1967 CHEVROLET CAMARO wiring

ELECTRICAL-BODY
AND
CHASSIS
12-26

•
Low oil
pressure

• High engine temperature

• Defective wiring
or
switch

connector from sender

in block above starter
on

and
at
left front
of
distributor
on V-8
Sending Unit Replacement

1.
Disconnect wiring harness

unit terminal (located

L-6 engines

engines).

2.
Remove sender unit using Tool J-21757
or 12
point

socket, replace with
new
unit
and
check operation.

GENERATOR INDICATOR

1.
Ignition
on,
Engine
not
Running
and
Telltale Light

Off.

• Indicator bulb burned out, replace bulb.

• Open circuit
or
loose connection
in the
telltale

light circuit.

2.
telltale Light Stays
on
after Engine
is
Started.
If indicator light does
not go out at
engine idle

speed, refer
to
Charging Systems under Engine

Electrical, Section
6Y.

TEMPERATURE (COOLING SYSTEM) INDICATOR

The temperature indicator circuit consists
of two re-

motely located units, indicator gauge
and
engine sender

unit.
The
indicator gauge, located
in the
instrument

panel, consists
of a
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 the
inlet manifold

near water pump housing
on V-8
engines and
in the

cylinder head near
an
exhaust port
oh L-6
engines)

and replace with new unit.

3.
Refill cooling system
and
check operation
of
unit.

CHEVELLE INSTRUMENTS AND GAUGES

INDEX

Page

General Description
* *
i2-26

Service Operations
12-26

Instrument Panel
12-26

Instrument Cluster.
12-26

Fuel Gauge and/or Ammeter
12-27

Clock,
i 12-27

Speedometer
12-27
Page

Speedometer Cable
.
. 12-27

Temperature Gauge
12-29

Oil Pressure Gauge
12-29

Indicator Lights.
. 12-29

Oil Pressure Indicator
12-29

Generator Indicator
. . 12-29

• Temperature Indicator
12-29

GENERAL DESCRIPTION

The Chevelle instrument cluster assembly consists
of:

a speedometer;
a
fuel gauge;
a
generator,
an
engine
tem-

perature and an
oil
pressure indicator lamp, and includes

a clock
on
deluxe models.
On
super sport models,
am-

meter, coolant temperature
and oil
pressure gauges
re-

place
the
appropriate indicator lights. Except
for the

speedometer,
all of the
indicator lamps, instruments
and

gauges
of
these clusters may
be
serviced without remov-

ing
the
instrument cluster assembly from
the
vehicle.

In addition
to the
instrument indicator lamps,
a
brake

warning lamp
is
included
in the
cluster
as
standard

equipment.
The
indicator
is
connected
to the
parking
brake
and
brake pressure differential switches
and

serves
a
dual function.
It
lights when the parking brake

is applied
and
also when
the
brake pedal
is
applied,
if a

malfunction should occur
in the
brake system
due to a

loss
of
hydraulic pressure. Servicing
of the
hydraulic

pressure differential switch
is
covered
in
Section
5 of

this manual.

Regular maintenance
is not
required on the instrument

cjLuster
or its
components other than maintaining dean

and tight electrical connections, replacing defective parts

and keeping
the
speedometer cable properly lubricated.

SERVICE OPERATIONS

INSTRUMENT PANEL ASSEMBLY

INSTRUMENT CLUSTER (Figs.
41
thru
44)

Removal

1.
Disconnect battery ground cable.

2.
Remove steering coupling bolt and disconnect steer-

ing shaft from coupling.

3.
Loosen mast jacket lower clamp.

4.
Remove
air
conditioning center distributor duct
(if

so equipped).

5. Remove radio rear support bracket screw.

6. Remove mast jacket upper support clamp and retain-

ing bolts from lower support (refer
to
Section
9,

Steering).
CAUTION: Cover mast jacket
and
parl

brake handle with
a
suitable material
to
prevc

scratching.

7.
Disconnect speedometer cable
at
rear
of
cluster

housing
and
speed warning control knob
at
panel
(if

so equipped).

8. Remove instrument panel retaining screws (nine

upper and five lower).
.

9. Working under the console remove four lower retain-

ing screws from instrument cluster housing.

10.
Pull instrument panel assembly from console and
lay

forward on mast jacket.

11.
Disconnect wiring harness, cluster lamps and wiring

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-27

Fig.
41 - Instrument Panel Installation — Chevelle

terminals from rear of cluster assembly (figs. 43

and 44).

12.
Remove four screws retaining upper section of dus-

ter housing to panel and remove cluster from the in-

strument panel and to a suitable working area for

necessary service (fig. 42).

Installation

1.
Position cluster assembly to rear of panel and install

four upper retaining screws.

2.
Connect cluster lamps, wiring connectors and wiring

harness assembly to the cluster assembly.

3.
Position instrument panel assembly into console

(hold panel at center and install center screws) and

install upper and lower retaining screws.

NOTE:
At this point temporarily reconnect

battery and check operation of cluster.

4.
Working under the console, install four lower screws

retaining lower section of cluster cover to rear of

panel.

5. Install radio brace screw at rear of radio.

6. Connect speedometer cable to speedometer and speed

warning device control knob.

7. Install A/C distributor duct and connect A/C hoses to

duct (if so equipped).

8. Install mast jacket upper support clamp.

9. Position steering shaft in the steering coupling and

install retaining bolt.

10.
Tighten mast jacket lower clamp (refer to Steering,

Section 9 for spring tension adjustment).

11.
Connect battery ground cable.

FUEL GAUGE AND/OR AMMETER

REPLACEMENT

1.
Disconnect battery ground cable.

2.
On air conditioned models, disconnect hose and re-

move air outlet from panel.

3.
Disconnect wiring connectors and cluster lamps from

rear of gauge assembly.

4.
Remove mounting plate retaining screws (3) and re-
move fuel gauge from rear of cluster housing.

5. Remove terminal nuts (3) securing gauge to template

and replace gauge.

6. To install, reverse the removal procedure.

CLOCK REPLACEMENT

1.
Disconnect battery ground cable.

2.
Remove clock set shaft knob retaining nut and knob.

3.
Disconnect wiring connector at clock terminal and

cluster lamp from clock housing. On A/C models,

disconnect hose from air distributor duct.

4.
Remove two screws retaining clock housing to

cluster cover and remove clock.

5. To install, reverse removal procedure.

SPEEDOMETER REPLACEMENT

1.
Disconnect battery ground cable.

2.
Remove instrument cluster assembly as previously

outlined in this section.

3.
Remove screws (8) attaching cover to rear of cluster

housing.

4.
Remove two screws attaching speedometer assembly

to cluster cover and carefully remove speedometer

head.

NOTE:
Servicing of the speedometer assembly

should be performed by an authorized
AC
speed-

ometer service station.

5. To install, reverse removal procedure.

SPEEDOMETER CABLE

Replacement or Lubrication

1.
Disconnect the speedometer cable from the speedom-

eter head. Remove the old cable by pulling it out

from speedometer
, end
of conduit.

NOTE:
If old cable is broken it may be neces-

sary to remove lower piece from transmission

end of conduit.

2.
Lubricate the lower 3/4 of cable with speedometer

cable lubricant and push the cable into the conduit.

Connect the upper end to the speedometer head and

road test vehicle for proper speedometer operation.

Fig.
42 - Instrument Cluster Installation

CHEVROLET CHASSIS SEtVKE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-29

Fig.
43b - Speed Warning Device

TEMPERATURE AND/OR OIL PRESSURE

GAUGE

1.
Disconnect battery ground cable.

2.
Remove ash tray and ash tray retainer.

3.
Disconnect A/C hose from the distributor duct.

4.
Disconnect wiring connectors and lamp bulbs from

rear of gauge.

5. Disconnect oil pressure pipe fitting from rear of oil

pressure gauge.

6. Remove (3) screws retaining gauge assembly to

cluster cover and disengage unit from cover.

7. Remove (4) retaining nuts and remove gauge from

template.

8. To install, reverse removal procedure.

INDICATOR LIGHT REPLACEMENT

To replace any indicator or cluster bulb, unsnap the

proper socket from rear of instrument cluster, remove

and replace bulb, and reinsert unit into rear of cluster

housing.
OIL PRESSURE INDICATOR

If the light does not come on when the ignition switch is

turned on, or if the light comes on and remains on after

the engine is started, one or more the following condi-

tions is indicated:

• Low oil pressure

• Defective wiring or switch

• High engine temperature

Switch Replacement

1.
Disconnect wiring harness connector from sender

unit terminal (located in block above starter on L-6

engines and at left front of distributor on V-8

engines).

2.
Remove sender unit using Tool J-21757, replace with

new unit, and check operation.

GENERATOR INDICATOR

Ignition on, Engine not Running and

Telltale Light Off

1.
Indicator bulb burned out, replace bulb.

2.
Open circuit or loose connection in the telltale light

circuit.

Telltale Light Stays on after Engine is Started

If indicator light does not go out at engine idle speed,

refer to' Charging Systems under Engine Electrical,

Section 6Y.

TEMPERATURE
(COOLING
SYSTEM)
INDICATOR

The temperature indicator circuit, consists of two re-

motely located units, indicator gauge and engine sender

unit. The indicator gauge on all models uses a single

red light to indicate an overheated engine condition.

Engine Sender Unit Replacement

1.
Drain engine cooling system to a level below unit.

2.
Remove sender unit (located in the inlet manifold

near water pump housing on V-8 engines and in the

cylinder head near an exhaust port on L-6 engines)

and replace with new unit.

3.
Refill cooling system and check operation of unit.

CHEVROLET CHASSIS SERVICE MANUAL

VIEW
A

VIEW
B

(13700-800)

Fig. 44
-
Instrument Panel Wiring Harness

1.
R.H. Door Jamb Switch

2.
To Instrument Panel

Compartment Light

3. Heater Control Lamp

4.
Ignition Switch Connector

5. Cigarette Lighter

Connector
6. W/S Wiper Switch

Connector

7. Light Switch Connector

8.
L.H.
Door Jamb Switch

9.
To
Body Harness Connector

10.
Parking Brake Alarm

Switch Connector
11.
Directional Signal Switch

Connector

12.
Backing Lamp Switch

Connector

13.
Stop-Lamp Switch

Connector

14.
Flasher Unit
15.
Heater Control Switch

Connector

16.
Heater Resistor Connector

17.
Console Courtesy Lamp

Connector

18.
Neutral Safety Switch

Connector

ELECTRICAL-BODY
AND
CHASSIS
12-31

CHEVY II INSTRUMENTS AND GAUGES

INDEX

Page
Page

General Description -.....
12-31

Service Operations.
12-31

Instrument Panel
. 12-31

Instrument Cluster
12-31

Fuel Gauge
12-32

12-32
Clock,
Speedometer
12-34

Speedometer Catte
12-34

Indicator Lights
12-34

Oil Pressure Indicator
12-34

Generator Indicator
12-34

Temperature Indicator
12-34

GENERAL DESCRIPTION

The Chevy
n
instrument cluster assembly consists
of:

a speedometer;
a
fuel gauge;
a
generator, temperature

and
oil
pressure indicator lamps, and includes
a
clock
on

deluxe models. Except
for the
speedometer,
all of the

cluster lamps, instruments and gauges
of
the cluster
may

be serviced without removing
the
instrument cluster
as-

sembly from
the
console.

In addition
to the
instrument indicator lamps,
a
brake

warning lamp
is
included
in the
cluster
as
standard

equipment.
The
indicator
is
connected
to
thfc parking

brake and brake pressure differential switches andserves
a dual function.
It
lights when
the
parking brake
is ap-

plied
and
also when
the
brake pedal
is
applied,
if a mal-

function should occur
in the
brake system
due to a
loss
of

hydraulic pressure. Servicing
of the
hydraulic pressure

differential switch
is
covered
in
Section
5 of
this manaul.

Regular maintenance
is not
required on
the
instrument

cluster
or its
components other than r^Mfitftl^i^g clean

and tight electrical connections, replacing defective parts

and keeping
the
speedometer cable properly lubricated.

SERVICE OPERATIONS

INSTRUMENT PANEL

INSTRUMENT CLUSTER

Removal
and
Installation {Figs.
45
thru
48)

1.
Disconnect battery ground cable.

2.
Remove mast jacket upper support clamp (refer
to

Steering, Section
9, for
complete procedure
on low-

ering jacket) and lower steering column.

NOTE:
Apply protective material
to the
mast

jacket
to
prevent damage
to the
painted surfaces.
3.
Disconnect retaining collar securing speedometer

cable
to
speedometer head.

4.
Remove screws retaining cluster
to
console.

5. Pull cluster forward
of
console opening and discon-

nect
all
wiring
and
lamp connections. Remove

cluster from vehicle.

CAUTION:
Do not
pull cluster outward further

than slack
in
wiring harness will allow, other-

Fig.
45-
Instrument Cluster Installation
—
Chevy
II

Fig.
46 -
Speed Warning Device

CHEVtOtET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-32

Fig.
47-
Instrument Clyster Wiring

1.
Instrument Cluster Bulb

2.
R.H. Directional Indicator

3. Bright Indicator

4.
Gen Indicator
5. Temp Indicator

6. Oil Indicator

7. L.H. Directional Indicator
8. Fuel Gauge Connector

9. Instrument Panel Wiring

Harness
10.
Clock Assembly (11700-800)

11.
Cover (exc. 11700-800)

12.
Plate (exc. 11700-800)

13.
Brake Alarm
indicator

wise wiring and lamp connections may be

damaged."~ ' ""

6. To install, position cluster to console opening and

connect all wiring and lamp connections.

7. Position cluster in console and attach speedometer

cable to the speedometer head.

8. Install eight screws retaining cluster to console.

9. Install mast jack upper clamp assembly.

10.
Connect battery ground cable and check operation of

instruments and gauges.

FUEL GAUGE REPLACEMENT

1.
Disconnect battery ground cable.

2.
Disconnect cluster lamp and wiring harness connec-
5.
tions at rear of gauge.

Remove two screws retaining gauge to rear of

cluster housing and remove gauge from housing.

Remove terminal nuts attaching gauge unit to cover

plate and remove unit, from plate.

To install, reverse the removal procedure*

CLOCK REPLACEMENT

1.
Disconnect battery ground cable.

2.
Remove clock set shaft, knob retaining screw and

knob from set shaft.

3.
Disconnect wiring and lamp connections "from rear

o£ clock.

4.
Remove two screws attaching clock to rear of hous-

ing and remove clock from cluster housing.

CHevnou-r ousst

Fig.
48 - Instrument Panel Wiring Hamess

1.
To Instrument Panel

Compartment light

2.
Heater Control Bulb

3. To Heater Switch

4.
To Directional Signal Flasher
5.

6.

7.

a
To Heater Resistor

To Blower Motor

Connector

To Cigarette Lighter

To Ignition Switch
9.

10.

11.

12.
To Wiper Switch

To Light Switch

To Fisher Body Connector

To Directional Signal

Connector
13.
To Stop Lamp Switch

14.
To Backing Lamp

15.
Fuse Panel

16.
To Dimmer Switch

ELECTRICAL-BODY AND CHASSIS 12-34

5. To replace, reverse the removal procedure.

SPEEDOMETER REPLACEMENT

1.
Remove instrument cluster as previously described

in this section.

2.
Remove clock set shaft knob.

3.
Remove eight screws securing cluster housing to

bezel trim panel. Separate parts carefully observing

stack up of parts.

4.
Remove two screws securing speedometer head to

rear of cluster housing.

NOTE:
Servicing of the speedometer head

should be performed by an authorized AC Speed-

ometer Service Station.

5. To install, reverse the removal procedure..

SPEEDOMETER CABLE

Replacement or Lubricatibn

1.
Disconnect the speedometer cable from the speed-

ometer head. Remove the old cable by pulling it out

from speedometer end of conduit.

NOTE:
If old cable is broken it may be neces-

sary to remove lower piece from transmission

end of conduit.

2.
Lubricate the lower 3/4 of cable with speedometer

cable lubricant and push the cable into the conduit.

Connect the upper end to the speedometer head and

road test vehicle for proper speedometer operation.

INDICATOR LIGHT REPLACEMENT

To replace any indicator or cluster bulb, unsnap the

proper socket from rear of instrument cluster, remove

and replace bulb, and reinsert unit into rear of cluster

housing.

OIL PRESSURE INDICATOR

If the light does not come on when the ignition switch
is turned on, or if the light comes on and remains on

after the engine is started, one or more of the following

conditions is indicated:

• Low oil pressure

• High engine temperature

• Defective wiring or switch

Switch Replacement

1.
Disconnect wiring harness connector from sender

unit terminal (located in block above starter on

L-6 engines and at left front of distributor on V-8

engines).

2.
Remove sender unit, replace with new unit, and

; check operation.

GENERATOR INDICATOR

1.
Ignition on, engine not running and telltale light off.

a. Indicator bulb burned out, replace bulb.

b.
Open circuit or loose connection in the telltale

light circuit.

2.
Telltale light stays on after engine is started.

a. If indicator light does not go out at engine idle

speed, refer to Charging Systems under Engine

Electrical, Section 6Y.

TEMPERATURE (COOLING SYSTEM) INDICATOR

The temperature indicator circuit consists of two re-

motely located units, indicator gauge and engine sender

unit. The indicator gauge on all models uses a single

red light to indicate an overheated engine condition.

Engine Sender Unit Replacement

1.
Drain engine cooling system to a level below unit.

2.
Remove sender unit (located in the inlet manifold

near water pump housing on V-8 engines and in the

cylinder head near an exhaust port on L-6 engines)

and replace with new unit.

3.
Refill cooling system and check operation of unit.

CORVETTE INSTRUMENTS AND GAUGES

INDEX

Page

General Description ., 12-34

Service Operations . 12-35

Instrument Cluster ., 12-35

Fuel Gauge 12-35
Speedometer/Tachometer Service. 12-35

Temperature Gauge 12-35

Ammeter/Oil Pressure Gauges 12-35

GENERAL DESCRIPTION

All Corvette instruments and gauges are conveniently

located in the dash-mounted cluster. The entire cluster

is removable to permit servicing of the various instru-

ments and gauges. The indicator and cluster illuminating

bulbs may be replaced without removing the cluster from

the panel.
Regular maintenance is not required on the instrument

cluster or its components other than maintaining clean

and keeping the speedometer and tachometer cables

properly lubricated.

CHEVROLET CHASSIS SERVICE MANUAL