coolant temperature TOYOTA RAV4 1996 Service Repair Manual

clutch.
Vehicle Does Not Move In Reverse ("R")
Check 1-2 shift valve, 2-3 shift valve, 2nd coast brake, front planetary gear, rear planetary gear, direct clutch,
OD direct clutch and 1st and reverse brake.
No 1-2 &/Or 2-3 Upshift
Check Throttle Position (TP) sensor circuit, No. 1 and No. 2 shift solenoid circuit, Vehicle Speed Sensor (VSS)
circuit, Electronic Control Transmission Electronic Control Module (ECT ECM), 1-2 shift valve, 2-3 shift
valve, 2nd brake, direct clutch and No. 1 one-way clutch.
No 3-O/D Upshift
Check OD switch and OD OFF indicator switch circuit, OD cancel signal circuit, No. 1 and No. 2 shift solenoid
circuit, VSS, Engine Coolant Temperature (ECT) circuit, ECT ECM, 3-4 shift valve and OD brake.
No O/D-3 Downshift
Check No. 1 and No. 2 shift solenoid valve, VSS circuit, OD cancel signal circuit, ECT ECM and 3-4 shift
valve.
No 3-2 &/Or 2-1 Downshift
Check No. 1 and No. 2 shift solenoid valve, VSS circuit, TP sensor circuit, ECT ECM, 2-3 shift valve, 1-2 shift
valve and 2nd coast brake.
No Torque Converter Lock-Up
Check shift solenoid valve SL circuit, TP sensor circuit, VSS circuit, OD cancel circuit, brakelight circuit, ECT
circuit, ECT ECM, lock-up relay valve and torque converter clutch.
Torque Converter Lock-Up Will Not Release
Check shift solenoid valve SL circuit, TP sensor circuit, brakelight circuit, ECT ECM circuit, lock-up relay
valve and torque converter clutch.
Shift Speeds Too High Or Too Low
Check TP sensor circuit, VSS circuit, shift solenoid valve SL circuit, OD cancel signal circuit, pattern select
switch circuit and ECT ECM.
Harsh Engagement Neutral To Reverse
Check direct clutch accumulator, direct clutch, throttle valve and 1st and reverse brake.
Harsh Engagement Neutral To Drive

1998 Toyota Avalon XLS
1997-99 AUTOMATIC TRANSMISSIONS Toyota A-540E, A-540H & A-541E Overhaul
Helpmelearn
November-03-08 10:28:16 AMPage 7 © 2005 Mitchell Repair Information Company, LLC.

1. If shift lever is actuated with engine idling, a time lag will be noted before shock can be felt. This test is
used for checking condition of OD direct clutch, forward clutch, direct clutch, and 1st and reverse brake.
2. Apply parking brake. Start engine. On RAV4, ensure idle speed is 700-800 RPM. On all other models,
ensure idle speed is 650-750 RPM. Shift transaxle from "N" into "D" range. Use a stop watch to measure
elapsed time between shifting of lever until shock is felt. Standard time lag is less than 1.2 seconds.
3. Repeat procedure outlined in step 2) to measure time lag for "N" to "R". Standard lag time is less than 1.5
seconds.
4. If "N" to "D" time lag is longer than specification, line pressure is too low, forward clutch may be worn,
or OD one-way clutch is not operating properly.
5. If "N" to "R" time lag is longer than specified, direct clutch may be worn, 1st and reverse brake may be
worn, line pressure is too low or OD one-way clutch is not operating properly.
ROAD TEST
"D" Range Test In NORM & PWR Pattern Ranges
1. Shift into "D" range. Hold accelerator pedal constant at full throttle. Place shift mode button in NORM or
PWR position. Check 1-2, 2-3, and 3-OD lock-up and upshift points. See appropriate table under SHIFT
SPEED SPECIFICATIONS .
zIf no 1-2 upshift occurs, check 1-2 shift valve or solenoid.
zIf no 2-3 upshift occurs, check 2-3 shift valve or solenoid.
zIf no 3-OD upshift occurs, check 3-OD shift valve.
zIf all shift points are incorrect, check throttle valve, 1-2 shift valve, 2-3 shift valve and 3-OD shift
valve.
zIf all lock-up points are incorrect, check lock-up relay valve or shift solenoid valve SL.
2. Use procedure outlined in step 1) to check for shock and slip between 1-2, 2-3, and 3-OD upshifts. If
shock is harsh, line pressure may be too high. Check accumulator or check ball.
3. Run vehicle in "D" range lock-up or overdrive gear. Check for abnormal noise and vibration.
4. While running in "D" range, confirm correct kickdown vehicle speed limits for 2-1, 3-2, OD-3 shift
points. Check for abnormal shock and slip at kickdown.
5. Check loc
k-up function. Drive vehicle in OD gear of "D" range with lock-up on. Hold vehicle speed NOTE: Perform test at normal operating fluid temperature of 122-176°F (50-80°C).
NOTE: There is no overdrive upshift when coolant temperature is below 140°F
(60°C). There is no lock-up when vehicle speed is 6 MPH less than the set
cruise control speed.
NOTE: Check for cause of abnormal noise and vibration must be made with
extreme care as problem could be due to an unbalanced drive shaft,
differential, tire, torque converter, etc.

1998 Toyota Avalon XLS
1997-99 AUTOMATIC TRANSMISSIONS Toyota A-540E, A-540H & A-541E Overhaul
Helpmelearn
November-03-08 10:28:17 AMPage 10 © 2005 Mitchell Repair Information Company, LLC.

exposed brush length is less than minimum, replace brushes or brush holder assembly. Install new brush
springs when replacing brushes.
ROTOR
1. Check rotor for open field windings by using an ohmmeter across slip rings. Rotor resistance should be
within specification. See ROTOR RESISTANCE SPECIFICATIONS
table.
2. Check rotor for shorts to ground by connecting ohmmeter between slip ring and rotor shaft. Ohmmeter
should indicate no continuity. Check slip rings for wear or pitting. Standard slip ring diameter is .559-
.567" (14.2-14.4 mm). Turn slip rings on lathe if necessary. Minimum slip ring diameter is .504" (12.8
mm).
ROTOR RESISTANCE SPECIFICATIONS
STATOR
Connect ohmmeter between 2 stator leads. Continuity should exist between all stator leads. Connect ohmmeter
between each stator lead and metal core. Continuity should not exist. If stator does not test as indicated, replace
stator.
DIODES
1. With diode/rectifier assembly removed and on bench, contact positive diode plate terminal with one
ohmmeter probe. Using other ohmmeter probe, contact each diode lead in same plate. Note ohmmeter
reading. Reverse ohmmeter probes, and repeat tests for all diodes.
2. All diodes should show continuity in one direction and no continuity in opposite direction. If any diode is
defective, replace diode/rectifier assembly.
REMOVAL & INSTALLATION
GENERATOR
Removal & Installation (Land Cruiser)
1. Disconnect negative battery cable. Drain engine coolant. Rotate belt tensioner counterclockwise to release
tension on belt and remove drive belt. Remove splash shield from underneath en
gine. Remove radiator
Application(1) Ohms
Avalon2.1-2.5
Camry & Camry Solara
4-Cyl.2.7-3.1
V62.1-2.5
Land Cruiser, Sienna, Tacoma, Tundra & 4Runner2.1-2.5
All Other Models2.7-3.1
(1)Specification given is with temperature at 68°F (20°C).

1999 Toyota RAV4
1999-2000 STARTING & CHARGING SYSTEMS Generators & Regulators
Microsoft
Sunday, November 22, 2009 10:13:07 AMPage 7 © 2005 Mitchell Repair Information Company, LLC.

1999-2000 ENGINE COOLING
Electric Cooling Fans
IDENTIFICATION
ELECTRIC COOLING FAN IDENTIFICATION
DESCRIPTION & OPERATION
Land Cruiser, Tacoma, Tundra and 4Runner use a belt-driven cooling fan attached to the water pump. All other
models use 2 electric cooling fans located directly behind the radiator. Fans are controlled via Engine Coolant
Temperature (ECT) switches/sensors, and turn on when engine coolant temperature is above 208°F (98°C) on
Avalon, Camry with 3.0L, Camry Solara with 3.0L and Sienna. On Camry with 2.2L, Camry Solara with 2.2L,
Celica, Corolla, ECHO, MR2 and RAV4, ECT turns cooling fans on above 199°F (93°C). On Avalon, Camry
with 3.0L, Camry Solara with 3.0L and Sienna, fans will turn off when engine coolant temperature falls below
190°F (88°C). On Camry with 2.2L, Camry Solara with 2.2L, Celica, Corolla and RAV4, fans will turn off
below 181°F (83°C).
SYSTEM TESTS
ELECTRIC COOLING FAN
Avalon (1999), Camry 3.0L, Camry Solara 3.0L & Sienna
1. With engine coolant temperature below 190°F (88°C), turn ignition switch to ON position (engine off).
Ensure fans stop.
2. If fan do not stop, test cooling fan relay and ECT switch. See COOLING FAN RELAYS
and ECT
SWITCH . Check for loose or broken connector or wiring between relay and ECT switch. Repair as
necessary.
3. Disconnect No. 1 ECT switch connector. See ECT SWITCH LOCATIONS
table. With ignition still in
ON position, ensure cooling fan turns on. If not, check fuses, engine main relay, cooling fan relay and
cooling fan motor. Check for short between cooling fan relay and ECT switch.
4. Start engine and raise temperature above 208°F (98°C). Ensure cooling fan turns. If not, replace No. 1
ECT switch.
5. Stop engine and disconnect cooling fan 2-pin connector. With battery connected to ammeter (positive
battery terminal to positive ammeter terminal and negative battery and negative ammeter terminals to
each connector pin), test amperage readings. See Fig. 1
. If readings are not as specified, replace cooling
fan. See COOLING FAN AMPERAGE READINGS
table. Reconnect fan connector.
Avalon (2000)
ApplicationCooling Fan Location
All Models
Condenser Cooling FanPassenger's Side, Rear Of Radiator
Radiator Cooling FanDriver's Side, Rear Of Radiator

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans
Microsoft
Sunday, November 22, 2009 10:21:41 AMPage 1 © 2005 Mitchell Repair Information Company, LLC.
Microsoft
Sunday, November 22, 2009 10:21:45 AMPage 1 © 2005 Mitchell Repair Information Company, LLC.

1. With engine coolant temperature below 181°F (83°C), turn ignition switch to ON position (engine off).
Ensure fans stop.
2. If fans do not stop, test cooling fan relays and ECT switches. See COOLING FAN RELAYS
and ECT
SWITCH . Check for loose or broken connector or wiring between relay and ECT switch. Repair as
necessary.
3. Disconnect No. 1 ECT switch wire connector. Connect jumper wire to No. 1 ECT terminals. Ensure fan
rotates at high speed. If fan does not rotate, check No. 1 cooling fan relay and cooling fan. Reconnect No.
1 switch connector.
4. Disconnect No. 2 switch connector. Ground terminal on No. 2 ECT switch wire harness side connector.
Ensure No. 1 and No. 2 fans rotate at low speed. If fans do not rotate, check No. 2 cooling fan relay, No.
3 cooling fan relay and No. 2 cooling fan. Reconnect No. 2 ECT switch connector.
5. Inspect No. 1 and No. 2 cooling fans. Disconnect cooling fan connector. With battery connected to
ammeter (positive battery terminal to positive ammeter terminal and negative battery and negative
ammeter terminals to each connector pin), test amperage readings. See Fig. 1
. If readings are not as
specified, replace cooling fan. See COOLING FAN AMPERAGE READINGS
table. Reconnect fan
connector.

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans
Microsoft
Sunday, November 22, 2009 10:21:41 AMPage 2 © 2005 Mitchell Repair Information Company, LLC.

Fig. 1: Testing Amperage At Fan Connectors (Corolla Shown; Other Models Similar)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Camry 2.2L, Camry Solara 2.2L, Celica, Corolla, ECHO, MR2 & RAV4
1. With engine coolant temperature below 181°F (83°C), turn ignition switch to ON position (engine off).
Ensure fan stops.
2. If fan does not stop, test cooling fan relay and ECT switch/sensor. See COOLING FAN RELAYS
and
ECT SWITCH
or ECT SENSOR . Check for loose or broken connector or wiring between relay and
ECT switch. Repair as necessary.
3. Disconnect ECT switch/sensor connector. See ECT SWITCH LOCATIONS
table. With ignition still in
ON position, ensure cooling fan turns on. If not, check fuses, engine main relay (if equipped), cooling fan
relay, and cooling fan motor. On MR2, check ECM. On all models, check for short between cooling fan
relay and ECT switch.
4. Start engine and raise temperature above 199°F (93°C). Ensure cooling fan turns. If not, replace ECT
switch/sensor.
5. Stop engine and disconnect cooling fan 2-pin connector. With battery connected to ammeter (positive
battery terminal to positive ammeter terminal and negative battery and negative ammeter terminals to
each connector pin), test amperage readings. See Fig. 1
. If readings are not as specified, replace cooling
fan. See COOLING FAN AMPERAGE READINGS
table. Reconnect fan connector.
ECT SWITCH LOCATIONS
COOLING FAN AMPERAGE READINGS
ApplicationECT Switch Location
All Models
Condenser Cooling FanPassenger's Side, Rear Of Radiator
Radiator Cooling FanDriver's Side, Rear Of Radiator
ApplicationAmps @ 68°F (20°C)
Avalon
19999.2-11.0
20008.5-11.5
Camry & Camry Solara
5S-FE4.9-8.5
1MZ-FE8.3-11.3
Celica
19996.4-7.4
20005.2-8.2
Corolla5.2-8.2
ECHO (1) 7.8-11.8
MR25.7-7.7
RAV49.1-11.1
Sienna

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans
Microsoft
Sunday, November 22, 2009 10:21:41 AMPage 4 © 2005 Mitchell Repair Information Company, LLC.

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
ENGINE COOLANT TEMPERATURE (ECT) SWITCH
Avalon, Camry 3.0L, Camry Solara 3.0L, & Sienna
1. Drain engine coolant. Remove ECT switches. See ECT SWITCH LOCATION table. Place ECT switch
thermal sensor into a water bath.
2. Using an ohmmeter, check that there is no continuity between ECT switch terminals when coolant
temperature is above 208°F (98°C) on No. 1 ECT switch or below 181°F (83°C) on No. 2 ECT switch. If
there is continuity, replace switch.
3. Cool water and check that there is continuity between the switch terminals when coolant temperature is
below 190°F (88°C) or above 199°F (93°C), on Avalon, or above 201°F (94°C), on Camry with 3.0L,
Camry Solara with 3.0L and Sienna. If there is no continuity, replace switch.
4. Reinstall switches. Fill with engine coolant.
Camry 2.2L, Camry Solara 2.2L, Celica (1999), Corolla, ECHO & RAV4
1. Drain engine coolant. Remove ECT switch. See ECT SWITCH LOCATION table. Place ECT switch
thermal sensor into a water bath.
2. Using an ohmmeter, check that there is no continuity between ECT switch terminals when coolant
temperature is above 199°F (93°C). If continuity exists, replace ECT switch.
3. Cool water and check that there is continuity when coolant temperature is below 181°F (83°C). If there is
no continuity, replace ECT switch.
4. Reinstall switches. Fill with engine coolant.
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
MR2 & 2000 Celica
1. Drain engine coolant. On 2000 Celica, remove No. 2 cylinder head cover. On all models, remove ECT
sensor. See ECT SENSOR LOCATIONS
. Place ECT sensor and thermometer into a water bath.
ECT SENSOR LOCATIONS
2. Measure resistance between terminal Nos. 1 and 2. See Fig. 17
. If resistance is not as specified, replace
ECT sensor.
ApplicationSensor Location
Celica (2000)Driver's Side, Rear Of Radiator
MR2Passenger's Side, Rear Of Radiator

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans
Microsoft
Sunday, November 22, 2009 10:21:41 AMPage 22 © 2005 Mitchell Repair Information Company, LLC.

SOLENOIDS & SOLENOID VALVES
SOLENOIDS & SOLENOID VALVES
ABS Speed Sensor (Rear Right)On right rear wheel hub/spindle assembly.
A/C Magnetic Clutch & Lock Sensor (W/
A/C)On right front of engine compartment, on A/C
compressor. See Fig. 3
.
A/C Magnetic Clutch & Lock Sensor
Connector (W/O A/C)On right front of engine compartment. See Fig. 3 .
A/C ThermistorBehind right side of dash.
Air Fuel Ratio Sensor (Bank 1 Sensor 1)
(California)On left side of engine, in center of engine compartment, in
exhaust.
Camshaft Position SensorOn front of engine.
Crankshaft Position SensorOn left front of engine. See Fig. 3 .
Engine Coolant Temperature SensorOn left rear of engine. See Fig. 3 .
Front Air Bag Sensor (Left)Behind left side of front bumper.
Front Air Bag Sensor (Right)Behind right side of front bumper.
Fuel Sender Main & Fuel PumpIn fuel tank.
Fuel Sender (Sub)Under center rear of vehicle.
Heated Oxygen Sensor (Bank 1 Sensor 1)
(Except California)On left side of engine, in center of engine compartment, in
exhaust. See Fig. 2
.
Heated Oxygen Sensor (Bank 1 Sensor 2)In exhaust pipe on underside of vehicle. See Fig. 2 .
Intake Air Temperature SensorOn left center of engine compartment. See Fig. 2 .
Knock SensorOn right side of engine. See Fig. 2 .
Manifold Absolute Pressure SensorOn center rear of engine compartment. See Fig. 2 .
Throttle Position SensorOn throttle body assembly. See Fig. 2 .
Vapor Pressure SensorOn left side of firewall. See Fig. 2 .
Vehicle Speed Sensor (Combination Meter)On left center of engine compartment, on transmission.
See Fig. 2
.
Vehicle Speed Sensor (Front)On left center of engine compartment. See Fig. 2 .
Vehicle Speed Sensor (Rear)On center of engine compartment. See Fig. 2 .
Washer Level SensorIn washer fluid reservoir.
Water Temperature SenderOn left rear of engine. See Fig. 2 .
ComponentComponent Location
Electronically Controlled Transmission
SolenoidOn lower left front of engine compartment, on transmission.
See Fig. 3
.
Idle Air Control ValveOn top right rear of engine. See Fig. 2 .
Key Interlock SolenoidOn left side of dash, near steering column.
Solenoid Valve SLDOn top left of engine. See Fig. 2 .
VSV (Center Differential Lock No. 1)On center rear of engine compartment. See Fig. 2 .
VSV (Center Differential Lock No. 2)On center rear of engine compartment. See Fig. 2 .
VSV (EGR)On left side of engine. See Fig. 2 .

1999 Toyota RAV4
1999 TOYOTA RAV4
Microsoft
Sunday, November 22, 2009 10:17:32 AMPage 3 © 2005 Mitchell Repair Information Company, LLC.

1999 HEATER SYSTEMS
RAV4, Tacoma & 4Runner
DESCRIPTION
Major components of the heater system are a heater core, control panel, blower motor, water valve, hoses,
control cables and air ducts. 4Runner may be equipped with a dual heater system with separate controls for
front and rear. Rear temperature and blower controls are located in the console between front seats.
OPERATION
BLOWER SWITCH
Switch controls blower motor speed through blower resistor. Blower speed is adjusted by control lever, knob or
push button.
CONTROL PANEL
Temperature and mode knobs or levers are connected by cable to heater coolant valve and air doors. All models
have a fresh/recirculation lever to provide choice of outside air or recirculated inside air.
HEATER RELAY
A heater (or main) relay controls current through system. For location of heater (main) relay, see WIRING
DIAGRAMS .
ADJUSTMENTS
AIR INLET DAMPER CABLE
Set air inlet damper and control lever to fresh (recirculated on RAV4) air position. Remove cable retaining clip,
and ensure damper and cable are in full fresh (recirculated on RAV4) air position. Install control cable clip.
Check operation of air intake damper.
AIRFLOW MODE DAMPER CABLE WARNING:To avoid injury from accidental air bag deployment, read and carefully
follow all SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR
BAG SYSTEM procedures in AIR BAG SYSTEM SAFETY article in
GENERAL SERVICING.
CAUTION: When battery is disconnected, radio will go into anti-theft protection mode.
Obtain radio anti-theft protection code from owner prior to servicing
vehicle.

1999 Toyota RAV4
1999 HEATER SYSTEMS RAV4, Tacoma & 4Runner

1999 Toyota RAV4
1999 HEATER SYSTEMS RAV4, Tacoma & 4Runner
Microsoft
Sunday, November 22, 2009 10:30:50 AMPage 1 © 2005 Mitchell Repair Information Company, LLC.
Microsoft
Sunday, November 22, 2009 10:30:55 AMPage 1 © 2005 Mitchell Repair Information Company, LLC.

1999 MANUAL A/C-HEATER SYSTEMS
RAV4
SPECIFICATIONS
SPECIFICATIONS
DESCRIPTION
RAV4 manual A/C-heater system uses a Nippondenso 10-cylinder compressor. The compressor only operates
in normal operating temperatures and pressures set for this model. An electric condenser fan is used and
operates at 2 speeds, depending on system pressure, engine coolant temperature and A/C switch position.
System components used are: fan switch, A/C amplifier, evaporator, thermistor, dual-pressure switch, engine
coolant temperature switch, compressor, condenser, receive
r-drier, and all the necessary pipes and hoses. Air
ApplicationSpecification
Compressor TypeNippondenso 10PA15 10-Cyl.
Compressor Clutch Clearance.014-.026" (.35-.65 mm)
Compressor Belt Tension (1)
New Belt (2) 135-185 lbs. (61-84 kg)
Used Belt80-120 lbs. (36-54 kg)
Compressor Oil Capacity (3) 4.1 ozs.
Refrigerant (R-134a) Capacity22.9-26.5 ozs.
System Operating Pressures (4)
Low Side22-37 psi (1.5-2.5 kg/cm2 )
High Side206-235 psi (14-16 kg/cm2 )
(1)Using a belt tension gauge, measure at longest run of belt.
(2)A new belt is one that has been used less than 5 minutes.
(3)Use ND-Oil 8 (Part No. 08885-09109).
(4)When ambient temperature is 86-95°F (30-35°C).
WARNING:To avoid injury from accidental air bag deployment, read and carefully
follow all SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR
BAG SYSTEM procedures in AIR BAG SYSTEM SAFETY article in
GENERAL SERVICING.
CAUTION: When battery is disconnected, radio will go into anti-theft protection mode.
Obtain radio anti-theft protection code from owner prior to servicing
vehicle.

1999 Toyota RAV4
1999 MANUAL A/C-HEATER SYSTEMS RAV4

1999 Toyota RAV4
1999 MANUAL A/C-HEATER SYSTEMS RAV4
Microsoft
Sunday, November 22, 2009 10:29:27 AMPage 1 © 2005 Mitchell Repair Information Company, LLC.
Microsoft
Sunday, November 22, 2009 10:29:33 AMPage 1 © 2005 Mitchell Repair Information Company, LLC.