1996 TOYOTA RAV4 Speed sensor

BR040−02
− BRAKEREAR SPEED SENSOR
BR−47
1996 RAV4 (RM447U)
INSTALLATION
Installation is in the reverse order of removal (See page BR−46).
AFTER INSTALLATION, CHECK SPEED SENSOR SIGNAL (See page DI−234)

DI−12
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
7. ENGINE OPERATING CONDITION
NOTICE:
The value given below for ”Normal Condition” are representative values, so a vehicle may still be
normal even it its value varies from those listed here. So do not decide whether a part is faulty or not
solely according to the ”Normal Condition” here.
(a) CARB Mandated Signals
TOYOTA hand−held tester displayMeasurement ItemNormal Condition *
FUEL SYS #1
Fuel System Bank 1
OPEN: Air−fuel ratio feedback stopped
CLOSED: Air−fuel ratio feedback operating
Idling after warning up: CLOSED
CALC LOAD
Calculator Load:
Current intake air volume as a proportion of max.
intake air volumeIdling: 20.7 − 48.4 %
Racing without load (2,500 rpm) : 17.7 − 45.3 %
COOLANT TEMPEngine Coolant Temperature Sensor ValueAfter warning up: 80 − 95°C (176 − 203°F)
SHORT FT #1Short−term Fuel Trim Bank 10 ± 20 %
LONG FT #1Long−term Fuel Trim Bank 10 ± 20 %
ENGINE SPDEngine SpeedIdling: 700 ± 50 rpm
VEHICLE SPDVehicle SpeedVehicle Stopped: 0 km/h (0 mph)
IGN ADVANCEIgnition Advance
Ignition Timing of Cylinder No.1Idling: BTDC 0 − 10°
INTAKE AIRIntake Air Temperature Sensor ValueEquivalent to Ambient Temp.
MAPAbsolute Pressure Inside Intake ManifoldIdling: 21 − 49 kPa
Racing without load (2,500 rpm): 17 − 46 kPa
THROTTLE POS
Voltage Output of Throttle Position Sensor
Calculated as a Percentage
0V → 0 %, 5V → 100 %Throttle Fully Closed: 6 − 16 %
Throttle Fully Open: 64 − 98 %
O2S B1, S1Voltage Output of Oxygen Sensor
Bnak 1,Sensor 1Idling : 0.1 − 0.9 V
O2FT B1, S1Oxygen Sensor Fuel Trim Bank 1, Sensor 1
(Same as SHORT FT #1)0 ± 20 %
O2S B1, S2Voltage Output of Oxygen Sensor
Bank 1, Sensor 2Driving 50 km/h (31 mph): 0.1 − 0.9 V
*: If no 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.

DI−16
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U) DTC No.
(See Page)
Detection ItemTrouble AreaMILMemory
P0441
(DI−82)Evaporative Emission Control
System Incorrect Purge Flow
Open or short in VSV circuit for vapor pressure sensor
VSV for vapor pressure sensor
Open or short in vapor pressure sensor circuit
Vapor pressure sensor
Open or short in VSV circuit for EVAP
VSV for EVAP
Vacuum hose cracked, holed, blocked, damaged or
disconnected
Charcoal canister cracked, holed or damaged
 *1
P0446
(DI−82)Evaporative Emission Control
System Vent Control
Malfunction
P0450
(DI−92)Evaporative Emission Control
System Pressure Sensor
MalfunctionOpen or short in vapor pressure sensor circuit
Vapor pressure sensor
ECM
 *1
P0500
(DI−94)Vehicle Speed Sensor
Malfunction
Open or short in vehicle speed sensor circuit
Vehicle speed sensor
Combination meter
ECM
 *1
P0505
(DI−97)Idle Control System Malfunction
IAC valve is stuck or closed
Open or short in IAC valve circuit
Open or short AC1 single circuit
Air intake (hose loose)
 *1
*1: MIL lights up
MANUFACTURER DEFINED
DTC No.
(See Page)Detection ItemTrouble AreaMILMemory
P1300
(DI−100)Ignition Circuit Malfunction
Open or short in IGF or IGT circuit from igniter to ECM
Igniter
ECM
 *1
P1500
(DI−105)Starter Signal Circuit Malfunction
Open or short in starter signal circuit
Open or short in ignition switch or starter relay circuit
ECM
 *1
P1600
(DI−108)ECM BATT MalfunctionOpen in back up power source circuit
ECM *1
P1780
(DI−11 0)Park / Neutral Position Switch
MalfunctionShort in park / neutral position switch circuit
Park / neutral position switch
ECM
 *1
*1: MIL lights up

− 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

DI−24
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
DTC P0106 Manifold Absolute Pressure Circuit Range/
Performance Problem
CIRCUIT DESCRIPTION
Refer to Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction on page DI−21.
DTC No.DTC Detecting ConditionTrouble Area
P0106
After the engine is warmed up, conditions (a) and (b) continue
with engine speed 400 ∼ 1,000 rpm
(2 trip detection logic)
(a) Throttle valve fully closed
(b) Manifold absolute pressure sensor output > 3.0 V
Manifold absolute pressure sensor.Condition (c) and (d) continue with engine speed 2,500 rpm or
less
(2 trip detection logic)
(c) VTA > 1.8
(d) Manifold absolute pressure sensor output < 1.0 V
WIRING DIAGRAM
Refer to Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction on page DI−21.
INSPECTION PROCEDURE
HINT:
If DTC ”P0105” (Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction) and ”P0106” (Man-
ifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem) are output simulta-
neously, manifold absolute pressure sensor circuit may be open.
Perform troubleshooting of DTC P0105 first.
1 Are there any other codes (besides DTC P0106) being output?
YES Go to relevant DTC chart.
NO
Replace manifold absolute pressure sensor.
DI3ZD−01

DI−38
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
DTC P0121 Throttle/Pedal Position Sensor/Switch ”A”
Circuit Range/Performance Problem
CIRCUIT DESCRIPTION
Refer to Throttle / Pedal Position Sensor / Switch ”A” Circuit Malfunction on page DI−34.
DTC No.DTC Detecting ConditionTrouble Area
P0121
After the vehicle speed has been exceeded 30 km/h (19 mph)
even once, the output value of the throttle position sensor is
out of the applicable range while the vehicle speed between 30
km/h (19 mph) and 0 km/h (0 mph)
(2 trip detection logic)
Throttle position sensor
INSPECTION PROCEDURE
1 Are there any other codes (besides DTC P0121) being output?
YES Go to relevant DTC chart.
NO
Replace throttle position sensor.
DI3ZI−01

FI6606FI7210A06619
Atmosphere
Flange
Platinum Electrode
Solid Electrolyte
(Zirconia Element)
Platinum Electrode
Coating (Ceramic)
Richer−air Fuel Ratio−Leaner Ideal Air−Fuel Mixture
Output Voltage
Cover
Exhaust Gas
− DIAGNOSTICSENGINE
DI−39
1996 RAV4 (RM447U)
DTC P0125 Insufficient Coolant Temp. for Closed Loop
Fuel Control
CIRCUIT DESCRIPTION
To obtain a high purification rate for the CO, HC and NOx components of the exhaust gas, a three−way cata-
lytic converter is used, but for the most efficient use of the three−way catalytic converter, the air−fuel ratio
must be precisely controlled so that it is always close to the stoichiometric air−fuel ratio.
The oxygen sensor has the characteristic whereby its output voltage changes suddenly in the vicinity of the
stoichiometric air−fuel ratio. This characteristic is used to detect the oxygen concentration in the exhaust
gas and provide feedback to the computer for control of the air−fuel ratio.
When the air−fuel ratio becomes LEAN, the oxygen concentration in the exhaust increases and the oxygen
sensor informs the ECM of the LEAN condition (small electromotive force: 0 V).
When the air−fuel ratio is RICHER than the stoichiometric air−fuel ratio the oxygen concentration in the ex-
haust gas is reduced and the oxygen sensor informs the ECM of the RICH condition (large electromotive
force: 1 V).
The ECM judges by the electromotive force from the oxygen sensor whether the air−fuel ratio is RICH or
LEAN and controls the injection time accordingly. However, if malfunction of the oxygen sensor causes out-
put of abnormal electromotive force, the ECM is unable to perform accurate air−fuel ratio control.
DTC No.DTC Detecting ConditionTrouble Area
P0125
After the engine is warmed up, oxygen sensor output does not
indicate RICH even once when conditions (a), (b), and (c)
continue for at least 1.5 minutes
(a) Engine speed: 1,500 rpm or more
(b) Vehicle speed: 40 ∼ 100 km/h (25 ∼ 62 mph)
(c) Throttle valve does not fully closed
Open or short in oxygen sensor circuit
oxygen sensor
HINT:
After confirming DTC P0125 use the OBDII scan tool or TOYOTA hand−held tester to confirm voltage output
of oxygen sensor from ”CURRENT DATA”.
If voltage output of oxygen sensor is 0 V, oxygen sensor circuit may be open or short.
DI3ZJ−01

A01666
Vehicle speed
50 − 65 km/h
(31 − 40 mph)
Idling
IG SW OFF
1 − 3 min.
1 min.
Time (1)(2)(4)
(5) (3) DI−42
− DIAGNOSTICSENGINE
1996 RAV4 (RM447U)
DTC P0130 Oxygen Sensor Circuit Malfunction
(Bank 1 Sensor 1)
CIRCUIT DESCRIPTION
Refer to ”Insufficient Coolant Temp. for Closed Loop Fuel Control” on page DI−39.
DTC No.DTC Detecting ConditionTrouble Area
P0130
Voltage output of oxygen sensor remains at 0.35 V or more,
0.55 V or less, during idling after the engine is warmed up
(2 trip detection logic)Oxygen sensor
Fuel trim malfunction
HINT:
Sensor 1 refers to the sensor closer to the engine body.
The oxygen sensor’s output voltage and the short−term fuel trim value can be read using the OBDII scan
tool or TOYOTA hand−held tester.
WIRING DIAGRAM
Refer to page DI−39 for the WIRING DIAGRAM.
CONFIRMATION DRIVING PATTEN
(1) Connect the TOYOTA hand−held tester to the DLC3.
(2) Switch the TOYOTA hand−held tester from normal mode to check mode (See page DI−3).
(3) Start the engine and warm it up with all accessory switches OFF.
(4) Drive the vehicle at 50 − 65 km/h (31 − 40 mph) for 1 − 3 minutes to warm up the oxygen sensor.
(5) Idle the engine for 1 minute.
HINT:
If a malfunction exists, the MIL will light up during step (5).
NOTICE:
If the conditions in this test are not strictly followed, detection of the malfunction will not be possible.
If you do not hove a TOYOTA hand−held tester, turn the ignition switch OFF after performing steps
(3) to (5), then perform steps (3) to (5) again.
DI3ZK−01