window TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Workshop Manual
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Page 6 of 307

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6
HOW TO USE THIS MANUAL
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 3 OF THE POWER WINDOW MASTER SW, TERMINAL 2 OF THE POWER WINDOW CONTROL RELAY
AND TERMINAL 8 OF THE POWER WINDOW SW THROUGH THE DOOR FUSE.
1.DRIVER'S WINDOW ªMANUAL UPº OPERATION BY MASTER SW
HOLDING MANUAL SW (DRIVER'S) ON ªUPº POSITION LOCATED IN POWER WINDOW MASTER SW, THE CURRENT FLOWS TO TERMINAL 5 OF THE POWER WINDOW
CONTROL RELAY THROUGH TERMINAL 3 OF THE MASTER SW TERMINAL 2 TO OPERATE A POWER WINDOW CONTROL RELAY. THUS THE CURRENT INSIDE THE RELAY
FLOWS FROM TERMINAL 2 OF THE RELAY TERMINAL 1 TERMINAL 2 OF THE POWER WINDOW MOTOR TERMINAL 1 TERMINAL 4 OF THE RELAY TERMINAL
3 TO GROUND. THE MOTOR TURNS TO ASCENT THE WINDOW. RELEASING THIS SW, THE ROTATION OF MOTOR IS STOPPED AND THE WINDOWS CAN STOP AT WILL
POINT.
(FOR THE ªMANUAL DOWNº OPERATION, CURRENT FLOWS IN THE REVERSE DIRECTION BECAUSE THE TERMINALS WHERE IT FLOWS ARE CHANGED).
2.DRIVER'S WINDOW ªAUTO DOWNº OPERATION BY MASTER SW
ONCE THE ªAUTO DOWNº BUTTON OF THE MASTER SW IS PUSHED, THE CURRENT FLOWS TERMINAL 9 OF THE POWER WINDOW CONTROL RELAY THROUGH TERMINAL
3 OF THE MASTER SW TERMINALS 8 AND 9 TO OPERATE THE RELAY. THUS THE CURRENT INSIDE THE POWER WINDOW CONTROL RELAY FLOWS FROM TERMINAL
2 OF THE RELAY TERMINAL 4 TERMINAL 1 OF THE POWER WINDOW MOTOR TERMINAL 2 TERMINAL 1 OF THE RELAY TERMINAL 3 TO GROUND.
THE MOTOR CONTINUES THE ROTATION ENABLING TO DESCENT THE WINDOW.
THE WINDOW DESCENDS TO THE END POSITION. THE CURRENT WILL BE CUT OFF TO RELEASE THE AUTO DOWN FUNCTION BASED ON THE INCREASING CURRENT
BETWEEN TERMINAL 2 OF THE RELAY AND TERMINAL 1 IN RELAY.
3.DRIVER'S WINDOW AUTO DOWN RELEASE OPERATION BY MASTER SW
HOLDING THE MANUAL SW (DRIVER'S) ON ªUPº POSITION IN OPERATING AUTO DOWN. THE CURRENT FROM TERMINAL 3 OF THE MASTER SW PASSING TERMINAL 2
FLOWS TERMINAL 5 OF THE RELAY AND RELEASES THE AUTO DOWN FUNCTION IN THE POWER WINDOW CONTROL RELAY. RELEASING THE HAND FROM SW, WINDOW
STOPS AND CONTINUING ON TOUCHING SW, THE FUNCTION SWITCHES TO MANUAL UP OPERATION.
4.PASSENGER'S WINDOW UP OPERATION (MASTER SW) AND WINDOW LOCK SW OPERATION
HOLDING PASSENGER'S WINDOW SW (MASTER SW) ON ªUPº, THE CURRENT FLOWS FROM TERMINAL 3 OF THE MASTER SW PASSING TERMINAL 6 TO TERMINAL 3 OF
THE POWER WINDOW SW (PASSENGER'S) TERMINAL 4 TERMINAL 2 OF THE MOTOR TERMINAL 1 TERMINAL 9 OF THE POWER WINDOW SW TERMINAL
7 TERMINAL 1 OF THE MASTER SW TERMINAL 4 TO GROUND. THE MOTOR RUNS TO ASCENT THE WINDOW. RELEASING THIS SW, THE ROTATION OF MOTOR IS
STOPPED AND WINDOW CAN STOP AT WILL PLACE.
SWITCHING THE WINDOW LOCK SW IN ªLOCKº POSITION, THE CIRCUIT IS OPENED AND STOPPED THE MOTOR ROTATION.
(FOR THE DOWN OPERATION, CURRENT FLOWS IN THE REVERSE DIRECTION BECAUSE THE TERMINALS WHERE IT FLOWS ARE CHANGED).
P2 POWER WINDOW CONTROL RELAY
3±GROUND: ALWAYS CONTINUITY
2±GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
5±GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT UP POSITION
8±GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT AUTO DOWN POSITION
9±GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT DOWN OR AUTO DOWN POSITION
P 4 POWER WINDOW MASTER SW
4±GROUND: ALWAYS CONTINUITY
3±GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
WINDOW LOCK SW
OPEN WITH WINDOW LOCK SW AT LOCK POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
P221P421P621
P321P521
: RELAY BLOCKS
CODESEE PAGERELAY BLOCK (RELAY BLOCK LOCATION)
116R/B NO. 1 (INSTRUMENT PANEL LEFT SIDE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
3B14J/B NO. 3 AND COWL WIRE (INSTRUMENT PANEL LEFT SIDE)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
ID126FRONT DOOR RH WIRE AND COWL WIRE (RIGHT KICK PANEL)
IH126FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINT LOCATION
IC24COWL LEFT
: SPLICE POINTS
CODESEE PAGEWIRE HARNESSES WITH SPLICE POINTS
I524COWL WIRE
SYSTEM OUTLINE
SERVICE HINTS
Page 7 of 307

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Junction connector (code: J1, J2, J3, J4, J5,
J6, J7) in this manual include a short terminal
which is connected to a number of wire
harnesses. Always perform inspection with
the short terminal installed. (When installing
the wire harnesses, the harnesses can be
connected to any position within the short
terminal grouping.
Accordingly, in other vehicles, the same wire
harness from a different part.)
Wire harness sharing the same short terminal
grouping have the same color.HINT:
7
:Explains the system outline.
:Indicates values or explains the function for reference during troubleshooting.
:Indicates the reference page showing the position on the vehicle of the parts in the system circuit.
Example: Part ªP4º (Power Window Master SW) is on page 21 of the manual.
* The letter in the code is from the first letter of the part, and the number indicates its order
in parts starting with that letter.
Part is 4th in order
Power Window Master SW Example: P
4
:Indicates the reference page showing the position on the vehicle of Relay Block Connectors in the
system circuit.
Example: Connector ª1º is described on page 16 of this manual and is installed on the left side of the
instrument panel.
:Indicates the reference page showing the position on the vehicle of J/B and Wire Harness in the system
circuit.
Example: Connector ª3Bº connects the Cowl Wire and J/B No. 3. It is described on page 14 of this
manual, and is installed on the instrument panel left side.
:Indicates the reference page describing the wiring harness and wiring harness connector (the female
wiring harness is shown first, followed by the male wiring harness).
Example: Connector ªID1º connects the front door RH wire (female) and cowl wire (male). It is
described on page 26 of this manual, and is installed on the right side kick panel.
:Indicates the reference page showing the position of the ground points on the vehicle.
Example: Ground point ªICº is described on page 24 of this manual and is installed on the cowl left side.
:Indicates the reference page showing the position of the splice points on the vehicle.
Example: Splice point ªI 5º is on the Cowl Wire Harness and is described on page 24 of this manual.
Page 33 of 307

33
Position of Parts in Instrument Panel
G 3 Glove Box Light O 5 O/D Main SW and A/T Indicator Light (Shift Lever)
G 4 Glove Box Light SW
P 2 Parking Brake SW (for 1MZ±FE)
H 7 Hazard SW P 3 Parking Brake SW (for 5S±FE)
H 8 Heater Control SW (for Push Control SW Type) or Air P 4 Power Seat Control SW
Vent Mode Control SW (for Lever Control SW Type) P 5 Power Seat Motor (for Front Vertical Control)
H 9 Heated Oxygen Sensor (Bank 1 Sensor 2) P 6 Power Seat Motor (for Rear Vertical Control)
P 7 Power Seat Motor (for Reclining Control)
I 11 Ignition Key Cylinder Light P 8 Power Seat Motor (for Slide Control)
I 12 Ignition SW and Unlock Warning SW
I 13 Integration Relay R 2 Radio and Player (w/ CD Player)
R 3 Radio and Player (w/o CD Player)
J 1 Junction Connector R 4 Radio and Player (w/o CD Player)
J 2 Junction Connector R 5 Rear Window Defogger SW
J 3 Junction Connector R 6 Remote Control Mirror SW
J 4 Junction Connector (for SRS System) R 7 Rheostat
J 7 Junction Connector
S 5 Shift Lock ECU
K 3 Key Interlock Solenoid S 8 Stereo Component Amplifier
S 9 Stereo Component Amplifier
N 2 Noise Filter (for Stop Light) S 10 Stop Light SW
N 3 Noise Filter (for Stop Light)
Page 34 of 307
![TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Workshop Manual 34
ELECTRICAL WIRING ROUTING
Position of Parts in Body
[Sedan]
A 19 ABS Speed Sensor Rear LH L 3 Luggage Compartment Light
A 20 ABS Speed Sensor Rear RH L 4 Luggage Compartment Light SW
A 21 Auto Ante TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Workshop Manual 34
ELECTRICAL WIRING ROUTING
Position of Parts in Body
[Sedan]
A 19 ABS Speed Sensor Rear LH L 3 Luggage Compartment Light
A 20 ABS Speed Sensor Rear RH L 4 Luggage Compartment Light SW
A 21 Auto Ante](/img/14/6859/w960_6859-33.png)
34
ELECTRICAL WIRING ROUTING
Position of Parts in Body
[Sedan]
A 19 ABS Speed Sensor Rear LH L 3 Luggage Compartment Light
A 20 ABS Speed Sensor Rear RH L 4 Luggage Compartment Light SW
A 21 Auto Antenna Motor and Relay
M 2 Moon Roof Control Relay
D 10 Door Courtesy Light Front LH M 3 Moon Roof Control SW and Personal Light (w/ Moon
D 11 Door Courtesy Light Front RH Roof)
D 12 Door Courtesy SW Front LH M 4 Moon Roof Limit SW
D 13 Door Courtesy SW Front RH M 5 Moon Roof Motor
D 14 Door Courtesy SW Rear LH
D 15 Door Courtesy SW Rear RH P 9 Power Window Control SW Front RH
D 16 Door Key Cylinder Light and SW P 10 Power Window Control SW Rear LH
D 17 Door Key Lock and Unlock SW LH P 11 Power Window Control SW Rear RH
D 18 Door Key Lock and Unlock SW RH P 12 Power Window Master SW and Door Lock Control SW
D 19 Door Lock Control SW RH LH
D 20 Door Lock Motor and Door Unlock Detection SW Front P 13 Power Window Motor Front LH
LHP 14 Power Window Motor Front RH
D 21 Door Lock Motor and Door Unlock Detection SW Front P 15 Power Window Motor Rear LH
RHP 16 Power Window Motor Rear RH
D 22 Door Lock Motor Rear LH
D 23 Door Lock Motor Rear RH R 8 Rear Combination Light LH
R 9 Rear Combination Light LH
F 11 Front Door Speaker LH R 10 Rear Combination Light RH
F 12 Front Door Speaker RH R 11 Rear Combination Light RH
F 13 Front Tweeter (Speaker) LH R 12 Rear Speaker LH
F 14 Front Tweeter (Speaker) RH R 13 Rear Speaker RH
F 15 Fuel Pump and Sender R 16 Rear Window Defogger (+)
R 17 Rear Window Defogger (±)
H 10 High Mount Stop Light R 20 Remote Control Mirror LH
R 21 Remote Control Mirror RH
I 14 Interior Light
V 8 Vanity Light LH
L 1 License Plate Light V 9 Vanity Light RH
L 2 Light Failure Sensor
Page 35 of 307
![TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Workshop Manual 35
Position of Parts in Body
[Coupe]
A 19 ABS Speed Sensor Rear LH M 2 Moon Roof Control Relay
A 20 ABS Speed Sensor Rear RH M 3 Moon Roof Control SW and Personal Light
A 21 Auto Antenna Motor and Rel TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Workshop Manual 35
Position of Parts in Body
[Coupe]
A 19 ABS Speed Sensor Rear LH M 2 Moon Roof Control Relay
A 20 ABS Speed Sensor Rear RH M 3 Moon Roof Control SW and Personal Light
A 21 Auto Antenna Motor and Rel](/img/14/6859/w960_6859-34.png)
35
Position of Parts in Body
[Coupe]
A 19 ABS Speed Sensor Rear LH M 2 Moon Roof Control Relay
A 20 ABS Speed Sensor Rear RH M 3 Moon Roof Control SW and Personal Light
A 21 Auto Antenna Motor and Relay (w/ Moon Roof)
M 4 Moon Roof Limit SW
D 10 Door Courtesy Light Front LH M 5 Moon Roof Motor
D 11 Door Courtesy Light Front RH
D 12 Door Courtesy SW Front LH P 9 Power Window Control SW Front RH
D 13 Door Courtesy SW Front RH P 12 Power Window Master SW and Door Lock Control
D 16 Door Key Cylinder Light and SW SW LH
D 19 Door Lock Control SW RH P 13 Power Window Motor Front LH
D 26 Door Lock Motor, Door Unlock Detection SW P 14 Power Window Motor Front RH
Door Key Lock and Unlock SW LH
D 27 Door Lock Motor, Door Unlock Detection SW R 8 Rear Combination Light LH
Door Key Lock and Unlock SW RH R 9 Rear Combination Light LH
D 28 Door Lock Control SW LH (w/o Power Window) R 10 Rear Combination Light RH
R 11 Rear Combination Light RH
F 11 Front Door Speaker LH R 12 Rear Speaker LH
F 12 Front Door Speaker RH R 13 Rear Speaker RH
F 13 Front Tweeter (Speaker) LH R 16 Rear Window Defogger (+)
F 14 Front Tweeter (Speaker) RH R 17 Rear Window Defogger (±)
F 15 Fuel Pump and Sender R 20 Remote Control Mirror LH
R 21 Remote Control Mirror RH
H 10 High Mount Stop Light
T 2 Tension Reducer Solenoid LH
I 14 Interior Light T 3 Tension Reducer Solenoid RH
L 1 License Plate Light V 8 Vanity Light LH
L 2 Light Failure Sensor V 9 Vanity Light RH
L 3 Luggage Compartment Light
L 4 Luggage Compartment Light SW
Page 36 of 307
![TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Workshop Manual 36
ELECTRICAL WIRING DIAGRAM
Position of Parts in Body
[Wagon]
A 19 ABS Speed Sensor Rear LH F 13 Front Tweeter (Speaker) LH P 11 Power Window Control SW Rear
A 20 ABS Speed Sensor Rear RH F 14 Front TOYOTA CAMRY 1994 XV10 / 4.G Wiring Diagrams Workshop Manual 36
ELECTRICAL WIRING DIAGRAM
Position of Parts in Body
[Wagon]
A 19 ABS Speed Sensor Rear LH F 13 Front Tweeter (Speaker) LH P 11 Power Window Control SW Rear
A 20 ABS Speed Sensor Rear RH F 14 Front](/img/14/6859/w960_6859-35.png)
36
ELECTRICAL WIRING DIAGRAM
Position of Parts in Body
[Wagon]
A 19 ABS Speed Sensor Rear LH F 13 Front Tweeter (Speaker) LH P 11 Power Window Control SW Rear
A 20 ABS Speed Sensor Rear RH F 14 Front Tweeter (Speaker) RH RH
A 21 Auto Antenna Motor and Relay F 15 Fuel Pump and Sender P 12 Power Window Master SW and
Door Lock Control SW LH
D 10 Door Courtesy Light Front LH H 10 High Mount Stop Light P 13 Power Window Motor Front LH
D 11 Door Courtesy Light Front RH P 14 Power Window Motor Front RH
D 12 Door Courtesy SW Front LH I 14 Interior Light P 15 Power Window Motor Rear LH
D 13 Door Courtesy SW Front RH P 16 Power Window Motor Rear RH
D 14 Door Courtesy SW Rear LH L 1 License Plate Light
D 15 Door Courtesy SW Rear RH L 2 Light Failure Sensor R 8 Rear Combination Light LH
D 16 Door Key Cylinder Light and SW L 3 Luggage Compartment Light R 9 Rear Combination Light LH
D 17 Door Key Lock and Unlock SW LH L 4 Luggage Compartment Light SW R 10 Rear Combination Light RH
D 18 Door Key Lock and Unlock SW RH R 11 Rear Combination Light RH
D 19 Door Lock Control SW RH M 2 Moon Roof Control Relay R 12 Rear Speaker LH
D 20 Door Lock Motor and Door Unlock M 3 Moon Roof Control SW and R 13 Rear Speaker RH
Detection SW Front LH Personal Light (w/ Moon Roof) R 16 Rear Window Defogger (+)
D 21 Door Lock Motor and Door Unlock M 4 Moon Roof Limit SW R 17 Rear Window Defogger (±)
Detection SW Front RH M 5 Moon Roof Motor R 20 Remote Control Mirror LH
D 22 Door Lock Motor Rear LH R 21 Remote Control Mirror RH
D 23 Door Lock Motor Rear RH P 9 Power Window Control SW Front
RH V 8 Vanity Light LH
F 11 Front Door Speaker LH P 10 Power Window Control SW Rear V 9 Vanity Light RH
F 12 Front Door Speaker RH LH
Page 51 of 307

51
Connector Joining Wire Harness and Wire Harness
CODEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
BW1REAR DOOR LH WIRE AND FLOOR NO. 1 WIRE (LEFT CENTER PILLAR)
BX1FUEL GAUGE WIRE AND FLOOR NO. 1 WIRE (UNDER THE REAR SEAT CUSHION)
BY1REAR DOOR RH WIRE AND FLOOR NO. 2 WIRE (RIGHT CENTER PILLAR)
Bb1LUGGAGE ROOM NO. 1 WIRE AND FLOOR NO. 1 WIRE (LUGGAGE COMPARTMENT LEFT)
Bc1
Bc2BACK DOOR NO. 1 (WIRE AND FLOOR NO. 1 WIRE (LEFT QUARTER TRIM INNER)
Bc3
BACK DOOR NO. 1 (WIRE AND FLOOR NO. 1 WIRE (LEFT QUARTER TRIM INNER)
Bd1
Bd2BACK DOOR NO. 1 WIRE AND BACK DOOR NO. 2 WIRE (BACK DOOR LEFT)
Bd3
BACK DOOR NO. 1 WIRE AND BACK DOOR NO. 2 WIRE (BACK DOOR LEFT)
Be1REAR WINDOW NO. 1 WIRE AND BACK DOOR NO. 2 WIRE (BACK DOOR LEFT)
Page 59 of 307

59
11 8
180
186
22480
J5 J6 K3
120
124
144
148168 198130
138
168168120
124
182
192198
204
210
214236
Junction Connector (W/G)
Junction Connector (1MZ±FE)
Key Interlock Solenoid
License Plate Light
Light Failure Sensor
Luggage Compartment Light
Luggage Compartment Light SW
Moon Roof Control RelayMoon Roof Control SW and Personal
Light (w/ Moon Roof) (EX. W/G)Moon Roof Limit SW (EX. W/G)
Moon Roof Motor (EX. W/G)
Mass Air Flow (Air Flow Meter)
(1MZ±FE)
Noise Filter (for Ignition System)
Oil Pressure SW
O/D Main SW and A/T Indicator
Light (Shift Lever)
Park/Neutral Position SW
(Neutral Start SW) (A/T)
Parking Brake SW (for 1MZ±FE)
Parking Brake SW (for 5S±FE)
J7 L1 L2 L4L3 M2 M3 M5M4 M6 N1 N2 N3 O1 O5 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12
Junction Connector (1MZ±FE)
Noise Filter (for Stop Light)
Noise Filter (for Stop Light)
Power Seat Control SW
Power Seat Motor
(for Front Vertical Control)
Power Seat Motor
(for Rear Vertical Control)
Power Seat Motor
(for Slide control)
Power Seat Motor
(for Reclining Control)
Power Window Control SW Front
RH
Power Window Control SW Rear
LH (EX. C/P)
Power Window Control SW Rear
RH (EX. C/P)
Power Window Master SW and
Door Lock control SW LH
182 144130
134
138
140130
134
138
140168 80 80120
124
182
192198
204
210
214126
198
204 68
72
152
198
204236 236 180 180 180 180 180 156 156 156156
160
(4): R/B No. 4 (See page 20)(5): R/B No. 5 (See page 19)(6)R/B No. 6 (See Page )
2526 26
Page 60 of 307

60
POWER SOURCE (Current Flow Chart)
*Page Nos. of
Related Systems
Parts
Code or
Location
CB or Fuse
Location
156
* These are the page numbers of the first page on which the related system is shown.
The part indicated is located somewhere in the system, not necessarily on the page indicated here.
P13 P14 P15 P16 R1 R2 R3 R5 R6 R7 R8 R9156 156126
222
224
228
234126
190154120
124
Power Window Motor Front LH
Power Window Motor Front RH
Power Window Motor Rear LH
(EX. C/P)
Radiator Fan Motor (5S±FE)
Radio and Player (w/ CD Player)
Radio and Player (w/o CD Player)
Rear Window Defogger SW
Remote Control mirror SW
Rheostat
Stop Light LH
[Rear Comb. Light LH]
Taillight LH
[Rear Comb. Light LH]
Rear Turn Signal Light LH
[Rear Comb. Light LH]
Stop Light LH
[Rear Comb. Light LH]
40A AM1
15A CIG/RADIO
40A DEFOG
15A ECU±1G
10A GAUGE
7.5A IGN
10A MIR±HTR
30A POWER
7.5A SRS
15A STOP
15A TAIL
7.5A TURN
20A WIPER
30A AM2
7.5A ALT±S
30A CDS FAN
20A DOME
15A ECU±B
15A EFI
10A HAZ
15A HEAD (LWR±LH)
15A HEAD (LWR±RH)
15A HEAD (UPR±LH)
15A HEAD (UPR±RH)
15A HEAD LH
15A HEAD RH
10A HORN
40A MAIN
7.5A OBD
10A STARTER
10A A/C
40A HEATER
7.5A DRL
100A ALT
60A ABSR10 R11 R16 R17
Power Window Motor Rear RH
(EX. C/P)
Taillight LH
[Rear Comb. Light LH]
Back±up Light LH
[Rear Comb. Light LH]
Stop Light RH
[Rear Comb. Light RH]
Taillight RH
[Rear Comb. Light RH]
Rear Turn Signal Light RH
[Rear Comb. Light RH]
Taillight RH
[Rear Comb. Light RH]
Stop Light RH
[Rear Comb. Light RH]
Back±up Light RH
[Rear Comb. Light RH]
Rear Window Defogger (+)
(EX. W/G)
Rear Window Defogger (±)
(EX. W/G)
Rear Window Defogger (±)
(W/G)
156 242 126 126144
14811 4
148120
124144
148152120
124144
14811 4
11 8144
148120
124152 190 190 190
[LOCATION](1)
(7): J/B No. 1 (See page 20)
: R/B No. 7 (See page )(2)
(8): J/B No. 2 (See page 19)
: Fuse Box (F10, F17 See
on page )(3): R/B No. 1 (See page 23)
2022
25
27
28 29
Page 88 of 307

88
ENGINE CONTROL (5S±FE)
THIS SYSTEM UTILIZES AN ENGINE CONTROL MODULE (ENGINE ECU (M/T), ENGINE AND ELECTRONIC CONTROLLED
TRANSMISSION ECU (A/T)) AND MAINTAINS OVERALL CONTROL OF THE ENGINE, TRANSMISSION AND SO ON. AN OUTLINE OF THE
ENGINE CONTROL IS EXPLAINED HERE.
1. INPUT SIGNALS
(1) ENGINE COOLANT TEMP. (WATER TEMP.) SIGNAL SYSTEM
THE ENGINE COOLANT TEMP. SENSOR (EFI WATER TEMP. SENSOR) DETECTS THE ENGINE COOLANT TEMP. AND HAS A
BUILT±IN THERMISTOR WITH A RESISTANCE WHICH VARIES ACCORDING TO THE ENGINE COOLANT TEMP. (WATER TEMP.)
THUS THE ENGINE COOLANT TEMP. (WATER TEMP.) IS INPUT IN THE FORM OF A CONTROL SIGNAL TO TERMINAL THW OF
THE ENGINE CONTROL MODULE (ECU).
(2) INTAKE AIR TEMP. SIGNAL SYSTEM
THE INTAKE AIR TEMP. SENSOR (IN±AIR TEMP. SENSOR) IS DETECTS THE INTAKE AIR TEMP., WHICH IS INPUT AS A
CONTROL SIGNAL TO TERMINAL THA OF THE ENGINE CONTROL MODULE (ECU).
(3) OXYGEN SENSOR SIGNAL SYSTEM
THE OXYGEN DENSITY IN THE EXHAUST GASES IS DETECTED AND INPUT AS A CONTROL SIGNAL TO TERMINAL OX1 AND
OX2 OF THE ENGINE CONTROL MODULE (ECU).
(4) RPM SIGNAL SYSTEM
CRANKSHAFT POSITION AND ENGINE RPM ARE DETECTED BY THE PICK±UP COIL INSTALLED INSIDE THE DISTRIBUTOR.
CRANKSHAFT POSITION IS INPUT AS A CONTROL SIGNAL TO TERMINALS G+ AND G2 (CALIFORNIA), OF THE ENGINE
CONTROL MODULE (ECU), AND RPM IS INPUT TO TERMINAL NE+.
(5) THROTTLE SIGNAL SYSTEM
THE THROTTLE POSITION SENSOR DETECTS THE THROTTLE VALVE OPENING ANGLE, WHICH IS INPUT AS A CONTROL
SIGNAL TO TERMINAL VTA OF THE ENGINE CONTROL MODULE (ECU), OR WHEN THE VALVE IS FULLY CLOSED, TO
TERMINAL IDL
(6) VEHICLE SPEED SIGNAL SYSTEM
THE VEHICLE SPEED SENSOR (SPEED SENSOR), INSTALLED INSIDE THE COMBINATION METER, DETECTS THE VEHICLE
SPEED AND INPUTS A CONTROL SIGNAL TO TERMINAL SPD OF THE ENGINE CONTROL MODULE (ECU).
(7) PARK/NEUTRAL POSITION SW (NEUTRAL START SW) SIGNAL SYSTEM (A/T)
THE PARK/NEUTRAL POSITION SW (NEUTRAL START SW) DETECTS WHETHER THE SHIFT POSITION ARE IN NEUTRAL AND
PARKING OR NOT, AND INPUTS A CONTROL SIGNAL TO TERMINAL NSW OF THE ENGINE CONTROL MODULE (ECU).
(8) A/C SW SIGNAL SYSTEM
THE A/C AMPLIFIER INPUTS THE A/C OPERATIONS TO TARMINAL ACA OF THE ENGINE CONTROL MODULE (ECU) AS A
CONTROL SIGNAL.
(9) BATTERY SIGNAL CIRCUIT
VOLTAGE IS CONSTANTLY APPLIED TO TERMINAL BATT OF THE ENGINE CONTROL MODULE (ECU). WHEN THE IGNITION SW
TURNED ON, THE VOLTAGE FOR ENGINE CONTROL MODULE (ECU) START±UP POWER SUPPLY IS APPLIED TO TERMINALS
+B AND +B1 OF ENGINE CONTROL MODULE (ECU) VIA EFI MAIN RELAY. THE CURRENT FLOWING THROUGH THE IGN FUSE
FLOWS TO TERMINAL IGSW OF THE ENGINE CONTROL MODULE (ECU).
(10) INTAKE AIR VOLUME SIGNAL SYSTEM
INTAKE AIR VOLUME IS DETECTED BY THE MANIFOLD ABSOLUTE PRESSURE SENSOR (VACUUM SENSOR) (FOR MANIFOLD
PRESSURE) AND IS INPUT AS A CONTROL SIGNAL TO TERMINAL PIM OF THE ENGINE CONTROL MODULE (ECU).
(11) STA SIGNAL CIRCUIT
TO CONFIRM WHETHER THE ENGINE IS CRANKING, THE VOLTAGE APPLIED TO THE STARTER MOTOR DURING CRANKING IS
DETECTED AND THE SIGNAL IS INPUT INTO TERMINAL STA OF THE ENGINE CONTROL MODULE (ECU) AS A CONTROL
SIGNAL.
(12) ENGINE KNOCK SIGNAL CIRCUIT
ENGINE KNOCKING IS DETECTED BY KNOCK SENSOR AND THE SIGNAL IS INPUT INTO TERMINAL KNK AS A CONTROL
SIGNAL.
(13) ELECTRICAL LOAD SIGNAL SYSTEM
THE SIGNAL WHEN SYSTEMS SUCH AS THE REAR WINDOW DEFOGGER, HEADLIGHTS, ETC. WHICH CAUSE A HIGH
ELECTRICAL BURDEN ARE ON IS INPUT TO TERMINAL ELS AS A CONTROL SIGNAL.
SYSTEM OUTLINE