2000 MITSUBISHI MONTERO Service Repair Manual

GDI -Troubleshooting 13A-115
Terminal
No.Normal condition Check requirements (engine condition) Check item
94Accelerator pedal position
sensor (1st channel)Ignition switch:
ONRelease the acceler-
ator pedal.0.3 - 1.0 V*1
Depress the
accelerator pedal
fully.4.2 - 5.5 V*2
96Injector open circuit check
signalEngine: Increase engine speed from
idle speed to 4,000 r/min.Decreases slightly (approx.
0.7V) from 4.5 V - 5.0 V.
99Ignition switch - IGIgnition switch: ONSystem voltage
NOTE
Check if the difference in output between *1 and *2 is 4 V or more.
CHECK CHART FOR RESISTANCE AND CONTINUITY
BETWEEN TERMINALS
1. Turn the ignition switch to OFF.
2. Disconnect the engine-ECU connector.
3. Measure the resistance and check for continuity between
the terminals of the engine-ECU harness-side connector
while referring to the check chart.
NOTE
(1) When measuring resistance and checking continuity,
a harness for checking contact pin pressure should
be used instead of inserting a test probe.
(2) Checking need not be carried out in the order given
in the chart.
Caution
If the terminals that should be checked are mistaken,
or if connector terminals are not correctly shorted
to earth, damage may be caused to the vehicle wiring,
sensors, engine-ECU and/or ohmmeter.
Be careful to prevent this!
4. If the ohmmeter shows any deviation from the standard
value, check the corresponding sensor, actuator and
related electrical wiring, and then repair or replace.
5. After repair or replacement, recheck with the ohmmeter
to confirm that the repair or replacement has corrected
the problem.


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C
heck it e m S
ta ndard va lu e, norm al co ndit io n (c h eck re quir e -
m ents ) 5
-47 E
G R va lv e (D ) 1
5 -20 W (a t 20_C ) 6
-4
7 3
2 -47 E
G R va lv e (B ) 3
4 -47 E
G R va lv e (A ) 1
6 -47 P
urg e co ntr o lso le noid va lv e 3
6 -44 W (a t 20_C ) 4
4 -72 E
ngin e co ola nt te m pera tu re se nso r 5
.1 -6.5 kW (w hen engin e co ola nt te m pera tu re is
0 _C ) 2
.1 -2.7 kW (w hen engin e co ola nt te m pera tu re is
2 0_C ) 0
.9 -1.3 kW (w hen engin e co ola nt te m pera tu re is
4 0_C ) 0
.2 6 -0.3 6 kW (w hen engin e co ola nt te m pera tu re is
8 0_C ) 4
6 -B ody earth E
arth C
ontin uit y (0 W) 5
8 -B ody earth 6
2 -72 I
n ta ke air te m pera tu re se nso r 5
.3 -6.7 kW (w hen in ta ke air te m pera tu re is 0_C ) 2
.3 -3.0 kW (w hen in ta ke air te m pera tu re is 20_C ) 1
.0 -1.5 kW (w hen in ta ke air te m pera tu re is 40_C ) 0
.3 0 -0.4 2 kW (w hen in ta ke air te m pera tu re is 80_C ) 7
9 -49 A
cce le ra to r pedalp osit io n sw it c h C
ontin uit y (w hen th e acce le ra to r pedalis re le ase d) N
o co ntin uit y (w hen th e acce le ra to r pedal is slig htly
d epre sse d) 8
9 -47 O
xyg en se nso r heate r co ntr o l(fr o nt) 4
.5 -8.0 W (a t 20_C ) 9
0 -47 O
xyg en se nso r heate r (re ar) 4
.5 -8.0 W (a t 20_C )

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
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atte rn se le cto r D
is p la y E
ngin e r/m in I
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S
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atte rn heig ht L
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atte rn se le cto r D
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ngin e r/m in I
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V ) I
n je cto r
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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
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