MITSUBISHI MONTERO 2000 Service Repair Manual

AUTOMATIC TRANSMISSION -Troubleshooting <SS4
II>23-90
Ter-
minal
No.Check itemInspection conditionsStandard value
1Shift actuatorTransfer shift lever position: 2H®4H5.6 V®11.0 V®
5.6 V
3Shift actuatorTransfer shift lever position: 4H®2H5.6 V®11.0 V®
5.6 V
5Accelerator pedal positionAccelerator pedal: Fully closed (engine stopped)0.985 - 1.085 V
sensor (APS)Accelerator pedal: Fully open (engine stopped)4.0 V or higher
7Front propeller shaft speed
sensorMeasure the voltage between terminals 7 and 18 using
an oscilloscope.
Engine: 2 000 r/min
Shift range: 4thOscilloscope check
procedure (Refer to
P. 23-69 <Wave
Pattern B>.)
9Rear propeller shaft speed
sensorMeasure the voltage between terminals 9 and 18 using
an oscilloscope.
Engine: 2 000 r/min
Shift range: 4thOscilloscope check
procedure (Refer to
P. 23-69 <Wave
Pattern B>.)
11Diagnosis outputWhen normal (no diagnosis codes are output)0 V and 5 V alterna-
tes
13Power supplyIgnition switch: OFF0V
Ignition switch: ONSystem voltage
18Sensor earthAt all times0.5 V or less
20Transfer lever switch 2HTransfer shift lever position: 2HSystem voltage
Transfer shift lever position: Other than the above0V
21Transfer lever switch 4HTransfer shift lever position: 4HSystem voltage
Transfer shift lever position: Other than the above0V
22Transfer lever switch 4HLcTransfer shift lever position: 4HLcSystem voltage
Transfer shift lever position: Other than the above0V
23Transfer lever switch 4LLcTransfer shift lever position: 4LLcSystem voltage
Transfer shift lever position: Other than the above0V
24Diagnosis control––
25EarthAt all times0V
26EarthAt all times0V
31Backup power supplyAt all timesSystem voltage
32Inhibitor switch NSelector lever position: NSystem voltage
Selector lever position: Other than the above0V
33Inhibitor switch PSelector lever position: PSystem voltage
Selector lever position: Other than the above0V
34Stop lamp switchBrake pedal: DepressedSystem voltage
Brake pedal: Released0V
35EarthAt all times0V
37Rear wheel indicator lampOther than during transfer selectionSystem voltage
38Front wheel indicator lampDuring 4WDSystem voltage
39Earth <6G7>At all times0V


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AUTOMATIC TRANSMISSION -Troubleshooting <SS4
II>23-91
Ter-
minal
No.Standard value Inspection conditions Check item
40Center differential lock
lampDuring 4WD (4HLc or 4LLc)System voltage
41Solenoid valve A, BTransfer shift lever position: 2H1V
Transfer shift lever position: Other than 2HSystem voltage
42EarthAt all times0V
432WD switchTransfer shift lever position: 2H0V
Transfer shift lever position: Other than 2H10.5 V
442WD/4WD switchTransfer shift lever position: 2H or 4H0V
Transfer shift lever position: 4HLc or 4LLc10.5 V
454H switchTransfer shift lever position: 4H or 4HLc0V
Transfer shift lever position: 2H or 4LLc10.5 V
46Center differential lockTransfer shift lever position: 4HLc or 4LLc0V
switchTransfer shift lever position: 2H or 4H10.5 V
474HLc switchTransfer shift lever position: 4LLc0V
Transfer shift lever position: Other than 4LLc10.5 V
50Freewheel engage switchTransfer position: 2WD10.5 V
Transfer position: 4WD0V


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AUTOMATIC TRANSMISSION -
Troubleshooting
<Shift Lock and Key Interlock Mechanisms>23-92
TROUBLESHOOTING <SHIFT LOCK AND KEY INTERLOCK
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
<Shift Lock and Key Interlock Mechanisms>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
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

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
P urc h ased f r o m w ww.W ork sh opM an uals .c o .u k