1996 TOYOTA RAV4 Engine

109
C 4 CENTER DIFF. LOCK CONTROL SW
7- 8 : CONTINUITY WITH CENTER DIFF. LOCK CONTROL SW AT LOCK POSITION
7-10 : CONTINUTIY WITH CENTER DIFF. LOCK CONTROL SW AT UNLOCK POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C 128F 831V 529
C 430J 131V 629
C 9A30J 331
C10B30J1031
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1E20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EA134ENGINE WIRE AND ENGINE ROOM MAIN WIRE (INSIDE OF R/B NO. 2)
IG238ENGINE WIRE AND INSTRUMENT PANEL WIRE (UNDER THE INSTRUMENT PANEL CENTER)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA34RADIATOR RIGHT
IG36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 538ENGINE WIRE
12XX
XX7 8 X103
13 2X
(
SEE PAGE 26)A A A A A
AAAA AAAB B
B
AAAAAA
CCC12 12 C 1
GRAYC 4
BLACK
F 8 J 1
BLUEJ 3
BLACK
V 6
BLUE V 5
BLUE J10
GRAYBBLUE C10ABROWN C 9
(
HINT : SEE PAGE 7)(
HINT : SEE PAGE 7) XX
SERVICE HINTS

11 3
CURRENT ALWAYS FLOWS TO TERMINAL 1 OF THE INTEGRATION RELAY THROUGH THE DOME FUSE.
1. SEAT BELT WARNING SYSTEM
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 7 OF THE INTEGRATION RELAY.
AT THE SAME TIME, CURRENT FLOWS TO TERMINAL 9 OF THE RELAY FROM THE GAUGE FUSE THROUGH THE SEAT BELT
WARNING LIGHT. THIS CURRENT ACTIVATES THE INTEGRATION RELAY AND THE CURRENT FLOWING THROUGH THE WARNING
LIGHT FLOWS FROM TERMINAL 9 OF THE RELAY " TERMINAL 10 " GROUND, CAUSING THE WARNING LIGHT TO LIGHT UP. A
BUCKLE SW OFF SIGNAL IS INPUT TO TERMINAL 8 OF THE RELAY, THE CURRENT FLOWING TO TERMINAL 7 OF THE RELAY FLOWS
FROM TERMINAL 10 " GROUND AND THE SEAT BELT WARNING BUZZER SOUNDS FOR APPROX. 4-8 SECONDS. HOWEVER, IF THE
SEAT BELT IS PUT ON DURING THIS PERIOD (WHILE THE BUZZER IS SOUNDING), SIGNAL INPUT TO TERMINAL 8 OF RELAY STOPS
AND THE CURRENT FLOW FROM TERMINAL 7 OF THE RELAY " TERMINAL 10 " GROUND IS CUT, CAUSING THE BUZZER TO STOP.
2. UNLOCK WARNING SYSTEM
WITH THE IGNITION KEY INSERTED IN THE KEY CYLINDER (UNLOCK SW ON), THE IGNITION SW STILL OFF AND DRIVER'S DOOR
OPEN (DOOR COURTESY SW ON), WHEN A SIGNAL IS INPUT TO TERMINAL 6 OF THE RELAY, THE INTEGRATION RELAY OPERATES,
CURRENT FLOWS FROM TERMINAL 7 OF THE RELAY " TERMINAL 10 " GROUND AND UNLOCK WARNING BUZZER SOUNDS.
B 6 BUCKLE SW LH
1-2 : CLOSED WITH DRIVER'S SEAT BELT IN USE
D 6 DOOR COURTESY SW (DRIVER'S SIDE)
1-GROUND : CLOSED WITH LH DOOR OPEN
U 1 UNLOCK WARNING SW
10-9 : CLOSED WITH IGNITION KEY IN CYLINDER
INTEGRATION RELAY
10-GROUND : ALWAYS CONTINUITY
6-GROUND : CONTINUITY WITH THE DRIVER'S DOOR OPEN
5-GROUND : CONTINUITY WITH IGNITION KEY IN CYLINDER
8-GROUND : CONTINUITY WITH THE DRIVER'S SEAT BELT IN USE
9-GROUND :0 VOLTS WITH THE IGNITION SW ON AND THE BUCKLE SW LH OFF
1-GROUND : ALWAYS APPROX. 12 VOLTS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
B 630D 632 (2-DOOR), 33 (4-DOOR)J11B31
C 9A30F 831U 131
C11B30J10A31
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
223R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20INSTRUMENT PANEL WIRE AND J/B NO 1 (LOWER FINISH PANEL)1D20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1E20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1H
1I20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1J
20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1L20FLOOR WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
ID36LEFT KICK PANEL
SYSTEM OUTLINE
SERVICE HINTS

11 9
THE SRS IS A DRIVER AND PASSENGER PROTECTION DEVICE WHICH HAS A SUPPLEMENTAL ROLE TO THE SEAT BELTS.
WHEN THE IGNITION SW IS TURNED TO ACC OR ON, CURRENT FROM THE CIG & RAD FUSE FLOWS TO TERMINAL 10 OF THE
AIRBAG SENSOR ASSEMBLY. ONLY WHEN THE IGNITION SW IS ON DOES THE CURRENT FROM THE IGN FUSE TO TERMINAL 9.
IF AN ACCIDENT OCCURS WHILE DRIVING, WHEN THE FRONTAL IMPACT EXCEEDS A SET LEVEL, CURRENT FROM THE CIG & RAD
OR IGN FUSE FLOWS TO TERMINALS 4 AND 2 OF THE AIRBAG SENSOR ASSEMBLY " TERMINAL 1 OF THE AIRBAG SQUIB "
TERMINAL 2 " TERMINALS 3 AND 1 OF THE AIRBAG SENSOR ASSEMBLY " TERMINAL 5 OR TERMINAL 6 OR BODY GROUND "
GROUND, SO THAT CURRENT FLOWS TO THE AIRBAG SQUIBS AND CAUSES IT TO OPERATE.
THE AIRBAG STORED INSIDE THE STEERING WHEEL PAD IS INSTANTANEOUSLY EXPANDED TO SOFTEN THE SHOCK TO THE
DRIVER.
THE AIRBAG STORED INSIDE THE PASSENGER'S INSTRUMENT PANEL IS INSTANTANEOUSLY EXPANDED TO SOFTEN THE SHOCK
TO THE PASSENGER.
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A1830C1130J 231
A1930D 128J 731
A2030F 831
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
IE20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
IM20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EA134ENGINE WIRE AND ENGINE ROOM MAIN WIRE (INSIDE OF R/B NO. 2)
IB136ENGINE ROOM MAIN WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
IG238ENGINE WIRE AND INSTRUMENT PANEL WIRE (UNDER THE INSTRUMENT PANEL CENTER)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EC34INTAKE MANIFOLD
ID36LEFT KICK PANEL
IE36INSTRUMENT PANEL BRACE LH
AB 12
34
5678910A18
YELLOW
12A19
YELLOW
12A20
YELLOW
4 3 XC11
GRAY
XX3
X5X
XX X11
XXX
XXX
X
X D 1
BL ACKF 8
(
SEE PAGE 26)A A A A A
AAAAAAAJ 2
BLUE
(
HINT : SEE PAGE 7)C C A A
AA CCJ 7
GRAY
(
HINT : SEE PAGE 7) B
BBB
SYSTEM OUTLINE

120
REAR WINDOW DEFOGGER
GAUGE
SE BLOCK]FROM POW ER SOURCE SYSTEM (
SEE PAG E 5 4)
BL2 1BL1 1BK2 1
IGBJ 5
R-L
R-L R-L
B-L W-B W-B
W-B B B B BB-L
R-L
IND O W
GER SWREAR WINDOW
DEFOGGER 38 3
A 1
B 1B R14 , R15
AP
OCK]B
TO DIO DE
(
ENGINE IDLE-UP)
B
OR J10
JUNCTION
CO NNECTOR
10A
[FU
4F 830A
DEF
1L 10 1H 5 1H 6DEFOGGER
RELAY 1
5 12
23
1E 11
5A
F-I/U
USE BL
B
8 8
9
C
C
REAR W
DEFOG R 5
1B 81I 4 1E 8
A
J10
JUNCTION
CONNECT
A
7.
DE
[F F
1E 10
1I 15

124
FRONT WIPER AND WASHER
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C1430F 628J1031
F 528F 831
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1F20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1I20INSTRUMENT PANEL WIRE AND J/B NO 1 (LOWER FINISH PANEL)1J20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB136ENGINE ROOM MAIN WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA34RADIATOR RIGHT
IG36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 134ENGINE ROOM MAIN WIRE

127
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS TO TERMINAL 2 OF THE REAR WASHER MOTOR, TERMINAL 3 OF THE
REAR WIPER RELAY AND TERMINAL 1 OF THE REAR WIPER MOTOR THROUGH THE WIPER FUSE.
1. REAR WIPER NORMAL OPERATION
WITH THE IGNITION SW TURNED ON AND REAR WIPER AND WASHER SW TURNED ON, THE CURRENT FLOWING TO TERMINAL 3
OF THE REAR WIPER RELAY FLOWS TO TERMINAL 6 OF THE RELAY "TERMINAL 10 OF THE REAR WIPER AND WASHER SW "
TERMINAL 2 "TOGROUND. THUS, THE RELAY COIL IS ACTIVATED AND THE CURRENT TO TERMINAL 3 OF THE RELAY FLOWS TO
TERMINAL 4 " TERMINAL 4 OF THE REAR WIPER MOTOR " MOTOR "TO GROUND AND CAUSES THE MOTOR TO OPERATE THE
WIPER.
2. REAR WIPER INTERMITTENT OPERATION
WHEN THE IGNITION SW IS ON AND THE REAR WIPER AND WASHER SW IS TURNED TO INT POSITION, CURRENT FLOWING TO
TERMINAL 3 OF THE REAR WIPER RELAY FLOWS TO TERMINAL 2 OF THE RELAY "TERMINAL 13 OF THE REAR WIPER AND
WASHER SW "TERMINAL 2 "GROUND.
THIS CAUSES THE MOTOR TO OPERATE (THE POINT CHANGES) AND THE INTERMITTENT CIRCUIT OF THE RELAY OPERATES.
INTERMITTENT OPERATION OF THE CIRCUIT IS CONTROLLED BY THE CHARGING AND DISCHARGING OF THE CONDENSER
INSTALLED INSIDE THE RELAY.
3. WASHER OPERATION
WITH THE IGNITION SW TURNED ON AND THE REAR WIPER AND WASHER SW TURNED TO ON POSITION, WHEN THE WIPER SW IS
TURNED FURTHER, THE CURRENT FLOWING TO TERMINAL 2 OF THE REAR WASHER MOTOR FLOWS TO TERMINAL 1 OF THE
MOTOR "TERMINAL 12 OF THE REAR WIPER AND WASHER SW "TERMINAL 2 "TO GROUND SO THAT THE WASHER MOTOR
ROTATES AND THE WINDOW WASHER EJECTS THE SPRAY, ONLY WHILE THE SWITCH IS FULLY TURNED.
WHEN THE WIPER SW IS OFF AND THEN TURNED TO WASHER ON (WIPER OFF SIDE), ONLY THE WASHER OPERATES.
R 2 REAR WASHER MOTOR
2-GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
1-GROUND : CONTINUITY WITH WASHER SW TURNED ON
R15 REAR WIPER RELAY
3-GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
2-GROUND : CONTINUITY WITH REAR WIPER SW INT POSITION
6-GROUND : CONTINUITY WITH REAR WIPER SW ON POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C1430J1029R1632 (2-DOOR), 33 (4-DOOR)
F 831R 229R1732 (2-DOOR), 33 (4-DOOR)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1F20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1I20INSTRUMENT PANEL WIRE AND J/B NO 1 (LOWER FINISH PANEL)1J20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1L20FLOOR WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
ID136FLOOR WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
BK140 (2-DOOR)BACK DOOR NO 1 WIRE AND FLOOR WIRE (BESIDE RIGHT REAR COMB LIGHT)BK142 (4-DOOR)BACK DOOR NO. 1 WIRE AND FLOOR WIRE (BESIDE RIGHT REAR COMB. LIGHT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IG36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 134ENGINE ROOM MAIN WIREB1042 (4-DOOR)BACK DOOR NO. 1 WIRE
B1040 (2-DOOR)BACK DOOR NO. 1 WIRE
SYSTEM OUTLINE
SERVICE HINTS

129
R 4 (A) RADIO AND PLAYER
(A) 4-GROUND : ALWAYS APPROX. 12 VOLTS
(A) 3-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ACC OR ON POSITION
(A) 7-GROUND : ALWAYS CONTINUITY
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
F 831R 3B31R13A32 (2-DOOR)
F 932 (2-DOOR), 33 (4-DOOR)R 4A31R13B33 (4-DOOR)
F1032 (2-DOOR), 33 (4-DOOR)R12A32 (2-DOOR)
J 331R12B33 (4-DOOR)
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
223R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1E20FUSE BLOCK ASSY WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1H
1I20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LOWER FINISH PANEL)
1J
()
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IC136FRONT DOOR LH WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
ID236FLOOR WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
II138FRONT DOOR RH AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
(
SEE PAGE 26)12 1212
3X 6 CCCDD D
12 34
567XX
12 1 2
12 1 2(
HINT : SEE PAGE 7) F 8 F 9
GRAYF10
GRAYJ 3
BLACK BR 3
A R13 (
2-DOOR)
B R13 (
4-DOOR)
A R12 (
2-DOOR)
B R12 (
4-DOOR)
A R 4
SERVICE HINTS

130
ELECTRONICALLY CONTROLLED TRANSMISSION
THIS SYSTEM ELECTRONICALLY CONTROLS THE GEAR SHIFT TIMING, LOCK-UP TIMING, THE CLUTCH AND BRAKE HYDRAULIC
PRESSURE, AND THE ENGINE TORQUE DURING SHIFTING TO ACHIEVE OPTIMUM SHIFT FEELING.
IN ACCORDING TO THE VEHICLE DRIVING CONDITIONS AND ENGINE OPERATING CONDITIONS AS DETECTED BY VARIOUS
SENSORS.
1. GEAR SHIFT OPERATION
DURING DRIVING, THE ENGINE CONTROL MODULE SELECTS THE SHIFT FOR EACH GEAR WHICH IS MOST APPROPRIATE TO THE
DRIVING CONDITIONS, BASED ON INPUT SIGNALS FROM THE ENGINE COOLANT TEMP. SENSOR TO TERMINAL THW OF THE
ENGINE CONTROL MODULE, AND ALSO THE INPUT SIGNALS TO TERMINAL SPD OF THE ENGINE CONTROL MODULE FROM THE
SPEEDOMETER DEVOTED TO THE ELECTRONICALLY CONTROLLED TRANSMISSION. CURRENT IS THEN OUTPUT TO THE
ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID. WHEN SHIFTING TO 1ST SPEED, CURRENT FLOWS FROM TERMINAL
S1 OF THE ENGINE CONTROL MODULE "TERMINAL
(A) 3 (2WD) OR (B) 3 (4WD) OF THE ELECTRONICALLY CONTROLLED
TRANSMISSION SOLENOID "GROUND, AND CONTINUES TO THE NO. 1 SOLENOID CAUSES THE SHIFT.
FOR 2ND SPEED, CURRENT FLOWS FROM TERMINAL S1 OF THE ENGINE CONTROL MODULE "TERMINAL 3 OF THE
ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID "GROUND, AND FROM TERMINAL S2 OF THE ENGINE CONTROL
MODULE "TERMINAL
(A) 1 (2WD) OR (B) 6 (4WD) OF THE ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID "
GROUND, AND CONTINUES TO SOLENOIDS NO. 1 AND NO. 2 CAUSES THE SHIFT.
FOR 3RD SPEED, THERE IS NO CONTINUOUS TO NO. 1 SOLENOID, ONLY TO NO. 2 CAUSING THE SHIFT.
SHIFTING INTO 4TH SPEED (OVERDRIVE) TAKES PLACE WHEN THERE IS NO CONTINUOUS TO EITHER NO. 1 OR NO. 2 SOLENOID.
2. LOCK-UP OPERATION
WHEN THE ENGINE CONTROL MODULE JUDGES FROM EACH SIGNAL THAT LOCK-UP OPERATION CONDITIONS HAVE BEEN MET,
CURRENT FLOWS FROM TERMINAL SL OF THE ENGINE CONTROL MODULE "TERMINAL
(A) 2 (2WD) OR (B) 5 (4WD) OF THE
ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID "GROUND, CONTINUES TO THE LOCK-UP SOLENOID AND CAUSING
LOCK-UP OPERATION.
3. STOP LIGHT SW CIRCUIT
IF THE BRAKE PEDAL IS DEPRESSED (STOP LIGHT SW ON) WHEN DRIVING IN LOCK-UP CONDITION, A SIGNAL IS INPUT TO
TERMINAL B/K OF THE ENGINE CONTROL MODULE, THE ENGINE CONTROL MODULE OPERATES AND CURRENT TO THE LOCK-UP
SOLENOID IS CUT.
4. OVERDRIVE CIRCUIT
*O/D MAIN SW ON
WHEN THE O/D MAIN SW IS TURNED ON (SW POINT IS OPEN), A SIGNAL IS INPUT TO TERMINAL OD2 OF THE ENGINE CONTROL
MODULE AND ENGINE CONTROL MODULE OPERATION CAUSES GEAR SHIFT WHEN THE CONDITIONS FOR OVERDRIVE ARE MET.
*O/D MAIN SW OFF
WHEN THE O/D MAIN SW IS TURNED OFF (SW POINT IS CLOSED), THE CURRENT FLOWING THROUGH THE O/D OFF INDICATOR
LIGHT FLOWS THROUGH THE O/D MAIN SW TO GROUND. CAUSING THE INDICATOR LIGHT TO LIGHT UP. AT THE SAME TIME, A
SIGNAL IS INPUT TO TERMINAL OD2 OF THE ENGINE CONTROL MODULE AND ENGINE CONTROL MODULE OPERATION
PREVENTS SHIFT INTO OVERDRIVE.
SYSTEM OUTLINE