1996 TOYOTA RAV4 oxygen

68
ENGINE CONTROL
I 4 IG 1 9
C 12
+BB 6
OX1B 5
OX2B 15
TE 1
B 2PIM
B 1VC
B 11VTA
B 3TH A
B 4TH W
B 7PTNK
B 9E2 B- R B- R B-O
BR
BR
Y
BR BR BR
B-R B-R
L-W B- R
BR LG-R
YY
L-R
Y-B
W
L- Y
BR BR
BR
B
B
BR
BR(
SHIELDED) (
SHIELDED)
A 5
G+ A 4
NE+A 17
NE -A 3
IG F
C 17ELS
B 10KNK
2
B B
(
SHIELDED)
(
SHIELDED)
MANIFOLD
ABSO LUTE
PRESSURE
SENSORTHROTTLE
POSITION
SENSOR
FROM TAI
RELAY (
L)
FR O M D EF
RELAY (
L)
CK
SO R ENGINE CONTROL MODULEB E 4 , E 5
AC, E 6
ENSOR
A 2 G-
A 1 G+ IGNITION COIL AND DISTRIBUTOR
I I 2 B1
B2
DISTRIBUTOR
B-O
BB-O
IG N ITIO N
COIL
A 20
IG T
R
G
R
B
L-Y (
SHIELDED)
BRB-O
1 2
1 2
OXYGEN SENSOR
(
BANK 1 SENSO R1)
OXYGEN SENSOR
(
BANK 1 SENSO R2) O 2
O 3
L
TO CRUISE
CONTROL ECU
V V
BR
B BBR
BR (
SHIELDED) (
SHIELDED)
I 5 I 5 I 5 I 4
DATA LINK CO NNECTOR 1 D 1
(
SHIELDED) (
SHIELDED)
B
TO A/C
AM PLIFIER
B-W
I 4W
G
I 5
B I 3 , I 4
A
IG2 8
1 2
CRANKSHAFT POSITION
SENSOR C 2
G
1 2
1 2
1 3 232
E2
Y
R
R
Y
L-Y
VCC PTNK1
G
BL-R
L Y
INTAKE AIR TEM P. SENSOR I 9
DIO
(
EN D 4
LLIG H T
OGGER
KNO
SEN K 1
ENGINE COOLANT TEMP. S E 2
IG 1 5
APOR PRESSURE SENSOR 1
I 5
8 12 3
TE 1+B E1
534
-C B TAC
IG T IG F
21 GNITER
3 1DE
GINE IDLE-UP)
1E2 VC PIM
M 11 432
T 1

164
J GROUND POINT
FRONT TURN SIGNAL
LIGHT LH AN D FRO NT
PARKING LIG HT LH
FRONT TURN SIGNAL
LIGHT RH AND FRONT
PARKING LIGHT RH
FRONT SIDE MARKER
LIGHT RH
FRONT SIDE MARKER
LIGHT LH
BRAKE FLUID LEVEL
WARNING SW
ST RELAY
E/G MAIN RELAY
FRON T W IPE R M O TO RVSV (
CENTER DIFF.
LOCK NO. 1)
VSV (
CENTER DIFF.
LOCK NO. 2)
E FI M A IN R E LA Y
FAN NO. 2 RELAY
FAN NO. 3 RELAY
ABS RELAY
ABS ACTUATOR
(
GND)
(
GND)
RADIATOR FAN MOTOR
DATA LINK
CONNECTOR 1
OXYGEN SENSOR
(
BANK 1 SENSOR 1)
OXYGEN SENSOR
(
BANK 1 SENSOR 2)
COMBINATION M ETER
HIGH MOUNTED STOP
LIGHT
BACK DOOR OPEN
DETECTION SW
REAR W INDOW
DEFOGGER (
-)
LICENSE PLATE
LIGHT A/C W ATER TEMP. SW
DATA LINK
CONNECTOR 3
NOISE FILTER
(
IG NITION SY STEM)
ENGINE
CONTROL
MODULE
ENGINE CONTROL
MODULE
REAR COMBINATION
LIGHT RH
REAR SIDE M ARKER
LIGHT RH
REAR COMBINATION
LIGHT LH
FUEL PUM P
REAR SIDE M ARKER
LIGHT LHEA110
I 5
EA EBE 1 A 2
26 6
6
W-B W-B
W-B
W-B
W-B W-B W-B W-B W-B W-B
W-B
W-B
W-B
W-B
W-B W-B
W-B
W-B
W-B
W-B W-B W-B W-B
W-B
W-B W-BABS ECU (
4W D M /T) (
4W D M /T)(
4W D M /T)
(
4W D M /T)
EC IG211
A BR
BR
BRBR
BR
BR
BR
IG 27
I 5 BR BR BR
BR BR BR BR (
E1)
(
EO1)
(
E02)
(
E03)
BH BI BJB10 B10
BL21 BK2 2
W-B W-B W-B W-B
W-B
W-BB W-B W-B
W-B W-B W-B W-B
W-B
W-B W-B
W-B
TIO N
NECTOR
JUNC TIO N
CONNECTOR J 2
A
A
A
A
A
A
AA
A
A
A
JUNC
CON J 1
A
A
AA
A
A

K OVERALL ELECTRICAL WIRING DIAGRAM
1
234
2 RAV4
ACC
IG1
IG2
ST2 AM1
6 7AM2
1H 14
21E 2
5566 21I 171B 1 8IG1
11 IB 1
2 1
5 3
2 1
5 31 2
1 2
1 2
1 2 3IG1
20 IB2 7EA1 11 IG1
1C 12A 11A 10A12 C A 8 B 22 A 23 A 6 B
2B 7B C C C C
14C13 21
1 2
1 2
B
B-R
R- W LG
B-OB R- Y Y- GL
L-Y
B-O
B-R B-RB-R B-R B-R
B-R
B-L B- Y R- WP B-W
B- R B- R
B- O B-Y
B-Y
B-R
B-R B-O B-O
B-Y
B-R
B-Y
B- RB-OB-R B-Y
B-R B-R B-R B-R
B- O
FC ELS ACT AC1 OD1 PTNK PIM17 15
21
20
2
80A MAIN
5566
4ID1
EA BH
L-B B-R
11 2
A A53
5 BB4A 17A C
L-WRG R
C
14 A A
16B A4BE1 EO2 EO3 IG F TH W
B 1BVTA VC
B
B
L- Y
B WL
L- R
Y
11 12 2
LG-RBR
BR BR
BR BR BR
BR
BR BR BRY
432 323
E2 E2
R-W
2EA1 I10
IG NIT IO N SW
I 5
IN JE C TO R NO . 1 I 7
IN JE C TO R NO . 3 I 6
IN JE C TO R NO . 2 I 8
IN JE C TO R NO . 4
R- W
9
5
11
I 1
IDLE AIR CONTROL VALVEV 9
VSV(
Vapor Pressure Sensor) V 8
VSV(
EVAP) V 7
VSV(
EG R) O 3
OXYGEN SENSOR(
Bank 1 Sensor 2)
2
BR
BATT # 10 # 20 +B ISCO ISCC TPC EVP EGR OX1 OX2
20A A M2E F I M A IN R EL AY
CIRCUIT OPENING RELAYF11
FUEL PU M P
Under the center
p illar L HR adiator right
From D iode(
Engine Idle-Up)
< 8- 2 <12-4
E 4 A , E 6 C
J 1
JUNCTION
CONNECTOR From A/C A mplifier
<20-4 To A/C Amplifier
<20-4 To Cruise Control ECU
<13-4
PTN K VCC PIM VCV 1
VAPOR PRESSURE SENSOR M 1
MANIFOLD ABSOLUTE PRESSURE SENSOR
16
F rom M alfunction Indicator
Lamp[Comb. M eter]< 18-2
From Igniter
<5-4
26 3
T 1
THROTTLE POSITION SENSOR
E 2
ENG INE COOLANT TEMP. SENSORI 9
INTAKE AIR TEM P. SENSOR
TE1 W N E+ N E- SD LE1
AB D 1
DATA LINK
CONNECTOR
1
ENGINE CONTROL MODULE
Power
SourceEngine Control
BATTERY
G-R
B-R G-R
, E 5 B
B- O
17
M 54
W-B
L-BW-B W-B
20 10 21C
G-W(
A/T)B/KFrom Stop Light SW
<9-34 22C
B-W(
A/T)NSWTo P ark /N eutral
Position SW<1-3C
To ST Relay< 1-3 B-W(
M/T)
STA
11
R-W F 8
7. 5A O B D
[FUSE BLOCK]
F 7
FUSIBLE LINK BLOCK G-R
IG 1 9
15
B-R
9BR
20B BKNK E2
B
A IG T
10
15A EFI16 2
171D 8
1E 9
100A ALT62 2
W
W
1F 8
1K 1
R-W
#30 25 A
#40 24 A2 1
1 2
5IG1
Y-B(
A/T)To Cruise C ontrol
E CU < 13- 3
BR
EC Intake manifold 11
TC
O 2
OXYGEN SENSOR(
Bank 1 Sensor 1)
Y
Y
1 THA
B 3
Y-BK 1
KNOCK SENSOR
EO1
13ABRBR BR
5A
G+ 10
F 8
7. 5A IG N
[FUSE BLOCK]B-O11
1E 1
1J 2B-O
W
IG Right kick panel
(
SH IE LD E D)
A A
AA
A
A
A
A
A
A
(SHIELDED)
(
SHIELDED)
AAB
AA
(
SHIELDED)54 216
IG 211
BR
BR
BR
BR
(
SHIELDED)
12
34567891011 12 13
14 15
16 17 18 19 20 21 22 2324 25 2612345678
9 1011121314151612
34567891011
12 13
14 15 16 17 18 19 20 2122
J10 A , J11 B
JUNCTIO N CONNECTOR
AAAAAA
BBBCCC B E 5 D AR K G RAY CE 6 DARK GRAY
B J11A J10
GRAY A E 4 DARK GRAY
ENGINE CONTROL MODULEJUNCTION CONNECTOR
J 2
JU NC T IO N
CONNECTOR
BR BR BR BRW-BW-B
SG CG SD L BAT
(
SHIELDED)
W WW-LBR BRL
W
D 2
DATA LINK CONNECTOR 3
GRAY
C SPD
To S peedometer[C omb. M eter]
<18-19V- W
B(
A/T)
To ST Relay< 1-3 C 2
CRANKSHAFT POSITION SEN SORFrom Ignition Coil
and D istributor< 5-3
2
1
G WW From C ruise C ontrol
ECU< 13-4
From Airbag Sensor
Assembly< 11-2
+B 12
B-R8TE1
From
Airbag
Sensor
Assembly
<11-2
W-L

SF0Q4−03
− SFISFI SYSTEM
SF−1
1996 RAV4 (RM447U)
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON THE FUEL SYSTEM, DISCON-
NECT THE NEGATIVE (−) TERMINAL CABLE FROM
THE BATTERY
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative (−) terminal cable is removed.
Therefore, if necessary, read the diagnosis before removing the
terminal.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON THE FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR LEATH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In event of engine misfire, these precautions should be
taken.
(1) Check proper connection to battery terminals, etc.
(2) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(3) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when handling oxygen sensor.
(1) Do not allow oxygen sensor to drop or hit against an
object.
(2) Do not allow the sensor to come into contact with
water.
5. IF VEHICLE IS EQUIPPED WITH MOBILE RADIO SYS-
TEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine to run out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will allow air suction and cause the engine to run out
of tune.
7. ELECTRONIC CONTROL SYSTEM
(a) Before removing SFI wiring connectors, terminals, etc.,
first disconnect the power by either turning the ignition
switch to LOCK or disconnecting the negative (−) terminal
cable from the battery.
HINT:
Always check the diagnostic trouble code before disconnecting
the negative (−) terminal cable from the battery.

SF1QB−01
SF−58
− SFIHEATED OXYGEN SENSOR
1996 RAV4 (RM447U)
HEATED OXYGEN SENSOR
COMPONENTS

− SFIHEATED OXYGEN SENSOR
SF−59
1996 RAV4 (RM447U)

SF1QC−01
SF−60
− SFIHEATED OXYGEN SENSOR
1996 RAV4 (RM447U)
INSPECTION
Bank 1 sensor 1, 2:
INSPECT OPERATION OF OXYGEN SENSOR (See page DI−42)