1987 MITSUBISHI MONTERO Ignition diagram

8-1
ELECTRICAL
CONTENTS
NOBAA-
ACCESSORY ......................................................
188
Cigarette Lighter ............................................
,190
Clock ...............................................................
,191
AUDIO SYSTEM ................................................
.192
AUTOMATIC FREE-WHEELING HUB
INDICATOR SYSTEM ........................................
208
Automatic Free-wheeling Hub
Indicator Control Unit
..................................... ,216
Pulse Generator ..............................................
215
BACK DOOR WINDOW DEFOGGER
................ .203
Defogger switch ............................................
,206
Printed Heater Lines
...................................... ,207
CHARGING SYSTEM .........................................
71
Alternator ........................................................
83
Service Adjustment Procedures
..................... 77
Battery Charging ........................................
82
Inspection of Battery ..................................
81
Output Current Test ...................................
78
Regulated Voltage Test ..............................
79
Voltage Drop Test of Alternator Output
Wire ............................................................
77
ELECTRICAL SYSTEM PARTS LOCATION
...... 2
Diode ...............................................................
5
Fusible Link and Fuse
..................................... 6
Grounding .......................................................
7
Relay and Control Unit ....................................
2
Sensor .............................................................
4
HORN ..................................................................
184
Horn Switch
.................................................... 187
IGNITION SYSTEM ............................................
105
Ignition Switch
................................................ 122
Ignition System ...............................................
1 14
Service Adjustment Procedures
.................... .l 1 1
Checking Ignition System
..........................
11 1
Checking Ignition Timing
...........................
11 1
Spark Plug Cable Test
................................
1 12
Spark Plug Test
.......................................... 1 12 INSPECTION OF HARNESS CONNECTOR ...... 9
Check for Improper Engagement of
Terminal .......................................................... 9
Continuity and Voltage Test for Connector .... 9
Engaging and Disengaging of Connector
Terminal ..........................................................
9
LIGHTING SYSTEM ........................................... 143
Column Switch
................................ .
.............. .I59
Dimmer Control Switch
................................. .I62
Hazard Warning Switch
................................. .I61
Headlight ........................................................ ,158
Service Adjustment Procedures
.................... .I57
Headlight Aiming .......................................
157
METERS AND GAUGES .................................... 123
Service Adjustment Procedures
.................... .I30
Fuel Gauge Simple Test ................................. .I31
Fuel Gauge Unit Inspection ........................... .I31
Oil Pressure Gauge Simple Test
.................... .I32
Oil Pressure Gauge Unit Simple Test
............ ,132
Speedometer Inspection
............................... .I30
Tachometer Inspection .................................. ,130
Voltage Meter Simple Test
............................ .I33
Water Temperature Gauge Simple Test
....... ..I3 1
Water Temperature Gauge Unit Inspection
. ..I3 2
STARTING SYSTEM .......................................... 91
Starter Motor ............ ....................................... 97
WIPER AND WASHER SYSTEM
....................... .163
WIRING HARNESS ............................................ 13
Centralized Junction ....................................... 69
Circuit Diagram ............................................... 34
Configuration Diagram .................................... 27
How to Read Wiring Diagrams ....................... 20
Troubleshooting .............................................. 13

8-22 WIRING HARNESS - How to Read Wiring Diagrams
HOW TO READ CIRCUIT DIAGRAMS
The circuit diagrams are functionally separated.
(1) Indication of circuit connected to another circuit
When the circuit in a circuit diagram connected to another circuit in a different diagram, the page number of that
different diagram is indicated so that it can be referred to.
(2) Indication of device connections
The circuit diagram shows whether a device harness connection is one with an attached cable or is a direct
connection type.
(3) Indication of connectors in circuit diagrams
A connector in a circuit diagram is shown in a frame and is assigned a connector symbol. This symbol
corresponds to the symbol in a wiring harness configuration diagram so that the connector location can be
known easily. An intermediate connector has its female side only shown as a rule. However both of the male
and female sides are shown when they differ in wiring color.
Refer to Item (2)
If a frame showing a connector touches the
?. it indicates that the de-
a direct connec- symbol of a device
vice
harness connectlon IS
tion type.
Refer to Items (2) and (3).
The frame shows the connector is not touch- ing the symbol of a device, and indicates that
the device harness connection is one with an
attached cable.
Indicates direct grounding from
the device to the bodv.
Ignition switch
Dome light
/
17 /B-6& B-68b
(RG) - (RB)
RB-
(REV 1 I (GR)
L-2
B-35
1 *I RL - RL
I
**2-RL 1 Z-RL I
BI B ----- ---- --------
L ----_ __---___----
r------B-39
43 BRL *I
31103LI RL*2 _
Refer to Item (1)
Refer to item (3)
Indicates that this connector is a B-39 con-
nectar. On a circuit connected to another circuit the
names of devices to which the circuit is con-
nected and pages on which diagrams of such
another circuit appear are indicated.
1 STB Revision 1

WIRING HARNESS - HOW BO Read Wiring Diagrams 8-23
(4) Indication of fuses, fusible links and centralized relays
The fuses and fusible links in a circuit diagram are indicated by a wave symbol (-) and a double wave symbol
(~1, respectively. At a centralized junction, the fuses are given fuse numbers and centralized relays are given
connector symbols.
Example of centralized junction symbol: A - 01 x
Centralized junction indication symbol
Connector’s unique number (serial number)
Connector symbol
(5) Indication of ground point
The ground point in a circuit diagram is marked by a ground symbol, making it possible for you to refer to a
wiring harness configuration diagram and to ELECTRICAL SYSTEM PARTS LOCATION (Grounding).
(6) Indication of wires
In a circuit diagram, the wire diameter and wire color are shown for each wire. If there are several wires
of the same color in a connector, their wire color indication symbols should be such symbols as “I and
“2 for identification.
On connectors like this one given a central-
to CENTRALIZED JUNCTION for connector
1 shaoe. etc.
-I Headlight relay ignition switch
Dome light
I II I B-35 B-68b
P:8-47)
IEU
I ’ 2 I
RL
2-RL
0 III- BI B -----____________
L - - - - - _ _ _ _ _ __ _ _ _ _ _
B-39
Refer to Item (5).
Refer to Item (6)
The connector B-39 has two wires identical
in color (RL), so they are given identification
symbols *I and *2 in order to distinguish
them. 1 ST6 Revision

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

8-76 CHARGING SYSTEM - Circuit Diagram
3 CHARGING CIRCUIT
Battery Ignition switch
OFF
Main
m fusible ’ L
link
A-02
fl.3-Br 1~5~~
, A-23 Sub fusible link
(IGN . SW)
IAM IG ] c-55
3
3
A m
A
To turn signal flasher
unit [Refer to P.8-49.1 Multi-
n, Irnn4P
ComSeter
Remark
For information concerning the ground points (example:
q ),
refer to P.8-7. 37W605
Wiring color code
B: 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
1 STB Revision

STARTING SYSTEM - Circuit Diagram 8-95
1 STARTING CIRCUIT
(VEHICLES WITH A MANUAL TRANSMISSION)
11171 w
$in fusible
START
I k


9
OFF
ON ACC
ST
c-55
.I
m I BY
Sub fusible link Ignition switch
Starter
37W626 / STB Revision

8-96 STARTING SYSTEM - Circuit Diagram
(VEHICLES WITH AN AUTOMATIC TRANSMISSION)
I
Sub fusible link
A-23 (IGN . SW)
_ 5-WI-754 1
0.5-G 1, 1,
L-l m 1 L-W
Battery Ignition switch
c-47
2-BY-Z-BY*2
N P
!-BY Z-BY1 (Z-BY*]
L-l
R BY BY
“I “2
Remark
For information concerning the ground points (example:
q ),
refer to P.8-7.
Wiring color code
B: Black
Br: Brown
G: Green
Gr: Gray L: Blue
LI: Light blue
0: Orange P: Pink Lg: Light green
R: Red
Y: Yellow
W: White
STB Revision

8-110 IGNITION SYSTEM - Circuit Diagram
2 IGNITDN CIRCUIT
Sub fusible link
A-23
(IGN - SW) Ignition switch
5-wn5-w-
0.5-G 1
u
63- Z-W
I
IAT
Main 1
fusible
Rnttprv link
m
ze 3 cj _-’ A:“p m
N CL
I 64-b I I I m
I
Ei
I
L Disi
To combination meter d A-an b
(TACHO)
[Refer to P.8-52.1
I I Ignition coil
37 w009
Remaik
-‘For information concerning the ground points (example: q ),
refer to P.8-7.
Wiring color code’ c
B: Black Br: Brown G: Green Gr: Gray L: Blue Lg: Light green
LI: Light blue 0: Orange P: Pink R: Red Y: Yellow V/: White
1 STB Revision 1