instrument panel OPEL MANTA 1973 User Guide

:lG- 56 1973 OPEL SERVICE MANUAL
I
FUSEqOSlTlON
1
2
3
4
5
6AMPS.
5
5
8
15
15
8ClRClJlT$ PROTECTED
OPEL 1900
& ‘MANTA (51,53,54,57,57R)
LEFT PARkING LIGHT,
LEFTTAIL LIGHT, LEFTSIDE
MARKER LIGHTS
RIGHT PApKING LIGHT, RIGH TAIL LIGHT, RIGHT
SIDE MARKER LIGHTS, INSTRUMENT PANEL LIGHTS,
SHIFT GUADRANT LIGHTS, LICENSE PLATE LIGHT,
FOG LIGHTS (RALLYE ONLY)
IGNITION IKEY
WARNIN BUZZER, TRUNK LIGHT,
HAZARD WARNING FLA,SHER, COURTESY LIGHT, CLOCK
BACKUP L’IGHTS, BLOWER MOTOR, CIGAR LIGHTER; RADIO,
SAFETY BELT WARNING BUZZER AND LIGHT
WINDSHIELD WIPERS, WINDSHIELD WASHER (RALLYE
ONLY), HORN
STOP LIGtiTS,TURN
SlGsNAL AND INDICATOR LIGHT,
PARKING BRAKE WARNING AND BRAKE FAILURE LIGHT,
FUEL GAGE, TEMPERATURE GAGE, OIL PRESSUREINDICATGR LIGHT. CHARGING INDICATOR~LIGHT,
TACHOMETER AND OIL PRESSURE GAGE (RALLYE ONLY)
AIR CONDITIONING
- 20 AMP INLINE F:USE
8
5
16
5OPEL GT
(77)WINDSHIELD WIPERS, WINDSHIELD WASHER, HORN, BACKUP
LIGHT, SP;FETY BELT WARNING BUZZER AND LIGHT
STOP LIGHTS, TURN SIGNAL AND INDICATOR LIGHT,
PARKING BRAKE WARNING LIGHT (AUTOMATIC ONLY),
BRAKE FAILURE WARNING LIGHT, RADIO, TACHOMETER,
OIL PRESiURE GAGE
& INDICATOR LIGHT, FUEL GAGE,
TEMPERATURE GAGE, CHARGING INDICATOR LIGHT
CIGAR LIGHTER, BLOWER MOTORIGNITION~KEY WARNING BUZZER, COURTESY LIGHT, CLOCK,
HAZARD WARNING FLASHER
LEFT PARKING LIGHTS, LEFT TAIL LIGHT, LEFT REAR
SIDE MAdKER LIGHT
RIGHT PA’RKING LIGHTS, RIGHT TAIL LIGHT, RIGHT REAR
SIDE MAdKER LIGHT
INSTRUMENT PANEL LIGHTS, LICENSE PLATE LIGHT.
SHIFT QUADRANT LIGHT
AIR CON,DlTlONlNG
-A/C HAS A 20 AMP INLINE FUSE AND IS
CONNECTED TO THE HOTSIDE OF FUSE NO. 23OlG3

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IINSTRUMENT PANEL
lH- 57
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/SubjectPage No. INSTRUMENT PANEL
CONTENTS
DESCRIPTION AND OPERATION:
Instrument Panel
- Opel 1900 - Manta. . . . . . . . . . . . . . . . . . . . . .Instrument
Panel-GT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIAGNOSIS:
MAINTENANCE AND ADJUSTMENTS:
MAJOR REPAIR:
Instrument Cluster Housing
- Opel 1900 - Manta . .
Windshield Wiper Switch
. , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .InstrumentCluster
Bulbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .InstrumentCluster
Housing-GT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Combined Switch Assemblies
. . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CigarLighter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPECIFICATIONS: (Not Applicable)
I H-57
1H-58
1H-59
1H-61
lH-61
1H-61
1H-63
1H-64
DESCF(lPTlON AND OPERATION2. The fog light toggle switch lower half is pushed in.INSTRUFENT PANEL (OPEL 1900. MANTA)
Headligl$ Switch
3. The parking lights and/or low beam headlights are
on.The thr& position light switch controls the head-
lights, @lights, parking lights, side marker lights,
license
plate light and instrument panel lights and is
located
4t the lower left on the instrument panel.
With thk switch knob pulled outward to the first
stop,
thi parking lights, side marker lights, license
plate
ligiit and instrument panel lights will light. Theinstrumdnt panel lights can be turned off by turning
the
lightSwitch knob counterclockwise past the first
detent. IThe fog lights are automatically turned off if the
ignition switch is on and the headlights are on high
beam.
Windshield Wiper Switch
The windshield wiper switch is located on the instru-ment panel to the right of the headlight switch.
By pull&g the lightswitch knob out all the way, the
headlights will also be turned on.
IBy pushing the lower half of this switch in to the first
stop, the wipers will operate at slow speed. By push-ing in to the second stop, the wipers will operate at
fast speed.
Fog
Ligh) Switch (Rallye)The fog
iight toggle switch is located in the instru-
ment cluster to the left of the temperature and fuel
gauge
cl+ster. The fog lights can be turned off at any
time by
t,he toggle switch, but can only be turned on
when: ,
Electrically Heated Rear Window Switch (If
Equipped)The heated rear
wind&v switch is located in the
instrument panel to the right of the clock opening.
1. The ignition switch is on or the engine running.
ITo operate (only possible with the engine running),
push in on the lower half of the switch. When the
rear window is being heated, the switch will
belighted.

1 H- 581973 OPEL SERVICE MANUAL
/-FOG LIGHT SWITCH IRALLYEi
\HEADLIGHT HIGH BEAM INDICATOR
-HAZARD WARNINGFLASHERINDICATORSYSTEM WARN,NGLlGHT
LWINDSHIELD WIPER SWlTCH -1 LFUEL&,UGELHEATER-DEFROSTER CONTROL
CHARGING INDICATOR LlGHTHEATER’ TEMPERATURE CONTROLHEATED REAR GLASS SWITCH1
301H1Figure 1 H-l
- 1900 lnstrumellt Arrangement
INSTRUMENT PANEL
(GT)I
Headlight SwitchesThere are two headlight switches, one for turning on
the headlights and the other operates an indicator
light on the instrument panel. Both switches are
located behind the left headlamp assembly.
When the headlamp lever is @shed forward,’ the
operating mechanism rotates the headlights to open
position, tuins the headlight and instrument panel
indicator light switches on until the headlamps are
locked in full open position at which time the indica-
tar lamp switch is turned off.
Along with the headlights, the headlight switch,also
turns on the parking lights, taillights, license plate
lights and rear side marker lights.
Parking Light and instrument Panel Light SwitCh
AssemblyThe left switch of this assembly is the Parking Light
Switch. By pushing inward on the lower half of thisswitch, the parking lights, taillights, license plate
lights and rear side marker lights are turned on and
can be turned off by pushing inward on the upper
half of the switch providing the headlights are not
turned on.
The center portion of this switch assembly is inopera-
tive and controls nothing.
The switch on the right end of this assembly is the
Instrument Panel Light switch. By pushing inward
on the lower half of the switch turns on the instru-
ment panel lights. The brightness of the instrument
panel lights can be adjusted by movement of the
switch. If either the Parking Light or Instrument
Panel switch becomes defective, the switch assembly
must be replaced.
Combined Windshield Wiper, Electrically Heated
Rear Window and Heater Blower SwitchThis switch assembly is located to the right of the
cigar lighter. If any one of these switches should fail,
the complete switch assembly must be replaced.

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I
IINSTRUMENT PANELlH- 59
Figure 1 H-2
- GT Instrument and Switch Arrangement
The Wihdshield Wipers have two-speed operation.
By pushing the lower half of the switch inward to the
first stop, the wipers will operate at half speed and
by deprbssing to the second stop will provide full
speed oieration. When the switch is returned to the
off posit/on, the wiper blades automatically return to
their park position.
I
The El standarFf whether or not the vehicle is equipped with
this optlpn. The engine must be running before
suffi-cient current can be generated to energize this circuit
even th6ugh the switch is depressed to the “ON”
position! When the window is being heated, a warm-
ing light’on the instrument panel will glow. This light
is locate? below the left ventilation inlet.
The
Heiter Blower Switch is a three position switch.
By depressing the lower half of the switch to the first
stop,
th& blower will operate at low speed. Whendepressdd to the second stop, the blower will operate
at high ipeed.
Four Way Hezrerd Warning Flasher SwitchThe
hazard warning flasher switch is located below
the heater controls in the center console. By
depress-ing the lower half of the switch, all four turn- signal
lamps flash at the same time. Although this system
makes use of the regulat turn signal system, it has a
separate feed wire to the switch which allows for its
operation even with the ignition switch and doors
locked. No vehicle should be driven with this system
in operation because of its universal meaning “This
Vehicle Is Not Moving”. To turn the system off,
simply depress the upper half of the switch.
MAJOR REPAIR
Removal of Instrument Cluster Housing Assembly.Opel 1900 Manta
Before starting any instrument panel repair, always
disconnect battery ground cable first.
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I1 H- 601973 OPEL SEW& MANUAL
1. Remove headlight switch button by depressing
retaining clip on shaft and pulling back on switch
knob. See Figure lH-3.
Figure 1 H-5
- Removing Cluster Screws
Figure lH-3
- Removing Headlight Switch Knob,
2. Remove two (2) plugs on cluster panel. See FigurelH-4.301H6
-Figure 1 H-4 Removing Plugs
3. Remove two (2) sheet metal screws behind plugs
on cluster. See Figure lH-5.
4. Pull off heater control knobs toward front.
j5. On top, carefully pull instrument ‘trim plate
:to-wards steering wheel and remove plate.
6. Remove two screws for lower housing
attach&t.See Figure lH-6.Figure 1 H-6 Lower Housing Attaching Screws
7. Disconnect speed0 cable at cluster by turning cou-
pling counterclockwise.
8. If equipped, pull heated rear window or fog lamp
switch out of instrument housing and disconnect
wires from switches.
9. Pull cluster right and left sides partially out and
disconnect wires on back of cluster. See Figure lH-7.
Installation
1.
P&e instrument cluster in position and connect
wires on back of cluster.
2. Pull fog light or heated back glass switch wires
into opening, if equipped, and connect wires and
replace switch.
3. Connect two screws on lower housing attachment.

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IINSTRUMENT PANELlH- 61Figwe 1 H-7
- Disconnecting Cluster Wires
4. Install instrument cluster trim plate and replace
two screw and plugs.
5. Con&t speed0 cable by turning coupling clock-
wise. 1
6. Install light
.switch button and heater control
knobs. I
I
7. Con+ct battery cable.
Removidg Windshield Wiper Switch - Opel 1900Manta I
1.
Rem* instrument cluster trim plate.
2. Corndress retaining clips and remove switch. See
Figure iH-8.
I
Figure lH-8 . Removing Windshield Wiper Switch3. Disconnect wiring connector.
Installation1. Connect wiring to switch.
2. Snap switch back into panel.
3. Replace instrument cluster trim plate.
Removing Instrument Cluster Bulbs - Opel 1900.
Manta1. Remove instrument cluster assembly.
2. Replace bulbs from back ofcluster. See Figure
lH-
9.Figure lH-9 Removing Instrument
Clu’ster Bulbs
Installation1. Replace bulbs in cluster.
2. Replace instrument cluster assembly.
Removing and Installing Ignition SwitchRefer to Group 3, Section F.
Removal of Instrument Cluster Housing Assembly.
GTDisconnect battery before making any electrical re-
pairs.
1. Disconnect battery cable.
2. Remove right access cover and remove screw. See
Figure lH-10.

I
,INSTRUMENT PANELlH-63Figure l;H-15 Removing Instrument Cluster AssemblyFibure1 H-l 6 Disconnecting Radio Wires
14. Disdonnect antenna lead-in at right lower corner
of radio!
15. Pull’ cluster housing out and turn sideways to
remove
&~y instrument gauge or switches.
I
lnstallaiion
CAUTlOI$ Fasteners in subparagraph B are impor-
tant attaching parts in that they coo/d
affect the
perform>nce of vital components and systems, and-
/or
cou!d result in major repair expense.They must
be
repraced with one of the same part number, or
with an equivalent part if replacement becomes
necessa?y. Do not use a replacement part of lesser
quality
br substitute design. Torque values must be
used as
&ified during reassembly to assure proper
retention of these parts.
1. Plug antenna lead-in cable and power source to
radio. I
2. Put i&trument cluster in position and replace six
(6) screbs in cluster.3. Connect speedometer cable.
4. Raise steering column into position and install hex
head
bolt% Be sure to install ground wire. Tighten
hex head bolts to 14 lb.ft.
5. Tighten tear lock bolts until hex head of bolt is
torn off.
6. Connect ignition and directional signal wire set
plugs.
7. Install flasher unit.
8. Replace screws in right and left lower instrument
panel and replace both access covers.
9. Connect battery cable.
Removal of Combined Switch Assemblies. GT1. Remove instrument cluster.
2. Turn instrument cluster to the side to remove
switch assembly.
3. Remove switch by removing two retaining nuts.
See Figure lH-17.
4. Remove wiring from switch.
Figure 1 H-l 7 Removing Switches
Installation1. Plug wiring into switch.
2. Install switch on panel.
3. Install instrument cluster.

I
IGAUGES1 I- 69
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3. Replace instrument housing.InstallationFiemoving~Temperature Indicator or Fuel Gauge
1. Remov+ instrument cluster housing.
2. Remov; six screws and remove both instrument
cluster
le+ See Figure 11-2.3. Pull v&age stabilizer off printed circuit and
remove fohr instrument attaching screws, as shown
in Figure
111-5.Figure
11-5 Removing Four Instrument Attaching\SCWWS
4. Take temperature or fuel gauge out of clusterlnstallatidn
1. Install itemperature or fuel gauge in cluster.
2. Replack voltage stabilizer on back of printed cir-
cuit. I
3. Replack both instrument cluster lens.
I
4. Install /instrument cluster housing.
I
IRemwind Rallye Gauges
1. Removt glove compartment.
2. Remo?e radio, if equipped.
3.
Remoje screws holding instrument carrier frominstrumejf
pane!.4. Disconpect wres from instrument gauge.
5.
Removal attaching nuts from gauge and remove.I1. Replace gauge with attaching nuts on panel.
2. Hook up wires to gauges.
3. With holding screws, attach gauge cluster to in-
strument panel.
4. Replace radio.
5. Replace glove compartment.
Removal of Temperature Sending Unit
1. Drain and collect coolant.
To drain radiator, remove end of lower radiator hose
that is connected to radiator.
2. Remove wire from temperature sending unit.
3. Unscrew temperature sending unit from thermo-
stat housing. See Figure
11-6.Figure
11-S -Temperature Sending Unitlnstalletian
1. Screw temperature sending unit into thermostat
housing after sealing unit with non-hardening per-matex.
2. Install wire on sending unit.
3. Replace coolant.

1 J- 72 1973 OPEL SERVICE MANUAL
I
WIRING IDIAGRAMS
CONTENTS
Subject
1973 WIRING DIAGRAMS: Windshield Wiper and
Horn:- Opel 1900 -
Manta....................................I.............. ..............................
Windshield Wiper and Horn’- Rallye ..........................
Windshield Wiper
andHorn!-GT
..................................
Turn Signal and Hazard Flasher
-
Opel 1900 - Manta !
........................................................
Turn Signal and Hazard Flasher
- GT ..........................
Oil, Fuel,
Temp.: Tach, Stop and Brake
Warning Light
.GT........................................................
Blower Motor, Lighter and
Rackup Lights -
Qpel 1900.Manta ........................................................
Blower Motor and Lighter
.,GT....................................
Indicator Lights and Gauges
- Opel 1900 -
Manta ........................................................................\
........
Indicator Lights
andGauges.Rallye ..........................
Dome Light and Buzzer
- Opel 1900 - Manta..........
Dome Light, Buzzer and Clock - GT ............................
Headlamps
- Opel 1900 ’
....................................................
Headlamps
.Mantaj............................................................
Headlamps and Fog Lights
.Rallye ..............................
Headlamps, Parking, Tail and Instrument
PanelLighting.GT ........................................................
Left Parking and Tail Lights
- Opel 1900 -
Manta ..................................i.............................................
Right Parking and Tail Lights
- Opel 1900 -
Manta................. ..*............................................................
Starting, Ignition and Charging
-
Opel 1900.Manta..........i.............................................
Starting, Ignition and Charging
- GT ..........................
Instrument
Panel.GT ......................................................
A/C Generatorand Regulator
- All Models..............
Seat Belt Warning System (Manual Transmission)
-Opel1909-Manta ..........................
Seat Belt Warning System (Automatic Transmission)
.Opel 1900 - Manta..........................
Seat Belt Warning System (Manual Transmission)
- GT........................................................ Page No.
1 J-74
1 J-75
1 J-76
1 J-77
1 J-78
1 J-79
1 J-80
lJ-81
1 J-82
1 J-83
1 J-84
1 J-85
1 J-86
1 J-87
1 J-88
1 J-89
1 J-90
1 J-91
1 J-92
1 J-93
1 J-94
1 J-95
1 J-96
1 J-97
1 J-98

WIRING DIAGRAMSlJ- 91
RFigure
lJ-18 Right Parking, Tail and Instrument Panel Lighting -Opel 1900. Manta