MITSUBISHI MONTERO 2000 Service Repair Manual

C
heck it e m C
heck co ndit io n (E ngin e co ndit io n) N
orm alco ndit io n 1 T
hro ttle co ntr o lse rv o (U ) C
hanges 1
4 T
hro ttle co ntr o lse rv o (V ) 1
5 T
hro ttle co ntr o lse rv o (W ) 2 T
hro ttle co ntr o l se rv o
p ow er su pply I
g nit io n sw it c h : O N S
yste m vo lt a ge 5 P
ow er su pply I
g nit io n sw it c h : O N S
yste m vo lt a ge 6 S
enso r applie d vo lt a ge I
g nit io n sw it c h : O N 4
.5 -5.5 V 7 T
hro ttle posit io n se nso r
( 1 st ch annel) I
g nit io n sw it c h : O N R
ele ase th e acce le ra to r
p edal. 0
.4 -0.8 V D
epre ss th e acce le ra to r
p edalfu lly . 4
.2 -4.8 V 1
8 B
acku p pow er su pply I
g nit io n sw it c h : O FF S
yste m vo lt a ge 2
0 A
cce le ra to r pedalp osit io n
s e nso r (2 nd ch annel) I
g nit io n sw it c h : O N R
ele ase th e acce le ra to r
p edal. 0
.9 85 -1.0 85 V D
epre ss th e acce le ra to r
p edalfu lly . 4
.0 V or hig her 2
2 I
g nit io n sw it c h -IG I
g nit io n sw it c h : O N S
yste m vo lt a ge

S
pecia lp atte rn s P
atte rn heig ht L
ow P
atte rn se le cto r D
is p la y E
ngin e r/m in I
d le sp eed

S
pecia lp atte rn s P
atte rn heig ht L
ow P
atte rn se le cto r D
is p la y E
ngin e r/m in I
d le sp eed

S
pecia lp atte rn P
atte rn heig ht L
ow P
atte rn se le cto r D
is p la y E
ngin e r/m in I
d le sp eed (
V ) I
n je cto r
o pen cir c u it
c h eck sig nal I
n je cto r
d riv e sig nal T
im e
W ave Patte rn Observ atio n Poin ts
D Check th at th e in je cto r driv e tim e is id entic a l to th e tim e
d is p la ye d on th e MUT-I I.
D Check th at th e in je cto r sig nals beco m e gre atly exte nded
b ut so on re tu rn to th eir norm al wave le ngth when th e
e ngin e is su ddenly ra ce d.
D Check th at th e in je cto r open cir c u it ch eck sig nal is
s yn ch ro niz e d wit h each ris in g portio n of th e in je cto r driv e
s ig nal. A
naly ze r N
orm alw ave
p atte rn

S
pecia lp atte rn s P
atte rn heig ht L
ow P
atte rn se le cto r D
is p la y E
ngin e r/m in A
ppro x. 1 ,2 0 0 r/m in C
om pre ssio n to p dead ce nte r S
pecia l
p atte rn s
p ic ku p A
naly ze r
w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k

P
ro bable ca use R
is e s fr o m appro x. 2V to appro x. 4.5 V at th e to p-rig ht N
orm al 2
V re cta ngula r w ave O
pen-c ir c u it in ig nit io n prim ary cir c u it R
ecta ngula r w ave at pow er vo lt a ge P
ow er tr a nsis to r m alf u nctio n V
B
-
-- N orm alw ave patte rn
w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k

S
pecia lp atte rn s P
atte rn heig ht H
ig h P
atte rn se le cto r D
is p la y E
ngin e co ndit io n W
hen th e engin e co ola ntte m pera tu re is 20_
C or belo w ,tu rn th e ig nit io n sw it c h fr o m OFF
t o ON (w it h out sta rtin g th e engin e). W
hile th e engin e is id lin g, tu rn th e A/C sw it c h to ON. I
m media te ly afte r sta rtin g th e warm engin e S
pecia l
p atte rn s
p ic ku p A
naly ze r
w
ww.W ork sh opM an uals .c o .u k
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k

P
ro bable ca use I
n duce d ele ctr o m otiv e fo rc e does not appear or is extr e m ely sm all. M
oto r is m alf u nctio nin g P
ro bable ca use C
oil re ve rs e ele ctr o m otiv e fo rc e does not appear or is extr e m ely sm all. S
hort in th e co il

T
R O UBLE SH O OTIN G
S TA NDARD FLO W OF DIA G NO STIC
T R O UBLE SH O OTIN G
R efe r to GRO UP 00 -H ow to Use Tro uble sh ootin g/In sp ectio n
S erv ic e Poin ts .
N O TE
W hen re pla cin g th e engin e-A /T -E C U, re pla ce im mobiliz e r-
E C U as well at th e sa m e tim e.
D IA G NO SIS FU NCTIO N
E N G IN E WARNIN G LA M P (C HEC K EN G IN E LA M P)
I f an abnorm alit y occu rs in any of th e fo llo w in g it e m sre la te d
t o th e GDIsyste m ,th e engin e warn in g la m p will illu m in ate .
I f th e la m pre m ain s illu m in ate d or if th e la m p illu m in ate s while
t h e engin e is ru nnin g, ch eck th e dia gnosis co de outp ut.
H ow eve r, th e warn in g la m p will illu m in ate as bulb ch eck fo r
f iv e se co nds wheneve r th e ig nit io n sw it c h is tu rn ed to th e
O N posit io n.
E ngin e warn in g la m p in sp ectio n it e m s
A ir flo w se nso r I
g nit io n co il (p ow er tr a nsis to r) B
aro m etr ic pre ssu re se nso r D
eto natio n se nso r I
n ta ke air te m pera tu re se nso r C
ra nk angle se nso r E
ngin e co ola nt te m pera tu re se nso r C
am sh aft p osit io n se nso r O
xyg en se nso r E
G R va lv e O
xyg en se nso r heate r P
urg e co ntr o lso le noid va lv e F
uels yste m malf u nctio n I
n je cto r driv e r A
bnorm alfu elp re ssu re E
le ctr o nic -c o ntr o lle d th ro ttle va lv e syste m I
n je cto r T
hro ttle co ntr o lse rv o T
hro ttle posit io n se nso r (1 st ch annel) T
hro ttle va lv e co ntr o lle r T
hro ttle posit io n se nso r (2 nd ch annel) I
m mobiliz e r syste m A
cce le ra to r pedalp osit io n se nso r (1 st ch annel) E
ngin e-A /T -E C U A
cce le ra to r pedalp osit io n se nso r (2 nd ch annel) -