EL ST inject ctio ionl nlig igni nitio tio MOTRONIC M1.S.S inje
syst system em
-36e
MOTR MOTRON ONIC IC M1.5 M1.5.5 .5 IN ECTI ECTION ON/I /IGN GNIT ITIO IO SYSTEM
INDEX 36C-2
F C
WARNING: 10.
PA493000000009
12-1997
MOTR MOTRON ONIC IC M1.S M1.S.S .S inje inject ctio ionl nlig igni niti tion on syst system em
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6-1999
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-36C
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2-1999
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ELECTRIC SYSTEM DIAGNOSI MOTRONIC M1.S.S injection/ignition system
55-36C
DESCRIPTIO
pe atin
co ditions.
(timed).
overload; gines.
tions. M1
st ti
dist ibution;
is applie
change
lo
advance accordingly
fuel consumption.
an
full load conditions
possible.
PA4930000000·12
2··1999
ELECTRIC SYSTEM IAGNOSIS MOTRONIC M1.S. injectio li itio syst
55-36e
TR SYSTEM
INDEX
WARNING:
M OT RO N
PA493000000009
M2
1-
12-1997
MOTRONI
LECT IC SYSTEM DIAG OSIS M1.S.S injectionlignition system
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55-36C
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6-1999
n je c o n /i gn i i o
s ys te m
55-36C
;;;~~~~li j r ;> - - !~ H M : :" -' : "a ! :o = ' l
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2-1999
MOTRONIC GE ERAL
th
di fe nt
an
inje ti
1.S.
injection/ignition syst
55-36C
DE CRIP IO
pe atin
ti
onditi ns
).
nd full load
fuel vapo
onditi ns
ecir ul ti
glres. Encinas i.8
tions. M1.5.5
accordin
o:
static distribution inta
ai te pe at
issued by: applie
change
v,
.m
accordingly
iue consumption. an
ul lo
onditi ns
possible
PA49300000001,?
2-1999
EL TRIC SYSTEM IA OSIS syst MOTRONIC M1.S.S injection/ig itio FUNCTIONAL
DESCRIPTIO
entire electronic ingition an injectio
system
Th eate am da enso 35 ends he ntro unit 11 nfor atio abou th corr ct om osit on th air-fuel mixtur th signal is en pi 30 of connec to 11 il pi 21 ppli th refe ence eart
Th key-operated supply lead from th line protecte he ontr fu
unit 51 is upplie
389. Th
55 -36e
ir
"key-operated"
tl by th batt ry
uppl re ches pi 511.
nergised by
om
nd igna (e rt
eading ro
supply accordingly: nd to th injector fu 46
possible to throug
th line ro ecte
an ar therefor
le oi valv 15 to th vari bl geom tr olenoid contro valv 557, to th timing variator 51 an protecte
bt in in or
ti
abou pingin
ndi-
suitably screened
signal proportionat it th ir lo at nsid ther is ls an ir temperat re sensor th referenc
by fuse 545)
Th fuel pump rela 512a receives th "key-operated" co mand signal (e rt
eadi
from in
of
temperatur
nn
njecto
signal
3, throug
spec al duty-c le Sign ls en
of th circui thereb stopping th dangerou delivery of fuel main rela S41. Th
nt ol ni 51 also ontr ls th
oils
thro gh
coil A8 nals from th differen sensors, thereb keepin al th engine operatin paramete unde control.
up lies nf rmat on abou engine
peed
1, hese tw
suitably screened.
dl peed thro gh th th ottle. nd th re er nc eart fr pi
receiv th uppl nd 29 of onnector
re uenc
ontr
itself
an
ig al corr sponding to th phas to in 23
supplies
Signalproportionat
with th tempera-
th actuat
of he hr tt
co bustio chamber. Th ai rela S4 is pe ed
contro unit itself
lv 15 upplie th he ontr unit en th
tartin from '98, an ngin empera ur sender unit L7 ha been dopted hi re ei es re er nc
PA493000000013
5-
6-1999
RI MOTRONIC M1.S.S injectionlignitio Th variable geometry solenoid contro valv (onl fo conn ct
co tr
Th tach
tric si
syste (c
sp
it
55 -36C d) re ches in 27 L1
ro ment cluste C10. ALFA
tr
This ke ssible to th gi idle sp to th increase load each time th compressor is engaged, loads.
1:the ignals re ch itfr pi conn ct from th contro unit 51 throug th specia diagnosi line self-dia si syst ls rate th si cl st
10, whic
PA493000000013
ea
fr
pi
Th co tr
it ls co tr ls th
engagement of th correspondin
in co li
sy
fan.
conn c-
6-1999
55
ELEC RI SYSTEM DIAG OSIS MOTRONIC M1.5. injection/ignitionsystem-36C
00000000 0000000 0000000 00000000
11
20
38 20
11
'00000000 '0000000 000000 00000000(' 10
Contro unit
in ou Co
to
4.
Throttle po itio
6.
Inje to
11.
Pinging sensor signal
command
5. 6.
N.C. N.C.
10.
N.C. ia i.
pote io
fl
is
ti
failur
warnin
(lin
12
li ht
3.
te
ig al
re an
al
fo
N.C. Throttle pote tiom te
14.
N.C.
19.
N.C. N.C. N.C.
signal
command 15.
N.C. N.C.
16.
Alta Ro eo CODE connection
14.
Co diti 0. 21 22 23 4. 5. 26
(bat ry ompr ss
20 rela co
an
am da
N.C. N.C. N.C. N.C. N.C. N.C.
4. 25 27 28
4. 6. 37. 38.
arth
variat
ac uato
tric
an
N.C. an
N.C. N.C.
ig al
pp
N.C.
0.
33.
im Ti in
Throttle actuat
31. 31 32
refere
fl
Ta ho 8.
pp er
pera
in
itio in
re ue
witc
(fro
N.C. N.C. qu
N.C.
turn
N.C. N.C. N.C.
PA493000000012
fa
pe
pr
ur
witch)
3.
pm
4.
Intake anif ld le id valv an (pre ly in in an Fu vapour re very le id valv
5.
Thro tl
36. 7.
actuat
an
an
N.C. Ig itio Ig
il
tr
fo fo
2-1999
.S.S
io
it
Ignition coil
BLU'®!ID
BLU'®[[]
2 .S G R N · G 1 3 3
2 .S C RN · G 1 3 3 - 0- G R
- 0- G R
YEL'®[[]
YEL'®!ID
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2 .S C RN · G 1 3 3 - 0- C R
Instrument
cluste
Instrument
cluste -BLKG730
PNK-BLK.@
LTBG308 LTB'®[E]
Fusebox
Fusebox
.1
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2-1999
injectionlignition system ..JOMPONENTS AN
55 -36e
CONNECTORS (continued Rear services connecto
Injectio wiring eart
2 . 5P N K - W H T • G 9 9 b
18RNO®f
Dashboard/engine wiring connecto
Seat crossmembe eart
158LK
lectr. injectio
--<>-
lYEL'~S3
lGRN.
lGRN•
r-il
CV
PA493000000012
G133a 1.5RED-BLK· 1.5RED-BLK-<>
WHT.@
lYEL
48LK
wiring connecto
(*
lYEL·®rn
G106
lYEL'®1II
10
10
[II
lYEL
lGRN.~
1.5RED-BLKj
1.SRED·0
ill
G RN -
5 GR N
2.5GRN- ------'
-9
2-1999
-36C
MOTRONIC M1.S.S injection/ignition system
Engin sensor connector
LTB·®m lLTB.@
lLTB
fu
RED·
G106<;>-1
GR
Sender fo engine coolan temperatur au
EL
LTS.@m
Inertial switch
BL
2.5RED
-of-
_1_----..._
BL
1 .5 P P L -B L
G7
1 .5 P P L - B L K
Tachometri sensor
...;.2 __
lLTB G308
YEL.@[[J>YEL.@ Evaporativ
WHT
G1 30
solenoid valv
ro
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BLU .®[[
lWHT-GRN.
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from Ma '9 PA493000000013
6-1999
IS MOTRONIC M1.S.S
~OMPONENTS A N
C ON NE CT OR S E le c r i
55 -36e
u ed )
u e p um p
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Injectors
YEL
lYEL
·®lID
·®llil
GRN
G133 --<>-lYE
lYEL G133 -<>-lYEL
GRN·®lID
lYEL
YEL
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G133 --<>-lYL
Ai
o w m e te r
E ng in e e m pe ra tu r
s en so r
1.SRED-BLK·
YEL.
RED--<>
llil
YEL·®l
LTB-BL
WHT-BLK·
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12-1997
LE TR DI M1.S.S injectionlignition system
MOTRONI
-36C
Motronic contro unit LTB.® BRN.@ill
14
15
BRN-WHT.@ _4_
11
N.C. N.C.
REO GR N.C.
27
N.C.
....!!_
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1RED-BLK
ORN-
K-
1.SRED
19
LTB-WHT.®
l.SRED-BLK' G1330
20
LTB-BLK®
ORN' l10RN.
PNK-BLK.@ 10 11
24
N.C. WHT-YEL' ORN·G99
N.C.
30
N.C.
31
N.C.
32
N.C.
33
N.C.
34
N.C.
35
BLK GRN-BLK N.C. N.C. 37
PPL-BLK.®
38
GR -Y
N.C. N.C.
Motronic contro unit
_1_
12
10
N.C. 19
_2_
\@
38 26
N.C. YEL.@ _5
YEL.0
_5_
YEL. YEL.®m
__!2_ 18
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GRN·
ll
27 28
N.C.
19
N.C.
20
N.C.
YEL.®m
29
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WHT.@
YEL.0rn
__Q_
WHT.®
N.C. N.C. BLU-
.BLU.(§)
WHT.(§)
YEL.@
YEL.@
BLU.®
N.C. 32 33
YEL·G)m _1_1
r-,
34
GRN.@
BLU'@ BLU'@ BLU'@
BLU'@ 36 37 38
N.C. BLU.G)
ill .\
BLU·0OJ
C)
PA493000000013
2-
6-1999
ELECTRIC SYSTEM DI GNOSIS MOTRONIC M1.S.S injection/ignition system PO
on
55 -36C
ed Timing variator
-<>- 2.5GRN
2.5GRNG1330
86
BRN-WHT
RED 2.SRED 30______
WHT 1330-0-- WH 10RN'0@]~ORN
85
Pingin
sensor
llil--<>--
YE
GRN'®[[]
YEL'®[[] YEL'®[[]
GRN'®[[]
--<>--
TG
YEL
BLU'®[ID
BLU'®rn:J
4RED·0
2.SRED'@
K·SRED
2.SPNK-BLK 2.SRED.@
LK'® 4RED
2.SRED-BLK
__
2.5RED.@
PA493000000010
3-
1-1998
IC
COMP NENT
ND
t>:
R ED - L K
ti
it
te
NE
=>:
2 .S R ED -B L K
2.5RED-BLK
1 RE D -B L K
RED'®l 1330
--1c>-
K•G
1.SRED
[A
1 RE D -B L K
BLU'® BL
2.SRED-8LK
2 .S R ED - BL K
2 .S R ED - BL K
1 .S R ED -B L K
/i
55-36C
llil
BL BLu.®J 1330
-<>-
r iT - Y E L .
BL
PA493000000012
2-1999
OTRONI
1. .S injectionlignition system
-36C
.OCATION OF COMPONENTS
(.
(*) (**)
Whit base Blac base Light blue fuseholder Black fuseholder from
PA493000000013
ay '9
5-
6-1999
STEM MOTRONIC M1.S.S injectionlignitio
IS system
55-36C
CHECKING COMPONENTS Rp
sensor SPECIFICATIONS Se so windin (20 DC
Sender en in
re istanc
emperature
SPECIFICATIONS 20 DC
2300
So da La bd
SPECIFICATIONS Heatin
resistance
Injectors
SPECIFICATIONS Windin
PA493000000013
resistance
.9
0.
6-1999
ELEC IC SYSTEM IA OSIS MOTRONIC M1.S.S injectionlignition system II
-36e
tial switch
SPECIFICATIONS
he
Pingin
continui
et
en pi
an C: this
sensor
SPECIFICATIONS Resonanc
frequenc
?::1MQ
Impedence
Variable
eo etry sole oi
alve
SPECIFICATIONS Windin
PA493000000012
resistance
40±SQ
2-1999
LECT IC YSTE DI GN SI MOTRONIC M1.S.Sinjectionlignitio system Fu
