2000 MITSUBISHI MONTERO Service Repair Manual

AUTOMATIC TRANSMISSION -
Troubleshooting
23-92
TROUBLESHOOTING MECHANISMS>
DIAGNOSIS FUNCTION
Input signal check procedure
Connect the MUT-II
or a voltage meter to the diagnosis connector, and check the inhibitor switch (reverse)
input signal.
(Refer to GROUP 00 - Guide to Troubleshooting and Inspection Procedures.)
INSPECTION CHART CLASSIFIED BY TROUBLE SYMPTOMS
Trouble SymptomInspection
procedure
No.Reference
page
When the ignition switch is at a position other than the LOCK position, the selector lever
can be moved from the P to the R position even though the brake pedal is not depressed.123-92
When the ignition switch is at a position other than the LOCK position, the selector lever
cannot be moved from the P to the R position even though the brake pedal is being
depressed.223-92
The ignition switch is at the LOCK position, but the selector lever can be moved from the
P to the R position when the brake pedal is depressed.323-93
The selector lever cannot be easily moved from the P to the R position.423-93
The selector lever cannot be moved from the R to the P position.523-93
The ignition key cannot be turned to the LOCK position when the selector lever is at the P
position.623-93
The ignition key can be turned to the LOCK position even when the selector lever is at a
position other than the P position.723-93
INSPECTION PROCEDURES FOR TROUBLE SYMPTOM
Inspection procedure 1
When the ignition switch is at a position other than the
LOCK position, the selector lever can be moved from the
P to the R position even though the brake pedal is not
depressed.
Probable cause
The cause is probably a malfunction of the selector lever assembly lock cam or
of the shift lock cable unit.DMalfunction of lock cam
DMalfunction of shift lock cable unit
Check by referring to the probable causes.
Inspection procedure 2
When the ignition switch is at a position other than the
LOCK position, the selector lever cannot be moved from
the P to the R position even though the brake pedal is
being depressed.
Probable cause
The cause is probably a malfunction of the selector lever assembly, transmission
control cable, shift lock cable unit or the ignition key cylinder lock bar.DMalfunction of selector lever assembly
DMalfunction of transmission control cable
DMalfunction of shift lock cable unit
DMalfunction of lock bar
Check by referring to the probable causes.


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AUTOMATIC TRANSMISSION -Troubleshooting
23-93
Inspection procedure 3
The ignition switch is at the LOCK position, but the
selector lever can be moved from the P to the R position
when the brake pedal is depressed.
Probable cause
The cause is probably a malfunction of the shift lock cable unit or of the ignition
key cylinder lock bar.DMalfunction of shift lock cable unit
DMalfunction of lock bar
Check by referring to the probable causes.
Inspection procedure 4
The selector lever cannot be easily moved from the P to
the R position.
Probable cause
The cause is probably a malfunction of the selector lever assembly, transmission
control cable, shift lock cable unit or the ignition key cylinder lock bar.DMalfunction of selector lever assembly
DMalfunction of transmission control cable
DMalfunction of shift lock cable unit
DMalfunction of lock bar
Check by referring to the probable causes.
Inspection procedure 5
The selector lever cannot be moved from the R to the P
position.
Probable cause
The cause is probably a malfunction of the selector lever assembly or of the
transmission control cable.DMalfunction of selector lever assembly
DMalfunction of transmission control cable
Check by referring to the probable causes.
Inspection procedure 6
The ignition key cannot be turned to the LOCK position
when the selector lever is at the P position.
Probable cause
The cause is probably a malfunction of the selector lever assembly, shift lock
cable unit or the ignition key cylinder lock bar.DMalfunction of selector lever assembly
DMalfunction of shift lock cable unit
DMalfunction of lock bar
Check by referring to the probable causes.
Inspection procedure 7
The ignition key can be turned to the LOCK position even
when the selector lever is at a position other than the P
position.
Probable cause
The cause is probably a malfunction of the shift lock cable unit or of the ignition
key cylinder lock bar.DMalfunction of shift lock cable unit
DMalfunction of lock bar
Check by referring to the probable causes.


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O
N-V EH IC LE SER VIC E
B ASIC ADJU STM EN T PR O CED URES
A UTO M ATIC TR ANSM IS SIO N FLU ID (A TF) CHEC K
N O TE
W hen re pla cin g th e tr a nsm is sio n wit h anew one,o ve rh aulin g
t h e exis tin g tr a nsm is sio n, or driv in g in ahars h co ndit io n, th e
A T F co ole r lin e sh ould alw ays be flu sh ed outa nd AT F sh ould
b e re pla ce d wit h a new one.
1 . Driv e th e ve hic le until th e AT F te m pera tu re re ach es th e
n orm al te m pera tu re (7 0 -80
°C
).
N O TE
1 ) Measu re AT F te m pera tu re usin g MUT-I
I
.
2 ) Check th e oil le ve lre fe rrin g to th e ch ara cte ris tic s ch art
s h ow n atle ft if it ta ke s so m etim eto re ach th e norm al
o pera tio n te m pera tu re of AT F (7 0 -80
°C
.)
2 . Park th e ve hic le on ale ve l su rfa ce .
3 . Move th e se le cto r le ve r to all posit io ns to fu lly ch arg e
t h e to rq ue co nve rte r and th e flu id lin es wit h AT F, and
t h en move th e se le cto r le ve r to th e “N ” posit io n.
4 . Afte r w ip in g aw ay any dir t fr o m aro und th e oil le ve lg auge,
p ull out th e oil le ve l gauge and ch eck th e le ve l of AT F.
N O TE
I f th e AT F has a burn t sm ell, or if it has beco m e ve ry
c o nta m in ate d or dir ty , it m eans th at th e AT F has beco m e
c o nta m in ate d by min ute partic le s fr o m bush in gs (m eta l)
o r worn parts . In su ch a ca se , th e tr a nsm is sio n needs
t o be ove rh aule d and th e AT F co ole r lin e needs to be
f lu sh ed out.
5 . Check th at th e AT F le ve l is betw een th e “H O T” m ark s
o n th e oil le ve l gauge. If th e AT F le ve l is to o lo w , add
m ore AT F until th e le ve l re ach es betw een th e “H O T”
m ark s.
A uto m atic tr a n sm is sio n flu id :
D IA QUEEN ATF SP I
I
M,SP I
II
or eq uiv ale n t
N O TE
I f th e AT F le ve l is to o lo w , th e oil pum p dra w s air in to
t h e syste m alo ng wit h th e AT F, and air bubble s will th us
f o rm in th e flu id cir c u it . This will ca use a dro p in flu id
p re ssu re and ca use th e sh if t poin ts to ch ange and th e
c lu tc h es and bra ke s to slip .
I f th e AT F le ve l is to o hig h, th e gear will ch urn th e AT F
a nd ca use bubble s to deve lo p, whic h ca n th en ca use
t h e sa m e pro ble m s as when th e AT F flu id is to o lo w .
I n eit h er ca se , th e air bubble s ca n ca use ove rh eatin g
a nd oxid atio n of th e AT F, and als o pre ve nt th e va lv e s,
c lu tc h es and bra ke s fr o m opera tin g norm ally . In addit io n,
i f bubble s deve lo p in th e AT F, th e AT F ca n ove rflo w fr o m
t h e tr a nsm is sio n ve nt hole s and be mis ta ke n fo r le aks.
6 . Secu re ly re -in se rt th e oil le ve l gauge. 0
(
m m) -
3 0
40
-
2 0 -
1 0 1
0 T
e m pera tu re (
° C
) 6
0 2
0 O
il
l e ve l
-4 0
80

0
(
m m) -
3 0
40
-
2 0 -
1 0 1
0 T
e m pera tu re (
° C
) 6
0 2
0 O
il
l e ve l
-4 0
80

T
e rm in alN o. 1 2 3 7 8 9 1
0 P
R
N
D
P
R
N
D
3 2
L w
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C
ontin uit y 2
H ,4 H C
ontin uit y 4
H Lc, 4 LLc N
o co ntin uit y C
ontin uit y 2
H ,4LLc N
o co ntin uit y 4
H ,4H Lc C
ontin uit y S
ectio n A -A
B I
n hib it o r
s w it c h body M
anual co n-
t r o l le ve r
l o w er M
anual co ntr o l
l e ve r upper A
dju stin g nut M
anual co n-
t r o l le ve r
l o w er I
n hib it o r sw it c h
m ountin g bolt T
ra nsm is sio n co ntr o l
c a ble

C
ontin uit y 2
H ,4 H N
o co ntin uit y 4
H Lc, 4 LLc C
ontin uit y C
ontin uit y 2
H C
ontin uit y 4
H ,4H Lc, 4 LLc N
o co ntin uit y C
ontin uit y 4
LLc C
ontin uit y 2
H ,4 H ,4H Lc N
o co ntin uit y D
ra in plu g T
ra nsfe r oil w
ww.W ork sh opM an uals .c o .u k
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