TOYOTA RAV4 1996 Service Repair Manual

11 2
UNLOCK AND SEAT BELT WARNING
2
1 215A
DOM E AUGE
BLOCK]
L-Y L-B W-
R-W
UNLOCK
W ARNING
SW
OURTESY SW
S SIDE) U 1FROM POW ER SOURCE SYSTEM (
SEE PAGE 54)
W-
W-B
ID
R- L
41918
W-B
A 8
B 5B B
2 1
R-
BUCKLE SW
LH B 6
W-B
B C
A B
W-B
W-
JUNCTION
CONNECTORB J10 , J11
A
SEAT BELT
WARNING LIGHT
[C O M B . M E T E R ]B C 9 , C11
A
JUNCTION CONNECTORB J10 , J11A
R-L
A C
-B
R-L
10A G
[FUSE 3
F 8
1H 71D11L 51J 5
BUZZER INTE G R ATIO N R EL AY
B
71
10
56
1I 9
B
1E 8 1B 8 1H 12
9
1D 51H1
Y
8
BY
1
DOOR C
(
DRIVER' D 6

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 4
UNLOCK AND SEAT BELT WARNING

11 5
SRS
NOTICE: When inspecting or repairing the SRS, perform the operation in accordance with the following
precautionary instructions and the procedure and precautions in the Repair Manual for the applicable model
year.

Malfunction symptoms of the supplemental restraint system are difficult to confirm, so the diagnostic trouble
codes become the most important source of information when troubleshooting.
When troubleshooting the supplemental restraint system, always inspect the diagnostic trouble codes before
disconnecting the battery.

Work must be started after 90 seconds from the time the ignition SW is turned to the LOCKº position and the
negative (-) terminal cable is disconnected from the battery.
(The supplemental restraint system is equipped with a back-up power source so that if work is started within
90 seconds of disconnecting the negative (-) terminal cable of the battery, the SRS may be activated.)
When the negative (-) terminal cable is disconnected from the battery, the memory of the clock and audio
systems will be canceled. So before starting work, make a record of the contents memorized by each memory
system. When work is finished, reset the clock and audio system as before and adjust the clock.
To avoid erasing the memory of each memory system, never use a back-up power supply from outside the
vehicle.

When removing the steering wheel pad or handling a new steering wheel pad, keep the pad upper surface
facing upward. Also, lock the lock lever of the twin lock type connector at the rear of the pad and take care
not to damage the connector.
(Storing the pad with its metallic surface up may lead to a serious accident if the SRS inflates for some reason.)

Always store a removed or new front passenger airbag assembly with the airbag door facing up. Storing the
airbag assembly with the airbag door facing down could cause a serious accident if the airbag inflates.

Store the steering wheel pad where the ambient temperature remains below 935C (2005F), without high
humidity and away from electrical noise.

Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.

Never disassemble and repair the steering wheel pad, front passenger airbag assembly, airbag sensor
assembly.

Before repairing the body, remove the airbag sensor if during repair shocks are likely to be applied to the
sensors due to vibration of the body or direct tapping with tools or other parts.

Do not reuse a steering wheel pad or front airbag sensors.
After evaluating whether the center airbag sensor assembly is damaged or not, decide whether or not to reuse
it. (See the Repair Manual for the method for evaluating the center airbag sensor assembly.)

When troubleshooting the supplemental restraint system, use a high-impedance (Min. 10kW/V) tester.

The wire harness of the supplemental restraint system is integrated with the instrument panel wire harness
assembly.
The vehicle wiring harness exclusively for the airbag system is distinguished by corrugated yellow tubing, as
are the connectors.

Do not measure the resistance of the airbag squibs.
(It is possible this will deploy the airbag and is very dangerous.)

If the wire harness used in the supplemental restraint system is damaged, replace the whole wire harness
assembly.

INFORMATION LABELS (NOTICES) are attached to the periphery of the SRS components. Follow the
instructions on the notices.

11 6
SRS
The supplemental restraint system has connectors which possess the functions described below:
1. SRS ACTIVATION PREVENTION MECHANISM
Each connector contains a short spring plate. When the
connector is disconnected, the short spring plate
automatically connects the power source and grounding
terminals of the squib to preclude a potential difference
between the terminals.
2. ELECTRICAL CONNECTION CHECK MECHANISM
This mechanism is designed to electrically check if
connectors are connected correctly and completely.
The electrical connection check mechanism is designed so
that the disconnection detection pin connects with the
diagnosis terminals when the connector housing lock is in
the locked position.

11 7
3. CONNECTOR TWIN-LOCK MECHANISM
With this mechanism connectors (male and female
connectors) are locked by two locking devices to increase
connection reliability. If the primary lock is incomplete, ribs
interfere and prevent the secondary lock.

11 8
SRS
FROM POW ER SOURCE SYSTEM (
SEE PAGE 54)
IB1 17 IG218
EA1 3
11
GR
B-O
B-R W-G GR
B-O
W-L
W-L W-L
W-L
V W-L RNING LIGHT
METER]
CTOR J 7
IE IDEC
W-B
W-B
L
B
WR
BR BR
AIRBAG SQUIB
(
STEERING
W HEEL PAD) A20
AIRBAG SQUIB
(
FRONT PASSENGER' S
AIRBAG ASSEM BLY) A19DATA LINK
CONNECTO R 1
J 2
JUNCTIO N
CONNECTO
A 125
15A
CIG & RAD7. 5A
IG N7. 5A
SRS
71116 61015
FUSE
BLOCK F 8
1E 4
1M 21E 1
1M 31E 7
1M 4
4 3
W-G
SRS WA
[CO M B. C11
AAC
CBC
B JUNCTIO N CONNE
W-L
V W-B
W-B
12
SPIRAL
CABLE
TC A B
E
3 D 1
A
R
10 9 8 7
ACC IG2 LA TC
E1 E2 D+ D- P+ P-AIRBAG SENSOR ASSEMBLY A18
43 21 65

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

121
R 5 REAR WINDOW DEFOGGER SW
3-GROUND ; APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
8-5 : CLOSED WITH REAR WINDOW DEFOGGER SW AT ON POSITION
5-GROUND : ALWAYS CONTINUITY
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
F 831R 531R15B32 (2-DOOR), 33 (4-DOOR)
J1031R14A32 (2-DOOR), 33 (4-DOOR)
: 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)
1H20INSTRUMENT PANEL WIRE AND J/B NO 1 (LOWER FINISH PANEL)1I20INSTRUMENT 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)
BK240 (2-DOOR)BACK DOOR NO 1 WIRE AND FLOOR WIRE (BESIDE RIGHT REAR COMB LIGHT)BK242 (4-DOOR)BACK DOOR NO. 1 WIRE AND FLOOR WIRE (BESIDE RIGHT REAR COMB. LIGHT)
BL140 (2-DOOR)REAR WINDOW NO 1 WIRE AND BACK DOOR NO 1 WIRE (BACK DOOR RIGHT)BL142 (4-DOOR)REAR WINDOW NO. 1 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR RIGHT)
BL240-(2-DOOR)REAR WINDOW NO 1 WIRE AND BACK DOOR NO 1 WIRE (BACK DOOR LEFT)BL242 (4-DOOR)REAR WINDOW NO. 1 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR LEFT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IG36RIGHT KICK PANEL
BJ38 (2-DOOR)BACK DOOR LEFTBJ40 (4-DOOR)BACK DOOR LEFT
(
SEE PAGE 2 6)R 5
BLACK AR14
B R15 F 8
X3
X5 X811
AAAAAA
(
HINT : SEE PAGE 7) J10
GRAY
CCC
SERVICE HINTS