1979 Citroen CX Indicator

Downloaded from www.Manualslib.com manuals search engine 12 OPERATION No MA. 510-00 b : .A rlan ement oi the CIerlrical iustallatiw
I:
( from 9/ 1075 i
TABLE OF BULBS
Use Quantity Base
Type Voltage Power French standard
Ref. NO.
Yellow
3ipped beam headlamps 2 P. 45 t 41
(for France) 12 v 40/‘45 w R. 136-15
Main beam headlamps 2 x 511 H2 12 v 55 w R. 136-17
Direction indicators 4
Stoplamps 2 BA 15s/19 Pear-shaped 12 v 21 w R. 136-12
P 25/ 1
Reversing lamps 2
Front and rear side-
lamps 4 BA15s/19 12 v SW R. 136-13
!Iumber plate lamp 2
[nterior lamp 3 Festoon 12 v 7w R. 136-05
Boot lamp 1 Festoon 12 v 5 w. R. 136-14
Lighting for tachometer
2 BA 9 s T
md speedometer 8/4 14 v 4w
Lighting for glove-box 1 BA 9 s T 8/2 12 v 2w R. 136-34
Warning lamps 14
Lighting for cigar-
lighter 1
Wedge base dia. 5 12 v 1.2 w
Lighting for ashtray 1
Lighting for pneumatic
1
gauge
Instrument panel
lighting 2 12 v 2w
Wedge base dia.. 10
Lighting for odometers 1 24 v 3w
KEY TO. ClRCUlT DIAGRAM SYMBOLS +
, Wiring connector
I lavl
P
Connection block ( &way ) Connection block ( &way )
Fuse Fuse
A Switch, thermal
A P
P Switch; mechanical Switch; mechanical
? A
b ?
I@ )# Switch, pressure Switch, pressure
Switch, thermal Switch, thermal
? Capacitor
Motor, electric
Lighting
Warning lamp
ltistrument dial
Resistor
Rheostat
Coil winding

Downloaded from www.Manualslib.com manuals search engine Op. MA. 510-00 b 19 ELECTRONIC FUEL INJECTION ( i/ 1077 -)
TABLE OF FUSES ( LHD )
SUPPlY Fuses
Circuits protected
Ratinq Colour
Lightinq for qlove-box, bonnet and boot
Centre and rear interior lamps
Accessory terminal
Front L.H. mirror
16 Amps Green (F-2)
Flasher unit. and handbrake warninq lam1
Anti-theft
E Water temperature gauge
switch Cigar lighter
Reversinq lamps
Heated rear window, and warning lamp
+ )) Battery terminal
Instrument panel fuel gauge and low fuel
warninq lamp
Anti-theft
switch Liqhtinq for speed0 and tacho ( Rheostat )
16 Amps
(RFe3d)
_ Battery meter (thermal voltmeter ).
tachometer, warning lamp for brake pad
wear, coolant and engine oil temp. 1
enqine oil and hydr. fluid pressure.
direction indicators ( flashing )
Direction indicators
Voltage requlator
Windscreen wiper and washers
Horn
Windinq for relays for heater unit front
window-winders and horn compressor
Hazard warning lamps
Stoplamps
Clock
Winding for r-elays, for front and rear foglamps
Front and rear, L.H. and R.H. sidelamps, + warninq lamp
Number plate lamps
Lighting switch 10 Amps Yellow Liqhtinq for instrument panel (battery meter. clock. odo-
meters )
(Fl) Lighting for iqnition switch, cigar-lighter, ashtray, water
temp. gauge and heater controls.
Map-reading lamp and fuse ( 5 Amps )
10 A.mps Blue
(F4) Rear foglamps and warninq lamp
Relay for window-
winder 16 Amps White
Front L.H. and R.H. window-winder motors (FE)
Relay for air-
conditioning 16 Amps Mauve
(F5) Air blower
Air-conditioning, compressor clutch, windinq for L.H.
electric fan relay, idlinq speed control electro-valve
( according to model )
Alternator 81) Amps
Incorporated fuse ( on printed circuit ) Components not protected
: Starter, and horn compressor
- OII anti-theit .switrh : ignition circuit, E.C.U. and injector relay, petrol pump, electric fan relays and electric
fans
- cm lighting switch : main and dipped beam headlamps and warning lamps, front foglamps, winding for rear foglamp
cut-out relay.

Downloaded from www.Manualslib.com manuals search engine 20 OPERATION No MA. 510-00 b : Ivstallatiov oj the c,lcctriral iv~stallatiov
( [KM 9 / I 07 5 )
TABLE OF BULBS
juantity Type French standard
Ref. No. Power
60/ 55 W Voltage
12 v Base
P. 43 t 38 Use
lipped and main beam
Front foqlamps
Direction indicators
Rear foqlamps
Reversinq lamps
Rear sidelamps
and stoplamps
Front sidelamps
Number plate lamps
Under bonnet ‘lighting
Interior lamps -centre
-rear
Boot lamp
Map-reading lamp
&iqhtinq f . speed0 & tachl
~~$;~q for anti-theft
diqhtinq for glove-box
-iqhtinq for coolant
.emp. gauge
[nstrument panel
warning lamps
Lighting for cigar -
lighter
Lighting for ashtray
Lighting for oil gauge
Lighting for instrumen
panel
Lighting for
odometers Yellow
for France )
H4 2
x 51 H2 12 V 55 w
--
21 w R. 136-17
4
2
2 Pear-shaped
P 25/ 1 R. 136-12
BA. 12 v
12 v 21,‘5 W R. 136-12
2 BA. 15 d P 25/2
R. 136-13
BA. 15s/ 5w
7w
5w
5w 12 v
12 v
12 v
14 v 3
2 R. 136-05
Festoon
Festoon
BA.9s
T 874 R. 136-14 1
1
2
1
T 8/2 12 v 2w R. 136-34
BA. 9,s
16
Wedge base dia 5 12 v 1.2 w
Wedge base dia. 10 2w 12 v
24 V 3w
1 --
KEY TO CIRCUIT DIAGRAM SYMBOLS +
Wiring qonnector
0 Capacitor.
4 6V Connection block (S-way )
Motor, electric
Fuse Lighting
b b
Switch, manual Warning I amp
A P
P u
Switch, mechanical Instrument .dial
P A
)# Switch, pressure Resistor
b P
IQ Switch, thermal Rheostat
?
Coil winding

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 510-00 b : A,.,.N//~w~/w/ of I/J<, c~l~~clriccrl iti7tollnliou (0 1075 -i Op. MA. 510-00 b 21 DESCRIPTION OF COMPONENTS
dent.
lark Description and Location Ident.
mark Description and Location
1
Front R.H. sidelamp ............................ 112 42
Engine oil temperature switch 71 ...............
Front R.H. direction indicator .... ... .........
66 43 Water temperature sensor .... .............. 92
2 Front R.H. foglamp 107 44 Reversing lamp switch ................... 95
..................... ....... ....
3 R.H. headlamp main beam
;:: :: Horn compressor relay ..................... 53-54
............... ....
dipped beam Window- winder relay .................. 44-45
......................
47
Heating and air-cond. relay ...............
4 R.H. electric fan ............................... 35 42-43
48
.............. 34-35
5 LH electric fan ( air--conditioning ) Relay for R.H. electric fan
........ 37 49
Relay for L.H. electric fan (air-cond. ) ..... 36-37
6 Thermal switch for electric fan .............. 34 50
R.H. brake unit
........... 80-81
......... ............
7 Horn
....................................
.......... ..... 55 51
Widscreen washer pump .............. .... 56
8 L.H. headlamp main beam ........... ..........
gg 52 Electra-valve for fast idle (air-cond. ) ......... 41
dipped beam ......................
100 53
Windscreen wiper motor ............. 57 to 60
9 Front L.H. foglamp ... . ...............................
106 54
Air blower ..............
........... ..... ........... 42 10
Front L.H. sidelamp ......................... ... ... .. 111 55 Regulating thermal switch (Air-cond. ) .... 40
Front L.H. direction indicator
63 56 ................... Hydraulic press. switch .......................
75 11
Air-flow sensor 13 to 18 57
........................... ... Injector resistor housing .................... .20 to 23 12
Coil. and ignition module
28 to 30 58 Fuse box ............................ 42-45-58-90-105-l 11
................. 13
Butterfly spindle switch 10 to 12 S9 Hydraulic fluid level switch ...................... 76
.................... 14
Starter 3 t0 5 6o L.H. brake unit ........................ 78-79
..........................................
88 15
Cold start injector 11 61 Front R.H. door lighting switch ....... ....
.................................. 16
Alternator 5 62 Glove-box lighting ................................ 90
...........
....... ..................... ....... 17
Compressor clutch ( air-conditioning ) 40 63 Map-reading lamp and fuse ............... ..... ... 110
.........
64 18
Pressure switch 40 Cigar-lighter and lighting ...................... 94-l 12
........................................
65 Ashtray lighting 113 ..................................... 19
Double relay for injection control 7 to 27 ............ 66
Radio(equip. locat. t aerial ) .......... 83 to 85
20 L.H. electric fan relay (air-conditioning) 38 = 39 67
Handbrake flasher unit housing .............. 97-98 21
Rear foglamp cut-out relay (main beam) 104 to 105 68
Electronic control unit (injection ) ....... 8 to 25
22 Front foglamp relay ....................... .. 106 - 107 69
Lighting for pneumatic oil- gauge .............. 72
23
Supply relay for rear foglamps ............ 106 to 108 70
Anti-theft switch ............................ 4-28-58-93 24
u Diagnostic )) socket 52 ......... ....... ... ..... ........ 33 71 Stoplamp switch ...................................... 25
Connector for HT sensor 72 ................... 87
....................... 32 Front L.H. door lighting switch 26
Water temp. sensor ( Injection ) Rear view mirror ............................ 92 to 95
... 25 73
27
Ignition sensor on No. 4 cylinder 32 74 Rear view mirror switch ................... 92 to 95
............. 28
Injector for No. 4 cylinder ...................... 23 75 Front L.H. window winder motor .......... 45-46 29
Injector for No. 3 cylinder 22 76 Front R.H. window-winder motor .............. 49-50
...........................
......................... 85 30
Injector for No. 2 cylinder 21 77 Speaker ( in front R.H. door )
......................... 78 Centre interior lamp ............................... 87 to 89 31 Injector for No. 1 cylinder 20 ............................. 79 R H. window-winder switch .................... 49 to 51 32 Thermal switch
........... .......................... 10-11 8 o
Interior lamp switch .................... ................ 88
33 Supplementary air control ............................
8 81
Air-blower switch and lighting .......... 42-112-113 34 T.&c.
SenSOr ........................................... 31 82 Air-conditioning switch ............... ............ 40
35
Magnetically triggered distributor ........ 29 to 32 83
L.H. window-winder switch .....................
45-47 36
Compressor for air horns ............. ..... ......... 53 85 Handbrake contact ......................................... 98 37
Voltage regulator 5-6 86 Water temp. gauge + lighting ..................
92-110
....................................... 38
Battery 1 87 Windscreen wiper timer
.......................... 59 to 61
....................................................... 39
40
41
Under-bonnet lamp ........................................ 81 88 R.H. switch unit for lighting
Engine oil pressure switch 73 - Speedo. t tacho. lighting rheostat ............ 79
............................
99-103
Coolant temperature switch 77
- General lighting ................................
....... ....................
- Rear foglamps ..................................... 105

Downloaded from www.Manualslib.com manuals search engine dent,
nark
B9
90
DESCRIPTION OF COMPONENTS
Description and Location
instrument panel
Speed0 and tacho lighting
79 ..............
. Tachometer 25-26
........... ............
I Battery meter and lighting ............ 81-107
Fuel gauge ...................... 83
- Lighting for odometers
...................... 108
- Clock and lighting
.................... 70-109
warning lamps for
- Heated rear window ............................... 97
- Dipped beam ... ..... ............................ 101
- Front brake pad wear ...................... 80
- Low fuel ....
............................ 82
-. Engine oil temperature ..... .................
71
- Coolant temperature ...........................
77
- Engine oil pressure ....... .... ............ ...
73
- Emergency STOP (and test button )74-76-78
- Hydraulic fluid’pressure ................... 75
- Hazard warning lamps ....................... 63
- Sidelamps 106
....................... ..... ..............
- Direction indicators ....... ............... 69
- Main beam
99 .....
.............................. ...
- Handbrake
98 ........ ............ ., .............. ...
- Rear foglamps .......... ................. ..lO 4
L.H. switch unit
- Horns 54-55
..... ....................................
- Direction indicators and hazard warning
lamps ...................................... 63 to 67
- Windscreen wiper and washers ...... 56 to 59
- Front foglamps ........ ....... ................. 111
DESCRIPTIOI dent
nark
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106 Description and Location
Ignition switch lighting .................... : 110
Flasher unit ....................... 68-69
Speaker ( in L..H. front door )
......... 84
Rear R.H. door lighting switch
90 ..........
Fuel pump 7
.............................
Rear R H. interior lamp ....................
90
Fuel qauge rheostat
.................... 82-83
Boot lamp
....................................... 86
Heated rear window
......................... 96
Rear L.H. interior lamp
.................. 89
Rear L.H. door lighting switch
............ 89
Rear R.H. lamp cluster
- Foglamp
..................................... 105
- Reversing lamp .............................
95
- Direction indicator ...................
65
- Stoplamp ........... ......................... 51
- Sidelamp ...........................
105
R .H. number plate lamp .......... ... ........
114
L H. number plate lamp ..... ........... ...
113 Boot lamp switch .................................
86
Rear L.H. lamp cluster
- Foglamp
....................................... 104
- Reversing lamp ................................
94
- Direction indicator ............................. 64
- Stoplamp
........................................ 52
- Sidelamp
... ..... ................................. 112
IING HARNESSES
I Id. Mark Description
I Id. Mark Description
AV
Front wiring harness FV Flying lead
No mark on circuit diaqram
IC Injection. on body- shell
R Rear IM Injection, on engine
C Boot
M Engine
CL Air-conditioning (optional ) PC Boot lid
co Compressed air horn
TB Instrument panel
D (( Diagnostic 1) UF Front brake pad wear ( 2 harnesses )

Downloaded from www.Manualslib.com manuals search engine II. OPERATING PRINCIPLE
The refrigerating system has four main components
- the compressor ( 4)
- the condenser ( 7)
- the pressure release valve (3 i
*
the evaporator ( 1 )
The refrigerating fluid used is the F. 12
L.64.1 a
Compressor
(4) - Manufacturer ASPERA FRIGO. type HG 700 ( or SANKYO type SD 508 on EMBAUT CLIMAT )
ASPERA twin-cylinder or
SANKYO five-cylinder rotary 1 Fitted onto the gearbox by means of a mounting bracket
The compressor circulates the refrigerating fluid draws in the fluid which is in a low-pressure vapour state
compresses it ( which increases its temperature ) and expels it into the condenser.
The condenser is driven by the engine via the water pump by two trapezoidal belts ( ASPERA ) or one trapezoidal
belt ( SANKYO ).
An electro-magnetic clutch is fitted to the compressor pulley. Its operation controlled by a switch on the centre
console is intermittent due to the presence of an ambient temperature thermostat ( 2 ) which is not adjustable, and
which senses the temperature near the evaporator cooling fins.
In case of excessive pressure in the return circuit, a pressure switch (6) opens the supply circuit to the compressor
clutch.
Condenser (7 ) - Manufacturer CHAUSSON
It allows the fluid to condense and to release its latent heat to the outside air circulating around the fins. It is
secured to the front L.H. side of the engine cooling radiator At the condenser outlet, the fluid is in the high-
pressure liquid state. The fluid flows through the tank ( 5) ( which contains a dehydrating filter ) and flows
towards the pressure release valve.
A 5-blade electric fan accelerates the circulation of air around the condenser fins.
De-watering tank .( 5) - Manufacturer : SINGER
It contains a dehydrating filter element, and is fitted with a visible level indicator, which allows the amdunt .and
state of the fluid to be checked, and a high-pressure switch (6).
The de-watering tank is fitted on the front panel by means of a mounting bracket at the rear L.H. side of the
engine cooling radiator.
Pressure-release valve (3) : It is incorporated in the heater unit, and regulates the output of fluid towards the
evaporator.
Evaporator ( 1) - Manufacturer SOFICA
The air flowing through the evaporator releases its calories, ‘which will cause the low pressure fluid to be
transformed into vapour.
It is incorporated in the heater unit upstream from the heater radiator.