fog light TOYOTA RAV4 1996 Service Repair Manual

− DIAGNOSTICSENGINE
DI−13
1996 RAV4 (RM447U)
(b) TOYOTA Enhanced Signals
TOYOTA hand−held tester displayMeasurement ItemNormal Condition *
MISFIRE RPMEngine RPM for first misfire rangeMisfire 0: 0 RPM
MISFIRE LOADEngine load for first misfire rangeMisfire 0: 9 g/r
INJECTORFuel injection time for cylinder No.1Idling: 1.9 − 3.3 ms
IAC DUTY RATIOIntake Air Control Valve Duty Ratio Opening
ratio rotary solenoid type IAC valveIdling: 25 − 60 %
STARTER SIGStarter SignalCranking: ON
A/C SIGA/C Switch SignalA/C ON: ON
PNP SWPark / Neutral Position Switch SignalP or N position: ON
ELCTRCL LOAD SIGElectrical Load SignalDefogger S/W ON: ON
STOP LIGHT SWStop Light Switch SignalStop light switch ON: ON
FC IDLFuel Cut Idle: Fuel cut when throttle valve fully
closed, during decelerationFuel cut operating: ON
FC TAUFuel Cut TAU: Fuel cut during very light loadFuel cut operating: ON
CYL#1
CYL#2
CYL#3
CYL#4
Abnormal revolution variation for each cylinder0 %
IGNITIONTotal number of ignitions for every 1,000
revolutions0 − 2,000
EGR SYSTEMEGR system operating conditionIdling: OFF
FUEL PUMPFuel Pump SignalIdling: ON
EVAP (PURGE) VSVEVAP VSV SignalVSV operating: ON
VAPOR PRESS VSVVapor Pressure VSV SignalVSV operating: ON
A/C CUT SIGA/C Cut SignalA/C S/W OFF: ON
TOTAL FT B1Total Fuel Trim Bank 1: Average value for fuel
trim system of bank 1Idling: 0.8 − 1.2
O2 LR B1, S1
Oxygen Sensor Lean Rich Bank 1, Sensor 1
Response time for oxygen sensor output to
switch from lean to rich.
Idling after warned up: 0 − 1,000 msec.
O2 RL B1, S1
Oxygen Sensor Rich Lean Bank 1, Sensor 1
Response time for oxygen sensor output to
switch from rich to lean.
Idling after warned up: 0 − 1,000 msec.
*: If conditions are specifically stated for ”Idling” , it means the shift lever is at N or P Position, the A/C switch
is OFF and all accessory switches are OFF.

− DIAGNOSTICSENGINE
DI−19
1996 RAV4 (RM447U) FC (E6−14) − E1 (E4−14)
G−R ↔ BRIG switch ON9 ∼ 14
EGR (E4−23) − E1 (E4−14)B−W ↔ BRIG switch ON0 ∼ 3
ISCC (E4−9) − E1 (E4−14)B−Y ↔ BRIG switch ON
Disconnect E4 of ECM connector9 ∼ 14
ISCO (E4−10) − E1 (E4−14)B−L ↔ BRIG switch ON
Disconnect E4 of ECM connector9 ∼ 14
OX1 (E5−6) − E1 (E4−14)B ↔ BRMaintain engine speed at 2,500 rpm for 2 mins. after
warning up.Pulse generation
OX2 (E5−5) − E1 (E4−14)B ↔ BRMaintain engine speed at 2,500 rpm for 2 mins. after
warning up.Pulse generation
KNK (E5−10) − E1 (E4−14)B ↔ BRIdlingPulse generation
(See page DI−56)
* NSW (E6−22) − E1 (E4−14)B−W ↔ BR
IG switch ON
Other shift position in ”P” , ”N” position9 ∼ 14
IG switch ON
Shift position in ”P” , ”N” position0 ∼ 3.0
SPD (E6−9) − E1 (E4−14)V−W ↔ BRIG switch ON
Rotate driver wheel slowly.Pulse generation
(See page DI−94)
TE1 (E5−15) − E1 (E4−14)L−W ↔ BRIG switch ON9 ∼ 14
W (E6−5) − E1 (E4−14)G−R ↔ BRIdling9 ∼ 14
IG switch ONBelow 3.0
AC (E6−10) − E1 (E4−14)Y−G ↔ BRIdling, A/C switch ONBelow 2.0
Idling, A/C switch OFF9 ∼ 14
ACT (E6−21) − E1 (E4−14)R−Y ↔ BRIdling, A/C switch ON9 ∼ 14
Idling, A/C switch OFFBelow 2.0
* OD2 (E6−7) − E1 (E4−14)LG ↔ BRIG switch ON, O/D main switch pushed out9 ∼ 14
IG switch ON, O/D main switch pushed in0 ∼ 3
* OD1 (E6−20) − E1 (E4−14)Y−B ↔ BRIG switch ON, Cruise control ECU no request O/D cut9 ∼ 14
IG switch ON, Cruise control ECU request O/D cut0 ∼ 3
EVP (E4−22) − E1 (E4−14)P ↔ BRIG switch ON9 ∼ 14
TPC (E5−8) − E1 (E4−14)R−W ↔ BRIG switch ON9 ∼ 14
PTNK (E5−7) − E2 (E5−9)L−Y ↔ BR
IG switch ON, Disconnect vacuum hose from vapor
pressure sensor2.9 ∼ 3.7
Apply vacuum
(4.0 kPa, 30 mmHg, 1.18 in. Hg)
(less than 66.7 kPa, 500 mmHg, 19.7 in. Hg)
Below 0.5
ELS (E6−17) − E1 (E4−14)B ↔ BRDefogger switch and taillight switch ON7.5 ∼ 14
Defogger switch and taillight switch OFF0 ∼ 1.5
SDL (E6−16) − E1 (E4−14)W ↔ BRDuring transmissionPules generation
*: A/T only

31
G
Position of Parts in Instrument Panel
E 3 Electronically Controlled Transmission Pattern J 9 Junction Connector
Select SW J 10 Junction Connector
E 4 Engine Control Module J 11 Junction Connector
E 5 Engine Control Module
E 6 Engine Control Module K 2 Key Interlock Solenoid
F 8 Fuse Block O 4 O/D Main SW
H 4 Hazard SW P 2 Parking Brake SW
I 10 Ignition SW R 3 Radio and Player
R 4 Radio and Player
J 1 Junction Connector R 5 Rear Window Defogger SW
J 2 Junction Connector R 6 Remote Control Mirror SW
J 3 Junction Connector R 7 Rheostat
J 4 Junction Connector
J 5 Junction Connector S 4 Shift Lock ECU
J 6 Junction Connector S 5 Stop Light SW
J 7 Junction Connector
J 8 Junction Connector U 1 Unlock Warning SW

32
G ELECTRICAL WIRING ROUTING
Position of Parts in Body
[2-Door]
A 21 ABS Speed Sensor Rear LH L 1 License Plate Light
A 22 ABS Speed Sensor Rear RH
P 3 Personal Light
B 7 Back Door Open Detection SW and Door Lock P 4 Power Window Master SW
Motor P 5 Power Window Motor (Driver's Side)
P 6 Power Window Motor (Front Passenger's Side)
D 6 Door Courtesy SW (Driver's Side) P 9 Power Window SW (Front Passenger's Side)
D 7 Door Courtesy SW (Front Passenger's Side)
D 10 Door Lock Control SW (Front Passenger's Side) R 8 Rear Combination Light LH
D 13 Door Lock Motor, Door Key Lock and Unlock SW R 9 Rear Combination Light RH
(Driver's Side) R 10Rear Side Marker Light LH
D 14 Door Lock Motor, Door Key Lock and Unlock SW R 11 Rear Side Marker Light RH
(Front Passenger's Side) R 12 Rear Speaker LH
R 13 Rear Speaker RH
F 9 Front Speaker LH R 14 Rear Window Defogger (+)
F 10 Front Speaker RH R 15 Rear Window Defogger (-)
F 11 Fuel Sender (Main) and Fuel Pump R 16 Rear Wiper Motor
F 12 Fuel Sender (Sub) R 17 Rear Wiper Relay
R 18 Remote Control Mirror LH
H 5 High Mounted Stop Light R 19 Remote Control Mirror RH
I 11 Interior Light

33
G
Position of Parts in Body
[4-Door]
A 21 ABS Speed Sensor Rear LH L 1 License Plate Light
A 22 ABS Speed Sensor Rear RH
P 3 Personal Light
B 7 Back Door Open Detection SW and Door Lock P 4 Power Window Master SW
Motor P 5 Power Window Motor (Driver's Side)
P 6 Power Window Motor (Front Passengerºs Side)
D 6 Door Courtesy SW (Driver's Side) P 7 Power Window Motor (Rear LH)
D 7 Door Courtesy SW (Front Passenger's Side) P 8 Power Window Motor (Rear RH)
D 8 Door Courtesy SW (Rear LH) P 9 Power Window SW (Front Passenger's Side)
D 9 Door Courtesy SW (Rear RH) P 10 Power Window SW (Rear LH)
D 10 Door Lock Control SW (Front Passenger's Side) P 11 Power Window SW (Rear RH)
D 11 Door Lock Motor (Rear LH)
D 12 Door Lock Motor (Rear RH) R 8 Rear Combination Light LH
D 13 Door Lock Motor, Door Key Lock and Unlock SW R 9 Rear Combination Light RH
(Driver's Side) R 10Rear Side Marker Light LH
D 14 Door Lock Motor, Door Key Lock and Unlock SW R 11 Rear Side Marker Light RH
(Front Passenger's Side) R 12 Rear Speaker LH
R 13 Rear Speaker RH
F 9 Front Speaker LH R 14 Rear Window Defogger (+)
F 10 Front Speaker RH R 15 Rear Window Defogger (-)
F 11 Fuel Sender (Main) and Fuel Pump R 16 Rear Wiper Motor
F 12 Fuel Sender (Sub) R 17 Rear Wiper Relay
R 18 Remote Control Mirror LH
H 5 High Mounted Stop Light R 19 Remote Control Mirror RH
I 11 Interior Light

64
ENGINE CONTROL
THE ENGINE CONTROL SYSTEM UTILIZES A MICROCOMPUTER AND MAINTAINS OVERALL CONTROL OF THE ENGINE ETC. AN
OUTLINE OF ENGINE CONTROL IS GIVEN HERE.
1. INPUT SIGNALS
(1) ENGINE COOLANT TEMP. SENSOR SIGNAL SYSTEM
THE ENGINE COOLANT TEMP. SENSOR DETECTS THE ENGINE COOLANT TEMP. AND HAS A BUILT-IN THERMISTOR WITH A
RESISTANCE WHICH VARIES ACCORDING TO THE ENGINE COOLANT TEMP. THUS THE ENGINE COOLANT TEMP. IS INPUT IN
THE FORM OF A CONTROL SIGNAL TO TERMINAL THW OF THE ENGINE CONTROL MODULE.
(2) INTAKE AIR TEMP. SIGNAL SYSTEM
THE INTAKE AIR TEMP. SENSOR DETECTS THE INTAKE AIR TEMP. , WHICH IS INPUT AS A CONTROL SIGNAL TO TERMINAL THA
OF THE ENGINE CONTROL MODULE.
(3) OXYGEN SENSOR SIGNAL SYSTEM
THE OXYGEN SENSOR DETECTS THE OXYGEN DENSITY IN THE EXHAUST EMISSION WHICH IS INPUT AS A CONTROL SIGNAL
TO TERMINALS OX1 AND OX2 OF THE ENGINE CONTROL MODULE.
(4) 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, OR WHEN THE VALVE IS FULLY CLOSED.
(5) VEHICLE SPEED CIRCUIT
THE VEHICLE SPEED IS DETECTED BY VEHICLE SPEED SENSOR INSTALLED IN THE TRANSMISSION AND THE SIGNAL IS INPUT
TO TERMINAL SPD OF THE ENGINE CONTROL MODULE VIA THE COMBINATION METER.
(6) PARK/NEUTRAL POSITION SW SIGNAL SYSTEM
THE PARK/NEUTRAL POSITION SW DETECTS WHETHER THE SHIFT POSITION IS IN NEUTRAL OR NOT, AND INPUTS A CONTROL
SIGNAL TO TERMINAL NSW OF THE ENGINE CONTROL MODULE.
(7) A/C SW SIGNAL SYSTEM
THE OPERATING VOLTAGE OF THE A/C MAGNETIC CLUTCH IS DETECTED AND INPUT IN THE FORM OF A CONTROL SIGNAL TO
TERMINAL ACI OF THE ENGINE CONTROL MODULE.
(8) BATTERY SIGNAL SYSTEM
VOLTAGE IS CONSTANTLY APPLIED TO TERMINAL BATT OF THE ENGINE CONTROL MODULE. WHEN THE IGNITION SW IS
TURNED TO ON, VOLTAGE FOR THE ENGINE CONTROL MODULE OPERATION IS APPLIED VIA THE EFI MAIN RELAY TO
TERMINAL +B OF THE ENGINE CONTROL MODULE.
(9) INTAKE AIR VOLUME SIGNAL SYSTEM
INTAKE AIR VOLUME IS DETECTED BY THE MANIFOLD ABSOLUTE PRESSURE SENSOR AND IS INPUT AS A CONTROL SIGNAL
TO TERMINAL PIN OF THE ENGINE CONTROL MODULE.
(10) STARTER SIGNAL SYSTEM
TO CONFIRM THAT THE ENGINE IS CRANKING, THE VOLTAGE APPLIED TO THE STARTER MOTOR DURING CRANKING IS
DETECTED AND IS INPUT AS A CONTROL SIGNAL TO TERMINAL STA OF THE ENGINE CONTROL MODULE.
(11) ELECTRICAL LOAD SIGNAL SYSTEM
THE SIGNAL WHEN SYSTEMS SUCH AS THE REAR WINDOW DEFOGGER, HEADLIGHT, ETC. WHICH CAUSE A HIGH ELECTRICAL
BURDEN ARE ON IS INPUT TO TERMINAL ELS AS A CONTROL SIGNAL.
SYSTEM OUTLINE

85
B 6
BH ID
W-B
W-B W-B
W-B
W-BSW
ROL SW
LLED TRANSM ISSIO NG
G
G
G
(
M/T)
G
(
A/T)
GG
G
G
G
(
M/T)
(
A/T)
W-B
W-B
W-B
W-B GG
G
W-B
5 1
2 3
6 2
323
1 4
TAILLIGHT LH
[REA R C O M B. L IG H T L H] R 8
W-B
W-BG
CLOCK C 7
REAR WINDOW DEFOGGER R 5
HAZARD SW H 4
CENTER DIFF. LOCK CONT C 4
ELECTRONICALLY CONTRO
PATTERN SELECT SW E 3 JUNCTION
CONNECTER J10
B
W-B
2
1 2
REAR SIDE MARKER LIGHT LH R10
G
1H 71I 9
B

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

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

165
PERSONAL LIGHT
W IPER AND W ASHER SW
[COMB. SW ]
REAR WINDOW
DEFOGGER SW
COMBINATION M ETER
CRUISE CONTROL ECU
DOOR LO CK CONTROL
SW (
FRONT
PASSENGER' S SIDE)
DOOR KEY LOCK AND
UNLOCK SW (
FR ON T
PASSENGER' S SIDE)
BLOW ER SWTU RN SIG NA L FLA SHER
DATA LINK
CONNECTOR 3
CIGARETTE LIGHTER
O /D M AIN SW
REM OTE CONTROL
MIRROR SW
BUCKLE SW LH
CLOCK
CRUISE CONTROL SW
[COMB. SW ]
UNLOCK W ARNING SW
LIGHT CONTROL SW
[COMB. SW ]
FUEL SENDER (
MAIN)
RADIO AND PLAYER
C O M B IN A TIO N M E TE R SHIFT LOCK ECU
KEY INTERLOCK
SOLENOID
A/C AMPLIFIER
BLOW ER RESISTOR
DOOR LO CK CONTROL
RELAY
POWER W INDOW MASTER
SW
DOOR KEY LOCK AND
UNLOCK SW
(
DRIVER' S SIDE)
RHEOSTATIE 16
A A
A A
A A
A A
A A
IGA AB A
B A
B A
B A
B A
B 8
II1 16
B C
B C
B C A B
A B
A B
ID I 2 IC 116
B 2
IF IEID 110 W-B
W-B
W-BW-B
W-B
W-B
W-B
W-B
W-BW-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
BR
BR
BR W-
W-
W-
W-
W-
W-B
W-B
W-B
W-B
W-B W -B5
(
A/T)
B J10 , J11
A
JUNCTION CONNECTOR
B J10 , J11
A
JUNCTION CONNECTOR
(
A/
W-B
W-B W-B
W W-B
BR-B
W-B W-B
(
E2)
(
E1) AIRBAG SENSOR
ASSEMBLY
B
B
B
B
B T)W-B -BW
-B
4C3
4C10
4C7
4C8
4C94C 1
4C2
W
1D5
1H16
1H 71I 9