1.24-1.46

6500-9500

Fixed (In Wiring Harness)

1.8
V-8 (Transistor)

.38-.51

8200-12,400

.43 & .68

CHEVROLET CHASSIS SERVICE MANUAL

SPECIFICATIONS 25

BODY AND CHASSIS ELECTRICAL

SECTION
12

LAMP USAGE
CANDLE

POWER
BULB

NUMBER

Headlamp Unit

Chevrolet, Chevelle & Corvette

Outer - High Beam

Outer - Low Beam

Inner -• High Beam only

Chevy H

High Beam . .

Low Beam

Parking Lamp and Directional Signal

All Exc. Camaro

Camaro

Tail, Stop and Directional Signal (Exc. Bel Air)

Backing Lamp ••...,

Instrument Illumination Lamps

Chevrolet & Camaro ,

Chevelle and Chevy n

Corvette

Temperature Indicator

Chevrolet & Camaro

Chevelle and Chevy II .............

Oil Pressure Indicator

Chevrolet & Camaro .............

Chevelle and Chevy II

Generator Indicator

Chevrolet & Camaro .

Chevelle and Chevy n ,

Hi-Beam Indicator

Chevrolet & Camaro <

Chevelle and Chevy II

Corvette , . • . ,

Directional Indicator

Chevrolet & Camaro

Chevelle & Chevy II . .

Corvette . .

Cigarette Lighter Lamp

Corvette .

Ignition Lock Lamp

Chevrolet . . .

Corvette . . .

Heater or A/C Control Panel

Chevrolet, Chevelle, Chevy n & Camaro . . .

Corvette . . .

Glove Box Lamps

Chevrolet, Chevelle, Chevy n & Camaro . . .

Corvette . . . . .

Dome and Courtesy Lamps

Cartridge Type (AU)

Bayonet Type (Exc. Corvette) . . .

Corvette ,

Convertible . .
37 1/2 Watts

55 Watts

37 1/2 Watts

55 Watts

45 Watts

4-32

4-32

4-32

Special Fiber

1

2

3

2

3

12

6

6

6
Optic
4002

4002

4001

6012

1157

1034-A

1157

1156

194

1895
.

1816

194

1895

194

1895

194

1895

194

1895

1445

194

1895

1816

1445

Wiring

1445

1895

1893

1895

1893

211

89,
212

90

631

CHEVROLET CHASSIS SERVICE MANUAL