automatic transmission MITSUBISHI MONTERO 1987 1.G Workshop Manual

18 INTRODUCTION - General Data and Specifications
Description L042G VNJLFIH VRJ L.F/H TNSLFIH TRSLFIH
1
Engine
Model No. G54B
G54B G54B G54B
Type i In-line OHC
In-line OHC In-line OHC In-line OHC
Number of cylinders ‘4 4
4 4
Bore 91 .I mm (3.59 in.) 91 .I mm (3.59 in.) 91 ,I mm (3.59 in.) 91 .I mm (3.59 in.)
Stroke 98.0 mm (3.86 in.) 98.0 mm (3.86 in.) 98.0 mm (3.86 in.) 98.0 mm (3.86 in.)
Piston displacement
2,555 cm” 2,555 cm” 2,555 cm3
2,555 cm3
(155.9 CID) (155.9 CID) (155.9 CID) (155.9 CID)
Compression ratio 8.7
8.7 8.7
8.7
Firing order
I-3-4-2 I-3-4-2 1-3-4-2
1-3-4-2
Basic ignitron trming
7” BTDC ? 2” 7” BTDC ? 2” 7” BTDC 2 2” ‘7” BTDC ? 2”
Transmission &transfer case
Model No.
KM145 KM148 KM145 KM148
Type 5-speed 4-speed 5-speed 4-speed
manual automatic manual automatic
Cear ratio
Transmjssion 1 st
3.967 2.826 3.967
2.826
2nd
2.136 1.493 2.136
1.493
3rd 1.360
1 .ooo 1.360
1.000
4th
1.000 0.688 1 .ooo
0.688
5th
0.856 - 0.856
-
Reverse 3.578
2.703 3.578
2.703
Transfer case High 1.000
1.000 1.000
1 ,040
Low 1.944
1.944 1.944
1.944
Final ring ratio
gear 4.625 4.625 4.625
4.625
Zlutch
Type Dry single
- Dry single
-
disc & disc &
diaphragm diaphragm
spring spring
Chassis
Tire size
Front suspension
P225/75R15
Type
Spring constant
(Wheel position)
Rear suspension
Type
Spring constant
At load of 1 ,OOO-2,500 N
(220-551 Ibs.)
At load of 4,670-8,870 N
(1,030-I ,955 tbs.) Wishbone compression type
22 N/mm (123 Ibs./in.)
Asymmetrical semi-elliptic leaf spring
22 N/mm (123 Ibs./in.)
50 N/mm (280 Ibs./in.)
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DIODE
ELECTRICAL SYSTEM PARTS LOCATION - Diode 8-5
Diode (for automatic transmission oil
Diode (for EGR warning light)
1 @NJ22
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8-20 WIRING HARNESS - How to Read Wiring Diagrams
HOW TO READ WIRING DIAGRAM NOEDBAE
HOW TO READ CONFIGURATION DIAGRAMS
(1) Connector symbols
A wiring diagram shows the installed condition of each connector in a schematic style. The connectors are
shown and classified as follows, depending on their locations and are marked by connector symbols.
In case connectors of the same shape (same number of wires) are centralized, their colors are indicated for
identification.
Examp’e : p.!- f.~~~~ ~;~~o,
Connector’s unique number (serial number)
A : Engine compartment
B : Interior and frame
C : Instrument panel
Main fusible link
A-03
A-o4
> 4WD indicator switch
A-05 Automatic transmission oil
I temperature switch indicates that the connector is located in the
Same connector No. is used in the wiring diagram and the circuit diagram.
I Indicates color of the
A-58 connector. I
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8-24 WIRING HARNESS - How to Read Wiring Diagrams
(7) Indication of shielded cables
A shielded cable used , for example, in an electronic control circuit for prevention of malfunctions that may
otherwise be caused by radio interference is indicated by a solid line sandwiched between dashed lines ( E).
(8) Indication of specification-dependent connectors
With regard to harness connectors, the inter-device and -harness connectors which vary in shape or position on
different vehicle specifications, such as those with rear wipers and turbocharger and those without turbo-
charger, are given a specification-dependent connector identification symbol (lower case alphabet) following the
connector symbol.
Example: A - Ola
Specification - dependent connector identification symbol
a : Vehicles with a manual transmission
b : Vehicles with an automatic transmission
c : Vehicles with a power window
d : Vehicles without a power window
(9) Shapes of connectors
The connector shapes are indicated by simplified symbolic marks. For distinction between male and female
connectors, refer to HOW TO IDENTIFY CONNECTORS.
Refer to Item (8)
The b at the end of the connector symbol
is a specification-dependent connector
identification
symbol and indicates that
the connector is used for vehicles with’
automatic transmission.
Headlight relay Ignition
switch I Dome light
B-68a B-68b STB Revision

8-28 WIRING HARNESS - Engine Compartment
1 ENGINE COMPARTMENT
Connector symbol
A
;:::I Main fusible link
;:::I 4WD indicator switch
A-05 Automatic transmission oil
temperature switch
A-06 Back-u light and 4WD indicator
A-07)wiring f!arness and cord
assembly combination
;:g> Back-up light switch
A-l 0 OD-OFF solenoid
A-l 1 Pulse generator
A-l 2 Front wiring harness and
transmission wiring harness
combination
A-13 Air conditioner solenoid valve
A-l 4 Front wiper motor A-
A156
A-55
A-l 7 Checker
A-18 Diode
A-19 Brake fluid level sensor
A-20 Front harness and back-up light
A-21 land 4WD indicator wiring
harness combination
it;;> Sub fusible link
A-24 Carburetor assembly
A-25 Control wiring harness and air
conditioner wiring harness
combination
A-26 Front wiring harness and control
wiring harness combination
A-27 Device box A-53 A-52
A-54
A-28 Auto choke relay
A-29 Front wiring harness and air
conditioner wiring harness
combination
A-30 Headlight washer motor
A-31 Front combination light (L.H.)
A-32 Light control relay
A-33 Dedicated fuse (Upper beam
indicator circuit)
A-34 Headlight (L.H.)
A-35 Condenser fan motor
A-40 Condenser fan motor relay
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WIRING HARNESS - Starting Circuit 8-35
(VEHICLES WITH AN AUTOMATIC TRANSMISSION)
Battery
-p Main
fusible
lrril ‘I
link
1.25-B A-02
-5-w
A-23 Sub fusible link
(IGN . SW) Ignition switch
U
Inhibitor
switch c-47
a 1 2-BY 2-BY,2-BY*2
I 1
a- 2-BY 2-BY 2-BY*l
1
N P
fTl BY BY
37W613
Remark
For information concerning the ground points (example: 0 ).
refer to P.8-7.
Wiring color code
8: Black Br: Brown G: Green Gr: Gray L: Blue Lg: Light green
LI: Light blue 0: Orange P: Pink R: Red Y: Yellow W: White ) STB Revision

WIRING HARNESS - Overdrive Control System Circuit 8-43
*I
Inhibitor switch
I Water OD-OFF relav 1 temperature r -63 C-
RL To back-up light
) [Refer to P.8-45.1 2-BY
t
To starter relay
[Refer to P.8-34, 35.1 IA-12 @@ 3
4
VRR
9 5
I t
L
1
r
A-05 -10
switch
[RILRI Automatic transmission
oil temperature switch
llR)3 OD-OFF
solenoid
Wiring color code
B: Black Br: Brown G: Green G;; ;ZJ L: Blue Lg: Light green
LI: Light blue 0: Orange P: Pink Y: Yellow W: White
37w019
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WIRING HARNESS Tail Light, Position Light, Rear Side Marker Light.
- License Plate Light and Back-Up Light Circuit 8-45
fl!FEEl
Column switch
I
Lighting
switch
Light control relay
F-GW -GW
B-l 2
B-l 1
Tail light
Rear
$ combination
light
(R.H.) Tail light
Back-up
light
‘El3 RG RI. G
Tail light
Rear
combination
fight
(L.H.) Tail light
Back-up
light
I GW
IBl Rear side
Remarks
B-22
(1) The broken lines are applicable to models equipped wrtn
an automatic transmission.
(2) For information concerning the ground points (exam-
37W023 , I
- ple: 0 ). refer to P.8-7.
(3) The symbols 0, 0, etc. indicate that the wiring is
connected (using the same numerical symbol) to the
facing page. -
(In other words, 0 on the right page is connected to 0 on
the left page.)
) STB Revision

WIRING HARNESS - Instrument Panel Wumination Circuit 8-51
11 INSTRUMENT PANEL ILLUMINATION CIRCUIT
Battery
Sub fusible link
5-w 0.5-G
5-w l-75-W m 2-R - L-
Main A-23
fusible link
@L
M’ CA
A A-22
Y$lO rx
c-l
Optical fiber
I
I
Multi-purpose
fuse
0
3
a control knob
illumination light
.ight contr
clay
& 01 BY
7t Combination
gauge
Illumination ligl
c-4o1l Shift-position
lmer control switch
C-38
4
Ashtray
illumination Cigaretty Hegpane _
lighter illumination ’ I
minagn light Clock
n+ 63 illumination light Combination meter
illumination light
37w '62; (1) The broken lines are applicable to models equipped with
an automatic transmission.
(2) For information concerning the ground points (exam-
ple: 0 ), refer to P.8-7.
Wiring color code
B: Black Br: Brown G: Green Gr: Gray
LI: Light blue 0: Orange P: Pink R: Red L: Blue
Y: Yellow Lg: Light green
W: White
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8-94 STARTING SYSTEM -Troubleshooting
TROUBLESHOOTING NOFH-
Symptom
Engine will not crank
Engine cranks slowly
Starter keeps running
Starter spins but en-
Jine will not crank Probable cause Remedy Reference
paw
Battery charge low Check battery specific gravity 8-81
,
I Charge or replace battery 8-82
Battery cables loose, corroded or worn Repair or replace cables 8-81
__~
Inhibitor Switch faulty Adjust or replace switch Refer to
(Vehicle with automatic transmission only) GROUP 21.
Fusible link blown
Replace fusible link 8-69
Starter motor faulty
Repair starter motor 8-97
Ignition switch faulty Replace ignition switch 8-l 22
Battery charge low Check battery specific gravity 8-8 1
Charge or replace battery 8-82
Battery cables loose, corroded or worn
Repair or replace cables 8-8 1
Starter motor faulty Repair starter motor 8-97
Starter motor faulty Repair starter motor 8-97
Ignition switch faulty
Replace ignition switch 8-l 22
I
Short in wiring
Repair wiring -
Pinion gear teeth broken or starter motor Repair starter motor 8-97
faulty
Ring gear teeth broken Replace flywheel ring gear or Refer to
torque converter GROUP 9.
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