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