MITSUBISHI PAJERO PININ 2000 Manual Online


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D IA G NO SIS T R O UBLE SH O OTIN G F LO W
R efe r to G RO UP 0 0 ± H ow to U se T ro uble sh ootin g/In sp ectio n
S erv ic e P oin ts .
N O TE
I f th e E C U is r e pla ce d, th e im mobiliz e r-E C U a nd ig nit io n k e y
s h ould r e pla ce d to geth er w it h it . E ach E C U h as a n in div id ual
i n fo rm atio n fo r im mobiliz e r-E C U, a nd th e in div id ual in fo rm atio n
i s r e gis te re d in th e im mobiliz e r-E C U.
D IA G NO SIS F U NCTIO N
E N G IN E W ARNIN G L A M P ( C HEC K E N G IN E L A M P)
I f a n a bnorm alit y o ccu rs in a ny o f th e fo llo w in g it e m s r e la te d
t o th e G aso lin e D ir e ct In je ctio n ( G DI) s yste m , th e e ngin e
w arn in g la m p w ill illu m in ate .
I f th e la m p r e m ain s illu m in ate d o r if th e la m p illu m in ate s w hile
t h e e ngin e is r u nnin g, c h eck th e d ia gnosis c o de o utp ut.
E ngin e w arn in g la m p in sp ectio n it e m s
O xyg en s e nso r A
ir flo w s e nso r I
n ta ke a ir te m pera tu re s e nso r T
hro ttle p osit io n s e nso r ( 1 st c h annel) T
hro ttle p osit io n s e nso r ( 2 nd c h annel) E
ngin e c o ola nt te m pera tu re s e nso r C
ra nk a ngle s e nso r C
am sh aft p osit io n s e nso r B
aro m etr ic p re ssu re s e nso r D
eto natio n s e nso r I
n je cto r A
bnorm al c o m bustio n I
m mobiliz e r s yste m A
bnorm al fu el p re ssu re B
ra ke v a cu um s e nso r F
uel s yste m m alf u nctio n A
cce le ra to r p edal p osit io n s e nso r ( 1 st c h annel) A
cce le ra to r p edal p osit io n s e nso r ( 2 nd c h annel) E
le ctr o nic -c o ntr o lle d th ro ttle v a lv e s yste m

       
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    5 4 C . T
hro ttle p osit io n
s e nso r ( 1 st c h annel) (
1 ) Dis a ble s le an-m ix tu re c o m bustio n.
( 2 ) Contr o ls th ro ttle v a lv e o penin g a ngle b y c lo se d lo op c o ntr o l b y u sin g th e th ro ttle p osit io n
s e nso r ( 2 nd c h annel) s ig nal.
( 3 ) Dis a ble s th e th ro ttle v a lv e o penin g a ngle c o ntr o l w hen th e th ro ttle p osit io n s e nso r
( 2 nd c h annel) s ig nal is a ls o d efe ctiv e . T
hro ttle p osit io n
s e nso r ( 2 nd c h annel) (
1 ) Dis a ble s le an-m ix tu re c o m bustio n.
( 2 ) Contr o ls th ro ttle v a lv e o penin g a ngle b y c lo se d lo op c o ntr o l b y u sin g th e th ro ttle p osit io n
s e nso r ( 1 st c h annel) s ig nal.
( 3 ) Dis a ble s th e th ro ttle v a lv e o penin g a ngle c o ntr o l w hen th e th ro ttle p osit io n s e nso r
( 1 st c h annel) s ig nal is a ls o d efe ctiv e . E
ngin e c o ola nt
t e m pera tu re s e nso r C
ontr o ls a s if th e e ngin e c o ola nt te m pera tu re is 8 0C . ( N ote th at th is c o ntr o l w ill c o ntin ue
u ntil th e ig nit io n s w it c h is tu rn ed o ff e ve n if th e s e nso r s ig nal r e tu rn to n orm al. ) C
am sh aft p osit io n
s e nso r C
ontr o ls a cco rd in g to th e c o ndit io ns b efo re a fa ilu re is d ete cte d. V
ehic le s p eed s e nso r (
1 ) Dis a ble s le an-m ix tu re c o m bustio n. H ow eve r, if a p re dete rm in ed tim e e la pse s a t a n
e ngin e s p eed o f 1 ,5 00 r /m in o r m ore , th e le an-m ix tu re c o m bustio n w ill r e tu rn to n orm al.
( 2 ) Dis a ble s le an-m ix tu re c o m bustio n d urin g e ngin e id lin g. B
aro m etr ic p re ssu re
s e nso r C
ontr o ls a s if th e b aro m etr ic p re ssu re is 1 01 k P a. D
eto natio n s e nso r H
old s th e ig nit io n tim in g a t th at fo r s ta ndard p etr o l. I
n je cto r (
1 ) Dis a ble s le an-m ix tu re c o m bustio n.
( 2 ) Shuts d ow n e xh aust g as r e cir c u la tio n. A
bnorm al c o m bustio n D
is a ble s le an-m ix tu re c o m bustio n. C
om munic a tio n lin e
w it h A /T -E C U D
is a ble s ig nit io n tim in g r e ta rd c o ntr o l ( e ngin e a nd tr a nsm is sio n to ta l c o ntr o l) d urin g s h if t
c h ange. A
lt e rn ato r F R te rm in al D
is a ble s in hib it io n c o ntr o l o f th e a lt e rn ato r o utp ut a cco rd in g to e le ctr ic a l lo ad ( tr e ats th e
a lt e rn ato r a s if it is c o nve ntio nal o ne). F
uel p re ssu re s e nso r (
1 ) Contr o ls a s if th e fu el p re ssu re is 5 M Pa ( if th ere is o pen o r s h ort c ir c u it ) .
( 2 ) Turn s o ff th e fu el p um p r e la y ( if th e fu el p re ssu re is e xce ssiv e ly h ig h).
( 3 ) Shuts o ff th e fu el in je ctio n ( If a n e xce ssiv e ly lo w p re ssu re is d ete cte d o r th e e ngin e
s p eed e xce eds 3 ,0 00 r /m in ).

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Dis a ble s le an-m ix tu re c o m bustio n.
Shuts o ff fu el s u pply w hen e ngin e s p eed e xce eds 3 ,0 00 r /m in .
( 2 ) Erro r in c o m munic a tio n fr o m th e e ngin e-E C U to th ro ttle v a lv e c o ntr o lle r
Dis a ble s le an-m ix tu re c o m bustio n.
Shuts o ff fu el s u pply w hen e ngin e s p eed e xce eds 3 ,0 00 r /m in .
The th ro ttle v a lv e c o ntr o lle r c o ntr o ls th e th ro ttle v a lv e o penin g a ngle b y u sin g
t h e a cce le ra to r p edal p osit io n s e nso r ( 2 nd c h annel) s ig nal. N
O TE
W hen th e e le ctr o nic -c o ntr o lle d th ro ttle v a lv e s yste m is s to pped, th e e ngin e w arn in g la m p fla sh es.

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ep air K
FgcL tF aoe F aF uhnu F7S f AT W
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H f
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H W
9 f
eFtE aoe F ae L u Frr aP n F as FoP FFu aoe F aF uhnu F7
S f A aL uC aoe F a. -mh Fu ar F ur. at . uuFto. T O
H f
eFtE ao . bscF ar md go. d T O
H i
FLrb F aL oaoe F a. -mh Fu ar F ur. at . uuFto. aw 7( 'T
Dis co nnect th e c o nnecto r, a nd m easu re a t th e
h arn ess s id e.
( 1 ) Volt a ge b etw een 1 a nd e arth ( Ig nit io n s w it c h : O N)
O K: Syste m v o lt a ge
( 2 ) C ontin uit y b etw een 2 a nd e arth
O K: Contin uit y (
1 ) N G C
heck th e o xyg en s e nso r. ( R efe r to P .1 3A -1 05.) N
G C
heck th e h arn ess w ir e b etw een th e o xyg en
s e nso r a nd th e e ngin e c o ntr o l r e la y c o nnecto r,
a nd r e pair if n ece ssa ry .
NG R
ep air f
eFtE aoe F ae L u Frr aP n F as FoP FFu aoe F aF uhnu F7
S f A aL uC aoe F a. -mh Fu ar F ur. at . uuFto. x aL uC
F gLn anI au FtF rrL m T O
H f
eFtE ao . bscF ar md go. d T K
FgcL tF aoe F aF uhnu F7S f ATW
9
O H W
9 W
9 f
eFtE ao . bscF ar md go. d T
W 9 O
H


    
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R ep air K
FgcL tF aoe F aF uhnu F7S f AT W
9
R ep air K
FgcL tF aoe F aL n aIc. P ar F ur. T W
9
R ep air K
FgcL tF aoe F aL n aIc. P ar F ur. T W
9
R ep air K
FgcL tF aoe F aF uhnu F7S f AT W
9 O
H f
eFtE ao . bscF ar md go. d T O
H O
H f
eFtE ao . bscF ar md go. d T Y
6 !aW 9 i
FLrb F aL oaoe F aF uhnu F7S f A at . uuFto.
f 7U 4T
Connect th e c o nnecto r
Volt a ge b etw een 7 6 a nd e arth
( Ig nit io n s w it c h : O N)
O K: 6 ± 9 V N
G O
K C
heck tr o uble s ym pto m . O
K N
G C
heck th e h arn ess w ir e b etw een th e
e ngin e-E C U a nd th e a ir flo w s e nso r,
a nd r e pair if n ece ssa ry . O
K C
heck tr o uble s ym pto m . (
2 ), ( 3 ) N G M
easu re a t th e a ir flo w s e nso r c o nnec-
t o r A -7 1.
Connect th e c o nnecto r
( U se th e te st h arn ess M B991709)
( 1 ) Volt a ge b etw een 3 a nd e arth
( E ngin e: Id lin g)
O K: 2.2 ± 3 .2 V
( 2 ) Volt a ge b etw een 7 a nd e arth
O K: 0 ± 0 .1 V
( E ngin e: Id lin g)
O K: 6 ± 9 V
( E ngin e s p eed: 4 ,0 00
r /m in ) (
1 ) N G M
easu re a t th e a ir flo w s e nso r c o nnec-
t o r A -7 1.
Dis co nnect th e c o nnecto r, a nd
m easu re a t th e h arn ess s id e.
( 1 ) Volt a ge b etw een 4 a nd e arth
( Ig nit io n s w it c h : O N)
O K: Syste m v o lt a ge
( 2 ) Volt a ge b etw een 3 a nd e arth
( Ig nit io n s w it c h : O N)
O K: 4.8 ± 5 .2 V
( 3 ) C ontin uit y b etw een 5 a nd e arth
O K: Contin uit y (
1 ) N G C
heck th e h arn ess w ir e b etw een th e
a ir flo w s e nso r a nd th e e ngin e c o ntr o l
r e la y, a nd r e pair if n ece ssa ry . N
G
R ep air f
eFtE ao . bscF ar md go. d T


    
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R ep air K
FgcL tF aoe F aF uhnu F7S f AT W
9
R ep air O
H f
eFtE ao . bscF ar md go. d T O
H W
9 f
eFtE aoe F ae L u Frr aP n F as FoP FFu aoe F aF uhnu F7S f A aL uC aoe F anu oL EF
L n aoF d gF L ob F ar F ur. T O
H f
eFtE ao . bscF ar md go. d T O
H i
FLrb F aL oaoe F aL n aIc. P ar F ur. at . uuFto. aw 7' UT
Dis co nnect th e c o nnecto r, a nd m easu re a t th e h arn ess
s id e.
Volt a ge b etw een 6 a nd e arth
( Ig nit io n s w it c h : O N)
O K: 4.5 ± 4 .9 V
Contin uit y b etw een 5 a nd e arth
O K: Contin uit y N
G C
heck th e in ta ke a ir te m pera tu re s e nso r. ( R efe r to P .1 3A -1 02.) N
G R
epla ce th e a ir flo w s e nso r.


    
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R ep air K
FgcL tF aoe F aoe . oocF ak L ck F at . uo . ccF T f
eFtEaoe Faoe . oocF ag .rno n. uar F ur. Ta Y K F7
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9
Rep la ce i
FLrb F aL oa oe . oocF ag .rno n. uar F ur. a t . u7
u Fto. aw 7N )T
Dis co nnect th e c o nnecto r, a nd
m easu re a t th e h arn ess s id e.
Volt a ge 1 a nd e arth
( Ig nit io n s w it c h : O N)
O K: 4.8 ± 5 .2 V
Contin uit y b etw een 3 a nd e arth
O K: Contin uit y N
G C
heck tr o uble s ym pto m . N
G C
heck th e h arn ess w ir e b etw een th e
t h ro ttle p osit io n s e nso r a nd th ro ttle
v a lv e c o ntr o lle r. O
K
NG C
heck tr o uble s ym pto m . N
G C
heck th e h arn ess w ir e b etw een th e
e ngin e-E C U a nd th ro ttle p osit io n s e n-
s o r. O
K A
dju st th e th ro ttle p osit io n s e nso r.
( R efe r to P .1 3A -9 2.) N
G
R ep air i
FLrb F aL oa oe . oocF ak L ck Fat . uo . ccF a t . u7
u Fto. af 7j zT
Connect th e c o nnecto r.
Dis co nnect th e th ro ttle v a lv e c o ntr o l
s e rv o c o nnecto r ( C lo se th e t h ro ttle
v a lv e fu lly b y fin ger).
Volt a ge b etw een 7 a nd e arth
( Ig nit io n s w it c h : O N)
O K: 0.1 ± 1 .1 V N
G C
heck tr o uble s ym pto m . N
G C
heck th e h arn ess w ir e b etw een th e
t h ro ttle v a lv e c o ntr o lle r a nd t h ro ttle
p osit io n s e nso r, a nd r e pair if n ece ssa ry . O
K R
epla ce th e th ro ttle v a lv e c o ntr o lle r. M
easu re a t e ngin e-E C U c o nnecto r
C -1 9.
Connect th e c o nnecto r.
Dis co nnect th e th ro ttle v a lv e c o ntr o l
s e rv o c o nnecto r ( C lo se th e t h ro ttle
v a lv e fu lly b y fin ger).
Volt a ge b etw een te rm in al 7 8 a nd
e arth
( Ig nit io n s w it c h : O N)
O K: 4.0 ± 4 .8 V