wiring diagram Citroen CX 1980 1.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Ill. CHECKING AND ADJUSTING
1
. Energizing the system ..................................................................................................................
2. ,Fuel pump feed ( on operating the starter ) .............................................................................
3. Fuel pump feed ( with engine running ) ...................................................................................
4. Supplementary air control ...........................................................................................................
5. Air-flow sensor ............................................................................................................................
6. Resistors and injectors ................................................................................................... . ........
7. Water temperature sensor ............................................................................................................ .
Dingram 7
8. Air temperature sensor ...............................................................................................................
9. Cold-start injector, and thermal switch ...................................................................................
10. Switch on throttle butterfly spindle ( idling speed function ) ............................................ 11
Switch on throttle butterfly spindle ( maximum power function ) ...................................... 12.
E.C.U: ......................................................................... ..~ ............................................................... . . Diagram 1 I ANNEXE : A
: Checking the ignition .................................................................................. Page 25 B
: Checking the air circuit ................................................................................ Page 26
C : Checking the fuel system and the fuel pressure ........................................... Page 27 D
: Adjusting the idling speed and the exhaust emission .............................. Page 28 NOTE
: On the wiring harness for the injectors, the numbers of the terminals on the E.C.U. terminal board are
visible on the rear section. after having withdrawn the casing secured by the end screw.

Downloaded from www.Manualslib.com manuals search engine ELECTRICAL SYSTEM
M 20/616 ENGINE
PRESENTATION OF THE DIAGRAMS
1. CIRCUIT DIAGRAM
a) Special feature
: The various circuits are presented in a functional way. therefore, where a unit is connected
to several circuits, its various sections are shown in (( exploded ~‘form on different vertical grid lines. b) Method of identification
: Identification marks are divided into three sections :
- figures which identify components ( and not leads )
- letters LG. TB. AR etc... identifying wiring harnesses
_
other letters ( Bc. F, Gr, FN, Bl . . . ) identifying the colour of the extremity of the insulating sleeve.
NOTE For the Iast group of identification marks, four cases may occur
- coloiirc~rl slc,c,f,c~ 01l 0 Ic’cirf tllc, colour of wbic-h is irrc’l~~r.nrlI
marks on diagrams Bc, Bl, Ve. Gr. . . . .
= l/o s/oc,r,c, 01) 0 I~~ocl //Ic, c-olour of whit11 .ser1’c’s ns icfc~rltijicntiot, work
marks on diagram F, Gr, F. Ve, E. Bc . . . .
- colourc~ri .s/t,c~c~c, O,I n Icncl the colour uj rrhich SCJ~,‘C’.T ns ic/cvrtijitntiorL mnrk 0.5 rr~ol/ :
marks on diagram : FN -Bl, F.Ve-Bc . . . . .
-
trr/id~~~~li~~c~d I~>nd : its position cannot give rise to any confusion. .lMPORTANT
Identification marks for components and wiring harnesses are arbitrary they have been
chosen for the sole purpose of facilitating the use of the diagrams.
‘1.17~~ colour 01’ II,c~ sl~~c~~~c~s n~ld the I~~atls ore the rnr~ly id~~~~i,/t’cntiot~ vrork,s nc-/uoll\, uscjd OII tlj~~ I~~ncls
making up /h(, cllectric s~~stern c;/ the l,c~hir-Ie. 2. WIRING DIAGRAM
This is a schematic diagram of the components as they are fitted on the vehicle.
It indicates the layout of the leads, and the approximate location of the components.
The method of identification is the same as for the circuit diagram.

Downloaded from www.Manualslib.com manuals search engine TABLE OF BULBS
Use No. Base
Type Voltage Wattage French standard
reference

ain and dipped beams 2 P. 45 t 41 yellow 12 v 40145 w R. 136-15
(for France)
Quartz-Iodine long-
range headlamps
( Optional ) 2 x 511 -H2 12
v 55 w R. 136-17
Direction indicator
lamps
Stop lamps
Reversing lamps Pear-shaped
BA.15s 19
P 25/l 12 v 21 w R. 136-12
Front side lamps and
rear lamps
Number plate lamps
Interior lamp
Boot lighting BA.lSs/ 19
Festoon 12 v 5w R. 136-13 12
v 5w R. 136-14
Dashboard lighting 5
BA. 9 s T 8/2 12 v 2w R. 136-34
Glovebox lighting 1
Warning lamp
Lighting for cigar
lighter
Ashtray lighting 13
1
1 Wedge base 12 v 1.2 w KEY TO CIRCUIT ,DIAGRAM SYMBOLS
Wiring connector
Connection block
Fuse
Switch, manual
Switch, mechanica
Switch, pressure
Switch, thermal 1 Capacitor
Motor, electric
0 Lighting
$ Warning lamp
4 a Instrument dial
Resistor
I
Rheostat
Coil winding

Downloaded from www.Manualslib.com manuals search engine , OPERATION No MA. 510-00 a : Arrallgc~rnc~r~t of lhe c,lc,rlric-al i~fslnllnlio~~ Op. MA. 510-00 a 1
( I 1975-
7 1075 ) ARRANGEMENT OF THE ELECTRICAL INSTALLATION
(
l/1075 - 7; 1975 I
PRESENTATION OF THE DIAGRAMS
CIRCUIT DIAGRAM
a) Special feature : The various circuits are presented in a functional way. therefore, where a unit is connected
to several circuits, its various sections are shown in u exploded )) form on different vertical grid lines.
b) Method of identification
: Identification marks are divided into three sections
- figures which identify components ( and not leads )
-letters LG. TB. AR. etc. . identifying wiring harnesses
-other letters ( Bc. F. Gr. FN. Bl . . . ) identifying the colour of the extremity of the insulating sleeve.
NOTE For the last group of identification marks, four cases may occur
- (,‘0lortrc~d slcc’r,cJ 011 cl Ic,clrl 16~~ CVlVJlr clj ri,hic-I7 is irrc~lc~l~nrll :
Marks on diagrams Bc, Bl, Ve. Gr . . .
- No s1c~~j1.v 011 a Icad the colour oj rr,hich scrr’es as
idrrt tijicnfiotl mark :
Marks on diagrams F.Gr, F. Ve, F. Bc, . . . .
s
(.~~l~~llrC~~/ s[ppr,cj o,, o /cod the rolot~r oj ~r~bich SOF,~C’S ns idcvttijic-ntiotl mark as wc~ll :
Marks on diagrams FN - Bl, F. Ve - Bc,
I
l’rlidcrllijic~rl Icarl : Its position cannot give rise to any confusion. IMPORTANT
: Identification marksfor components and wiring harnesses are arbitrary : they have been chosen
for the sole purpose of facilitating the use of the diagrams. 2. WIRING DIAGRAM
This is a schematic diagram of the components as they are fitted on the vehicle.
It indicates the layout of the leads, and the approximate location of the components.
The method of identification is the same as for the circuit diagram.

Downloaded from www.Manualslib.com manuals search engine TABLE OF BULBS
Use Juantity ‘B&e
Type Voltage Power French standard
Ref. No.
Yellow
Dipped beam headlamps 2 P. 45t. 41 R.
( for France) 12 v 40/45 w 136-15
Mains beam headlamps 2 x 511 H2 12 v 55 w R. 136-17
Direction indicators 4
Pear-shaped
Stoplamps 2 BA.l5s/ 19 P 25/l 12 v 21 w R. 136-12
Reversing lamps 2
Front and rear sidelamps 4
BA.l5s/ 19 12 v 5w R. 136-13
Number plate lamp 2
Interior lamp 3 Festoon 12 v 7w R. 136-05
Boot lamp 1 Festoon 12 v 5w R. 136-14
Lighting for tachometer 2 BA 9 s T
8/4 14 v 4w
and speedometer
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
oil gauge I
Lighting for instrument
3
panel Wedge base dia = 10 12 v 2w
KEY TO CIRCUIT DIAGRAM SYMBOLS
I Wiring connector
Q + Capacitor
0 Connection black Motor, electric
Fuse
b b Lighting
d ? 16 Switch, manual Warning lamp
IO Switch, mechanical Instrument dial
? d
Switch, pressure Resistor
b ?
I@ )#
Switch, thermal Rheostat
P
Coil winding

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 510-00 b : A. ~rai~gc~mc~r~l oi t/7(’ c~lc~ctrical itfstallation
i I,07jf 9, 1975 J Op. MA. 510-00 b 1
ARRANGEMENT OF THE ELECTRICAL INSTALLATION
f from 9i 197 5 ) PRESENTATION OF THE DIAGRAMS
1, CIRCUIT DIAGRAM
a) Special feature : The various circuits are presented in a functional way, therefore, where a unit is connected
to several circuits, its various sections are shown in CC exploded )) form on different vertical grid lines. i
b) Method of identification : Identification marks are divided into three sections
‘; - figures which identify components ( and not leads )
co
co - letters LG. TB. AR. etc .“. identifying wiring harnesses
0
.3 - other letters ( Bc: F Gr, FN.Bl .-.. ) identifying the colour of the extremity of the insulating sleeve.
c
r”
e NOTE For the last group of identification marks, four cases may occur
2
l C0lo~red slcrrv on a lead the colour oj r&i& is irrvler~a~~t :
Marks on diagrams Bc, Bl. Ve. Gr . . . .
c
i - NO slc~er,c 011 a ledd the colour of rr~hich .ser~‘es as ideutijicatiotl mark. :
2 Marks on diagram : F.Gr, F.Ve, F.BG . . .
l2 c
Coloured sleeve pn a lead the colour o/ which serr1c.s as identification mark as well :
Marks on diagram : FN-Bl. F.Ve-Bc. . . .
- Urlidcntijied lead : Its position cannot give rise to any confusion. IMPORTANT
: Identification marks for components and wiring harnesses are arbitrary they have been chosen
for the sole purpose of facilitating the use of the diagrams.
The colour of the sl~~e~-cs arld the leads are the only.identijication marks actually used ow the leads making
up the electric system oj the r;ehic!e. 2. WIRING DIAGRAM
This is a schematic diagram of the components as they are fitted on the vehicle.
It indicates the layout of the leads, and the approximate location of the components.
The method of identification is the same as for the circuit diagram.

Downloaded from www.Manualslib.com manuals search engine 4 OPERATION No MA. 510-00 b : it ..n < ,I ,/“c’mc’,, I oi Ill<’ ~‘IVfl,.iC NI iilClNllNtiorl
( ~KJI~I l), 107 5 j
TABLE OF BULBS
French standard
Ref No.
R 136-15 Type Voltage Power luantity Use
Dipped beam headlamps
2
Base
P.45 t 41 Yellow
for France) 12 v
40/ 45 w
x 511 H2 12 v 55 w R. 136-17 2
--
4
2
2 Main beam headlamps
Direction indicators
Stoplamps
Reversinq lamps
Front and rear side-
lamps
Number plate lamp ‘ear-shape<
P 25/ 1 3A 1
S/ 9
12 v 21 w R 136-12
3A 15s/ 9
12 v
5w R. 136-13
R. 136-05
I Interior lamp Festoon 12 v 7w
Festoon
12 v 5W R 136-14 Boot lamp
4v 4w BA.9 s
BA 9 s T 8/4
T 8/2 1 12 v 2w R. 136-34
Warning lamps
Lighting for cigar-light
Lighting for ashtray
Lighting for pneumatic
oil-gauge
Instrument panel lighti
Liqhting for odometers
I I dia. -5 12 v 1.2 w
Wedge base
Wedge base dia 10
2 12 v 2w
1 24 V 3w
KEY TO CIRCUIT DIAGRAM SYMBOLS +
Wiring connector
Capacitor
4 0 6V Connection block
Motor, electric
Fuse
6 b Lighting
u Switch, manual
A Y Warning lamp
b Switch, mechanical Instrument dial
? d
)# Switch, pressure Resistor
b Y
IQ Switch, thermal Rheostat
0 Coil winding

Downloaded from www.Manualslib.com manuals search engine Op. MA. 510-00 b 5
ARRANGEMENT OF THE ELECTRICAL INSTALLATION
PRESENTATION OF THE DIAGRAMS
1. CIRCUIT DIAGRAM
a) Special feature : The various circuits are presented in a functional way. therefore, where a unit is connected
to several circuits, its various sections are shown in (( exploded 1) form on different verticql grid lines.
b) Method of identification
: Identification marks are divided into three sections
CA
- figures which identify components ( and not leads )
00
t - letters LG. TB. AR. etc . . identifying wiring harnesses
2
2 - other letters ( Bc. F. gr: FN. Bl . . ) identifying the colour of the extremity of the insulating sleeve.
2
NOTE For the last group of identification marks, four cases may occur
>
- (~~olourc~d slec~r~c~ on a lcad the colour 0i whirb is irrvlri~aul
+
i
t
’ E marks on diagrams Bc: Bl, Ve, Gr . L
r: - No sle~r,c> OII n ICOO ~hc colour (Ii rr~hic-h sorws ns idc~~lti/icntio~/ mmk :
;: marks on diagrams F. Gr, F Ve. F. Bc . . .
- Colourc~d slwv~~ ou a lc,ad thv colour oj which svrc’es ds idwtijicatiou mark as well :
marks on diagram FN.-Bl. F.Ve. Bc ,.
- Uuidctltijied Icncl: Its position cannot give rise to any confusion IMPORTANT
: Identification marks for components and wiring harnesses are arbitrary they have been chosen
for the sole purpose of facilitating the use of the diagrams.
The rofour oi the sl~~c~ws nud the lends arc’ the on/?, ideuti/icntio// works actunlly used WI thv leads mtikiug up
the vlectrir syslvn, o/ the r,c,hicl(~. 2. WIRING DIAGRAM
This is a schematic diagram of the components, as they are fitted on the vehicle.
It indicates the layout of the leads, and the approximate location of the components.
The method of identification is the same as for the circuit diagram.

Downloaded from www.Manualslib.com manuals search engine TABLE OF FUSES
Supply to Fuse
Colour Rating Circuit protected
‘Air blower
Fast idle electro-magnet
Air-conditioning relay Mauve 16 Amps Fast idle relay
Compressor clutch
Relay for L.H. air-conditioning blower
Positive terminal of
battery (( t )) Red
Green Clock
Hazard warning
Stoplamps
Idling speed cut-off
Voltage regulator
16 Amps
I’ Horn
Anti-
Relay for compressor horn
theft Windscreen wiper and washers
device Instrument panel (lighting rheostat
battery meter. warning lamps for oil
pressure and temp., brake pad wear,
coolant, oil gauge lighting)
Direction indicators
Relay for front window-winder
Heater unit relay
E Relay for rear window-winder
Cigar-lighter on centre console
Exterior mirror
Anti- Water temperature gauge
theft Reversing lamps
16 Amps device Heated rear window
Handbrake warning lamp on instru-
ment panel
Glove-box lighting
Centre and rear interior lamps
Bonnet lighting
Boot lamp
Accessory terminal (radio 1
Front window-winder relay
Lighting switch White
Yellow 16 Amps L.H. & R.H. switches L.H. 6 RH. window-winder
Map-reading lamp ( + 5Amp. in-line fuse )
Lighting for heater controls
10 Amps Lighting for ashtray and cigar lighter
Lighting for water temp. gauge and intrument panel
Sidelamp warning lamp
L.H. and R.H. sidelamps. front and rear
Number plate lamp
Fog-lamp switch White 10 Amps Fog-lamp warning lamp
L.H. and R.H. fog-lamps
(( + 1) Battery terminal
Relay for rear window-
winder Yellow
White 16 Amps L.H. and R.H. rear cigar-lighters
16 Amps Switches -L.H. and R.H. window-winders, rear
-.. -- . ..-...- . . . -..---m-
IDENTIFICATION
OF WIRING HARNt33t3
AV Front ( no identification of circuit diagram) PD Rear R.H. door
C Boot PG
Rear L.H. door
co Compressor PR
Rear doors
M Engine Rear PC
Boot lid TRS Instrument panel Cl RCUI T DIAGRAM
L3
P.T.O.

Downloaded from www.Manualslib.com manuals search engine TABLE OF BULBS
Use Quantity Base
Type Voltage Rating French standard
Bain and dipped beams Yellow
2
‘. 43 t. 38 ( for France) l2 ’ 60/55 W
3ear sidelamps and
3tOplamps
2 BA15d P.25/ 2 12 v 211’5 W R. 136-12
Direction indicator
Foglamps
Reversing lamps
Front sidelamps
yumber-plate lamps
Under- bonnet lamp
[nterior lamp
Wap-reading lamp
Rear interior lamps
Lighting for speedo.
2nd tacho.
Slave-box lamp 4
2
2
2
2
1
3
1
2
2
1 Pear-shaped
BA15s’1g
P,. 25/l 12 v 21 w R. 136-12
BA15s/19 12 v 5w R. 136-13
Festoon 12 v 7w R 136-05
Festoon 12 v 5W R. 136--14
BA.9 s T 8/4 14 v 4w
BA. 9 s T 8/2 12v 2w R 136-34
tiarning lamps 15
Lighting for cigar
lighter 1
Lighting for ashtray 1 Wedge base dia. = 5 12 v 1.2 w
Lighting for oil gauge 1
Lighting for instrument
2 12 v 2w
panel
Wedge base diu. =
10
Lighting for odometers 1 24 V 3w
KEY TO CIRCUIT DIAGRAM SYMBOLS +
Wiring connector A
-r C,apacitor
t 0 6V Connection block Motor, electric
Fuse Lighting
b b
16 Switch,manual Warning lamp
A P
P Switch, mechanical Instrument dial
? b
)# Switch
b Y , pressure Resistor
IQ Switch, thermal Rheostat
P
Coi I winding