
90-1
GROUP 90
CIRCUIT DIAGRAMS
CONTENTS
HOW TO READ CIRCUIT MULTIPORT FUEL INJECTION (MFI)
DIAGRAMS . . . . . . . . . . . . . . . . . . . . 90-4 SYSTEM <2.4L ENGINE-M/T> . . . . . . 90-42
JUNCTION BLOCK . . . . . . . . . . . . . . 90-10 MULTIPORT FUEL INJECTION (MFI)
SYSTEM <2.4L ENGINE-A/T> . . . . . . 90-52
JOINT CONNECTOR . . . . . . . . . . . . . 90-12
MULTIPORT FUEL INJECTION (MFI)
CENTRALIZED JUNCTION . . . . . . . . 90-15 SYSTEM <3.8L ENGINE-M/T> . . . . . . 90-62
POWER DISTRIBUTION SYSTEM . . 90-22 MULTIPORT FUEL INJECTION (MFI)
SYSTEM <3.8L ENGINE-A/T> . . . . . . 90-72
STARTING SYSTEM . . . . . . . 90-28
COOLING SYSTEM <2.4L ENGINE>. 90-82
STARTING SYSTEM . . . . . . . . 90-29
COOLING SYSTEM <3.8L ENGINE>. 90-84
IGNITION SYSTEM
<2.4L ENGINE-M/T> . . . . . . . . . . . . . 90-30 INVECS-II 4A/T <2.4L ENGINE> . . . . 90-86
IGNITION SYSTEM INVECS-II 5A/T <3.8L ENGINE> . . . . 90-96
<2.4L ENGINE-A/T>. . . . . . . . . . . . . . 90-32
HEADLIGHT . . . . . . . . . . . . . . . . . . . . 90-106
IGNITION SYSTEM
<3.8L ENGINE-M/T> . . . . . . . . . . . . . 90-34 TAILLIGHT, POSITION LIGHT AND
LICENSE PLATE LIGHT . . . . . . . . . . 90-112
IGNITION SYSTEM
<3.8L ENGINE-A/T>. . . . . . . . . . . . . . 90-36 FOG LIGHT . . . . . . . . . . . . . . . . . . . . . 90-118
CHARGING SYSTEM FRONT DOME LIGHT, REAR DOME
<2.4L ENGINE> . . . . . . . . . . . . . . . . . 90-38 LIGHT, LUGGAGE COMPARTMENT
LIGHT AND IGNITION KEY HOLE
CHARGING SYSTEM ILLUMINATION LIGHT . . . . . . . . . . . . 90-124
<3.8L ENGINE> . . . . . . . . . . . . . . . . . 90-40
Continued on next page
90-2
GLOVE BOX LIGHT. . . . . . . . . . . . . . 90-132 WINDSHIELD WIPER AND WASHER
. . . . . . . . . . . . . . . . . . . . . . . . . . 90-226
VANITY MIRROR LIGHT . . . . . . . . . . 90-133
REAR WIPER AND WASHER 90-232
TURN-SIGNAL LIGHT AND
HAZARD WARNING LIGHT . . . . . . . 90-134 REAR WIPER AND WASHER . 90-240
BACKUP LIGHT . . . . . . . . . . . 90-142 REAR WINDOW DEFOGGER AND
DOOR MIRROR HEATER . . . . . . . . . 90-248
BACKUP LIGHT . . . . . . . . . . . 90-144
REMOTE CONTROLLED MIRROR . . 90-250
STOPLIGHT . . . . . . . . . . . . . . . . . . . . 90-146
AUTOMATIC ANTI-DAZZLING
HORN . . . . . . . . . . . . . . . . . . . . . . . . . 90-147 MIRROR . . . . . . . . . . . . . . . . . . . . . . . 90-252
METER AND GAUGE . . . . . . . 90-148 AUDIO SYSTEM . . . . . 90-254
METER AND GAUGE . . . . . . . 90-154
AUDIO SYSTEM . . . . . . . . . . . . . 90-258
OIL PRESSURE WARNING LIGHT,
FUEL WARNING LIGHT . . . . . 90-160 ACCESSORY SOCKET . . . . . . . . . . . 90-264
BRAKE WARNING LIGHT, MULTI -CENTER DISPLAY . . . . . . . . 90-266
OIL PRESSURE WARNING LIGHT,
FUEL WARNING LIGHT . . . . . 90-164 SUNROOF. . . . . . . . . . . . . . . . . . . . . . 90-270
POWER WINDOWS . . . . . . . . . . . . . . 90-168 AUTO-CRUISE CONTROL SYSTEM
<2.4L ENGINE-M/T> . . . . . . . . . . . . . . 90-274
CENTRAL DOOR LOCKING
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 90-176 AUTO-CRUISE CONTROL SYSTEM
<2.4L ENGINE-A/T> . . . . . . . . . . . . . . 90-282
MANUAL AIR CONDITIONING
SYSTEM <2.4L ENGINE> . . . . . . . . . 90-190 AUTO-CRUISE CONTROL SYSTEM
<3.8L ENGINE-M/T> . . . . . . . . . . . . . . 90-290
MANUAL AIR CONDITIONING
SYSTEM <3.8L ENGINE> . . . . . . . . . 90-200 AUTO-CRUISE CONTROL SYSTEM
<3.8L ENGINE-A/T> . . . . . . . . . . . . . . 90-298
AUTOMATIC AIR CONDITIONING
SYSTEM <3.8L ENGINE> . . . . . . . . . 90-210 ELECTRONIC BRAKE-FORCE
DISTRIBUTION (EBD) AND ANTI-LOCK
WINDSHIELD WIPER AND WASHER BRAKING SYSTEM (ABS)
. . . . . . . . . . . . . . . . . . . . . . . . . 90-220 . . . . . . . 90-306
Continued on next page
90-3
ELECTRONIC BRAKE-FORCE LIGHTING MONITOR TONE ALARM 90-362
DISTRIBUTION (EBD) AND
ANTI-LOCK BRAKING SYSTEM (ABS) IGNITION KEY REMINDER TONE
. . . . . . . 90-312
SEAT BELT WARNING TONE
ENGINE IMMOBILIZER SYSTEM ALARM . . . . . . . . . . . . . . . . . . . . . . . . 90-366
<2.4L ENGINE-M/T> . . . . . . . . . . . . . 90-318
DOOR AJAR WARNING TONE
ENGINE IMMOBILIZER SYSTEM ALARM . . . . . . . . . . . . . . . . . . 90-370
<2.4L ENGINE-A/T>. . . . . . . . . . . . . . 90-324
DOOR AJAR WARNING TONE
ENGINE IMMOBILIZER SYSTEM ALARM . . . . . . . . . . . . . . . . . . . 90-376
<3.8L ENGINE-M/T> . . . . . . . . . . . . . 90-330
CONTROLLER AREA NETWORK
ENGINE IMMOBILIZER SYSTEM (CAN) <2.4L ENGINE-M/T> . . . . . . . . 90-382
<3.8L ENGINE-A/T>. . . . . . . . . . . . . . 90-336
CONTROLLER AREA NETWORK
SUPPLEMENTAL RESTRAINT (CAN) <2.4L ENGINE-A/T> . . . . . . . . 90-390
SYSTEM (SRS) . . . . . . . . . . . . . . . . . 90-342
CONTROLLER AREA NETWORK
POWER SEAT . . . . . . . . . . . . . . . . . . 90-352 (CAN) <3.8L ENGINE-M/T> . . . . . . . . 90-400
HEATED SEAT . . . . . . . . . . . . . . . . . 90-354 CONTROLLER AREA NETWORK
(CAN) <3.8L ENGINE-A/T> . . . . . . . . 90-408
FORGOTTEN KEY PREVENTION
FUNCTION . . . . . . . . . . . . . . . . . . . . . 90-358
90-4 CIRCUIT DIAGRAMS
HOW TO READ CIRCUIT DIAGRAMS
HOW TO READ CIRCUIT DIAGRAMS
M1901000100793
The circuit of each system from the fuse (or fusible link) to ground is shown. The power supply is shown at
the top and the ground at the bottom to facilitate understanding of how the current flows. Some variations are
included in one circuit diagram.Accordingly, some diagrams may not be applicable for individual vehicles.
Indicates power source. Indicates connector number.
The same number is used in the
wiring harness diagram.
Connector and connector numbers Indicates the circuit name
Indicates that terminal is conne- are shown at the lower part of the to be connected. The arrow
cted via a plate in the relay box. page. indicates the current flow
Connector numbers not enclosed direction.
by frame indicate the device incor-
porated into wiring harness.
Each circuit diagram consists of
block(s).
Indicates splice point numbers.
These numbers are identical to
those described in "Splice Loca-
tions."
Indicates the circuit name to be
connected. The arrow indicates
the current flow direction.
Indicates the power supply in
the control unit. If no voltage is
displayed, this indicates battery
positive voltage.
An "X" at the end of a connector
number indicates that the conn-
ector is connected to a central-
ized junction that is shown in the
section "Centralized Junction."
Indicates that the diagram contin-
ues at which belongs to the
block in the same circuit.
Indicates the connector symbol.
Connectors in the circuit diagram
are indicated in numerical order.
Indicates the operating conditions Indicates shield wire. One-directional arrow indicate
of the engine coolant switch, etc. that current flows upwards.
AC106603AG
TSB Revision
CIRCUIT DIAGRAMS
HOW TO READ CIRCUIT DIAGRAMS
90-5
Indicates input/output Indicates a wiring connector which is inside
to/from control unit the equipment and which is not shown in
(current flow direction). the wiring harness configuration diagram.
Input Output Input/ Example C-15-2 Indicates a connector
output
which is inside the
equipment, numbered Indicates that the diagram comes
in order starting from 1. from which belongs to the
block in the same circuit.
Indicates the connector number shown in
the wiring harness configuration diagram.
Indicates terminal number.
In case two or more connectors
are connected to the same de-
vice, markings indicating
the same connector is
connected by a broken line.
Bi-directional arrow indicates
that current flows in both direc-
tions due to control by an ECU.
Indicates harness junction where
wire diameter or color changes.
Indicates intersections at
which the lead wires are
not connected.
Indicates intersections at
which the lead wires are
connected.
Indicates representative vehicle
body ground point. (Same
number as that of ground point in
GROUNDING LOCATION).
Indicates that the terminal is a
spare one if the device (sensor
in this case) is not provided.
AC106604AE
TSB Revision
90-6 CIRCUIT DIAGRAMS
HOW TO READ CIRCUIT DIAGRAMS
CONNECTOR/GROUNDING INDICATIONS
3
1 5
8
4
6
ACX02364 AC
7 2
TSB Revision
CIRCUIT DIAGRAMS
HOW TO READ CIRCUIT DIAGRAMS
90-7
ITEM NO. CONNECTOR/ GROUNDING SYMBOL CONTENTS
Connector 1 Male terminal The male and female terminals
and terminal Male connector are indicated as shown. The
marking connector with male terminal(s)
is called as male connector and
indicated by two connector
ACX01252AB
contour lines, while the
Male connector
connector with female
terminal(s) is called as female
connector and indicated by
Male terminal single connector contour line.
ACX01253 AB
ACX01251AB
Female terminal
Female connector
ACX01255AB
Female connector
Female terminal
ACX01256 AB
ACX01254 AB
Connector 2 Device The symbol indicates the
symbol connector is viewed as shown.
marking At a device connection, the
connector symbol on the device
side is shown. For an
ACX01253 intermediate connector, the
ACX01257AB male connector symbol is
shown. For spare connectors
Intermediate connector
and check connectors, no
device is connected, and so the
harness-side connector symbol
is shown for these connectors.
ACX01258AB
Spare connector, check connector
ACX01256
ACX01816 AB
TSB Revision
90-8 CIRCUIT DIAGRAMS
HOW TO READ CIRCUIT DIAGRAMS
ITEM NO. CONNECTOR/ GROUNDING SYMBOL CONTENTS
Connector 3 Direct connection type Connection between a device
connection and the harness is either by
marking direct insertion in the device
(direct connection type) or by
connection with a harness
connector furnished on the
ACX01261
ACX01260 AB device side (harness
connection type). The two types
4 Harness connection type are indicated as illustrated.
However, a data link connector
is exceptional.
ACX01263
ACX01262 AB
5 Intermediate connector
ACX01265
ACX01264AB
Ground 6 Body ground Grounding is either by body
marking ground, device ground or
control unit interior ground.
These are indicated as
illustrated.
ACX01274
ACX01273AB
7 Device ground
ACX01275 AB ACX01276
8 Ground in control unit
ACX01278
ACX01277AB
TSB Revision
CIRCUIT DIAGRAMS
HOW TO READ CIRCUIT DIAGRAMS
90-9
SYMBOLS (EXCEPT CONNECTOR AND GROUNDING)
Devices appearing in circuit diagrams are indicated by the following symbols.
Battery Buzzer Capacitor Electrolytic Variable Coil
capacitor capacitor
ACX02377AB ACX02378 AB ACX02379AB ACX02380 AB ACX02381 AB ACX02382 AB
Diode Light emitting Photo diode Zener diode Dual filament bulb Single filament
diode bulb
ACX02383 AB ACX02384 AB ACX02385 AB ACX02386 AB ACX02387AC ACX02388AC
Fuse Fusible link Horn Motor Pulse generator Piezoelectric
device
ACX02389AB ACX02390AB ACX02391AB ACX02392AB ACX02393 AB ACX02394 AB
Resistor Variable resistor Speaker Thermistor Transistor Photo transistor
ACX02395AB ACX02396AB ACX02397AB ACX02398 AB ACX02399AB ACX02400AB
WIRE COLOR CODES
Wire colors are identified by the following color codes.
CODE WIRE COLOR CODE WIRE COLOR CODE WIRE COLOR CODE WIRE COLOR
B Black L Blue R Red Y Yellow
BR Brown LG Light green SB Sky blue - -
G Green O Orange V Violet - -
GR Gray P Pink W White - -
If a cable has two colors, the first of the two color code charac-
Example: 1.25 G B
ters indicates the basic color (color of the cable coating) and
the second indicates the marking (tracer) color.
1 2 3 4
NO. MEANING
1 : Flexible wire
: Twisted wire
2 Wire size (mm2)*
ACX01279 AB
3 Basic color (color of the cable coating)
4 Marking color
NOTE:
*: No code indicates 0.5 mm2(0.0008 in2). Cable color code in
parentheses indicates 0.3 mm2 (0.0005 in2).
TSB Revision
90-10 CIRCUIT DIAGRAMS
JUNCTION BLOCK
JUNCTION BLOCK
M1901000201425
POWER
WINDOW
RELAY
FUEL
PUMP
RELAY (2)
FUEL
PUMP
RELAY (1)
REAR
WINDOW
DEFOG- BLOW-
GER ER
RELAY RELAY
HEATED SEAT ACCESSORY
RELAY SOCKET RELAY
NO
CONNECTION
NOTE
CONNECTOR NUMBERS ARE KEYED TO THE CONFIGURATION
DIAGRAM (DASH PANEL) AND EACH CIRCUIT DIAGRAM.
JUNCTION BLOCK SIDE
TSB Revision
CIRCUIT DIAGRAMS
JUNCTION BLOCK
90-11
FRONT VIEW REAR VIEW
TO TO
INSTRUMENT INSTRUMENT
PANEL WIRING PANEL WIRING
HARNESS HARNESS
ETACS-ECU
TO C-201 C-202
INSTRUMENT
PANEL WIRING
HARNESS
TO
INSTRUMENT C-204
C-216 C-203 POWER
PANEL WIRING WINDOW C-217
HARNESS RELAY
FUEL PUMP C-215
RELAY (1) BLOWER
RELAY
1 3
C-214 2 4 C-205 REAR
WINDOW
ACCESSORY 1 3 DEFOGGER
C-207 C-206
SOCKET RELAY
RELAY
2 4 C-213
1 3
C-212
FUEL PUMP 2 4
RELAY (2) FUSES
1 3
C-211
2 4
HEATED SEAT
RELAY
C-210
NO
CONNECTION C-208
C-209
TO TO
ROOF WIRING FLOOR WIRING
HARNESS HARNESS
AC407157AB
TSB Revision
90-12 CIRCUIT DIAGRAMS
JOINT CONNECTOR
JOINT CONNECTOR
M1901014201688
NOTE: IN THE ACTUAL VEHICLES, SOME OF THE JOINT CONNECTOR TERMINALS
IN THE SAME BUS ARE USED, SO IN SOME CASES, THE TERMINAL ARRANGEMENT
INDICATED ON THE CIRCUIT DIAGRAMS DOSE NOT COINSIDE WITH THE ONES IN
THE ACTUAL VEHICLES.
HOWEVER, ON JOINT CONNECTOR (3), THE ACTUAL TERMINAL AGREEMENT SHOULD ALWAYS
AGREE WITH THE CIRCUIT DIAGRAMS.
A/C
RADIATOR CONDENSER COMPRESSOR
FAN RELAY FAN RELAY RELAY FRONT-ECU