TOYOTA RAV4 1996 Service Repair Manual

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans
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Sunday, November 22, 2009 10:21:41 AMPage 51 © 2005 Mitchell Repair Information Company, LLC.

Fig. 31: Electric Cooling Fan System Wiring Diagram (1999-2000 Sienna -With Towing Package)

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans
Microsoft
Sunday, November 22, 2009 10:21:41 AMPage 52 © 2005 Mitchell Repair Information Company, LLC.

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans
Microsoft
Sunday, November 22, 2009 10:21:41 AMPage 53 © 2005 Mitchell Repair Information Company, LLC.

Fig. 32: Electric Cooling Fan System Wiring Diagram (1999-2000 Sienna -Without Towing Package)

1999 Toyota RAV4
1999-2000 ENGINE COOLING Electric Cooling Fans
Microsoft
Sunday, November 22, 2009 10:21:41 AMPage 54 © 2005 Mitchell Repair Information Company, LLC.

1999 ACCESSORIES & EQUIPMENT
Cruise Control Systems - RAV4
DESCRIPTION
Cruise control system consists of cruise control Electronic Control Unit (ECU), actuator and cables, speed
sensor, cruise control switch, stoplight switch, clutch switch (M/T), park/neutral position switch (A/T) and
related wirin
g. See Fig. 1 . The system allows vehicle to cruise at a desired speed greater than 25 MPH. WARNING:Deactivate air bag system before performing any service operation. See
AIR BAG RESTRAINT SYSTEMS article. DO NOT apply electrical power to
any component on steering column without first deactivating air bag
system. Air bag may deploy.

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
Microsoft
Sunday, November 22, 2009 10:52:01 AMPage 1 © 2005 Mitchell Repair Information Company, LLC.
Microsoft
Sunday, November 22, 2009 10:52:04 AMPage 1 © 2005 Mitchell Repair Information Company, LLC.

Fig. 1: Locating Cruise Control Components
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
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Sunday, November 22, 2009 10:52:01 AMPage 2 © 2005 Mitchell Repair Information Company, LLC.

OPERATION
Cruise control system functions can be performed from cruise control switch, located on lever on right side of
steering column. Pressing cruise ON-OFF (main) switch at end of lever turns system on. CRUISE indicator
light in instrument cluster comes on when desired cruising speed is set. To set desired speed, move control lever
downward in SET/COAST direction and release it. Desired speed should be maintained. Press cruise ON-OFF
(main) switch again to turn cruise control system off.
Cancel set speed by moving cruise control lever in CANCEL direction, pressing brake pedal, or pressing clutch
pedal (M/T) or placing shift lever in Neutral (A/T). If vehicle speed drops to less than 25 MPH, set speed will
automatically cancel. If vehicle speed decreases 10 MPH less than set speed, set speed will also cancel. If cruise
control ECU detects a system malfunction, set speed will automatically cancel and CRUISE indicator light will
flash several times.
Moving cruise control lever in RES/ACC (resume/accelerate) direction allows vehicle to return to speed set
before cancellation. Holding cruise control lever in RES/ACC (resume/accelerate) direction gradually increases
vehicle speed. Holding cruise control lever in SET/COAST direction gradually decreases vehicle speed.
ACTUATOR
Actuator consists of a motor, safety magnetic clutch, position sensor, pulley and a cable connected to engine
throttle valve. When actuator receives a signal from cruise control ECU, it engages safety magnetic clutch and
activates motor. Motor causes pulley and cable to move, which will open or close engine throttle valve.
When motor rotates forward, pulley also rotates (via safety magnetic clutch, gears and drive shaft). A cable
connected to engine throttle valve and opens valve accordingly. When motor rotates in a reverse direction,
pulley and cable also rotate in a reverse direction and engine throttle valve closes.
CRUISE CONTROL SWITCH
ON-OFF (Main Switch)
Cruise ON-OFF switch is power switch for cruise control system. When ignition is turned off, cruise ON-OFF
switch is also turned off. The switch remains off even when ignition is turned on again.
SET/COAST Position
When cruise control switch is moved to SET/COAST position with cruise ON-OFF switch turned to ON
position and vehicle speed greater than 25 MPH, cruise control ECU stores vehicle speed and maintains that
speed via actuator.
When cruise control switch is moved to SET/COAST position while in cruise control mode, actuator motor is
energized to close engine throttle valve. Vehicle decelerates until switch is released. From then on, cruise
control ECU stores new vehicle speed and maintains that speed.
RES/ACC Position

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
Microsoft
Sunday, November 22, 2009 10:52:01 AMPage 3 © 2005 Mitchell Repair Information Company, LLC.

If cruise control operation is canceled by any canceling switch, vehicle set speed can be resumed and controlled
at the previously set speed by moving cruise control switch to RES/ACC (resume/accelerate) position. Set
speed, however, cannot be resumed if vehicle speed drops to less than 25 MPH, which clears cruise control
ECU set speed stored.
When cruise control switch is moved to RES/ACC (resume/accelerate) position while in cruise control mode,
actuator motor is energized to open engine throttle valve. Vehicle accelerates until switch is released. From then
on, cruise control ECU stores new vehicle speed and maintains that speed.
Cancel Position
When cruise control switch is moved to CANCEL position, a cancellation signal is sent to cruise control ECU
disabling cruise control operation. Previous vehicle set speed is stored in cruise control ECU memory.
CRUISE CONTROL ELECTRONIC CONTROL UNIT (ECU)
Cruise control Electronic Control Unit (ECU) constantly monitors and compares set speed with actual vehicle
speed from input sensors. When vehicle speed is greater than set speed, cruise control ECU activates actuator
motor to close engine throttle valve, reducing vehicle speed. When vehicle speed drops to less than set speed,
cruise control ECU activates actuator motor to open engine throttle valve, increasing vehicle speed.
Cruise control ECU includes a self-diagnostic function. If cruise control system is canceled by any condition
other than driver operation, cruise control ECU assumes a malfunction has occurred and may set a
corresponding trouble code.
VEHICLE SPEED SENSOR
Vehicle speed sensor is mounted on transaxle. Vehicle speed sensor rotor shaft is driven by a gear on transaxle
output shaft. For each shaft rotation, vehicle speed sensor sends a 4-pulse signal to instrument cluster and cruise
control ECU. Cruise control ECU calculates vehicle speed from this pulse signal.
SELF-DIAGNOSTIC SYSTEM
When vehicle is in cruise control mode, system will cancel due to a malfunction in actuator, vehicle speed
sensor or other cruise circuit. When cruise control functions are canceled due to a malfunction, CRUISE
indicator light will blink, indicating a trouble code is stored in cruise control ECU memory. See DIAGNOSTIC
TROUBLE CODE DEFINITIONS table under SELF-DIAGNOSTIC SYSTEM.
If a fault or symptom is present, but no trouble codes were set, a system function test can be performed. See
CRUISE CONTROL FUNCTION TEST
under TROUBLE SHOOTING.
Before proceeding with cruise control system self-diagnostic system, ensure basic inspection of system
connectors and wiring harnesses has been performed. If no faults were found during basic inspection, proceed
with self-diagnostic system.
NOTE: Intermittent failures may cause CRUISE indicator light to flicker or come on.
Light will go out after fault goes away. Fault may or may not be present at time

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
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Sunday, November 22, 2009 10:52:01 AMPage 4 © 2005 Mitchell Repair Information Company, LLC.

ADJUSTMENTS
ACTUATOR CONTROL CABLE
Ensure actuator, control cable and throttle linkage are installed properly. Ensure actuator and bell crank operate
smoothly. Ensure cable is not too loose or tight. Cable free play should be less than .39" (10 mm). If control
cable is too loose, vehicle will lose speed while driving uphill. If control cable is too tight, idle RPM will
increase.
TROUBLE SHOOTING
CRUISE CONTROL FUNCTION TEST
Cruise control function test is used to help determine if cruise control circuits are functioning properly when no
trouble codes are present. To activate function test, turn ignition on. Push cruise control switch to SET/COAST
position and hold. Set cruise ON-OFF (main) switch to ON position. Ensure CRUISE indicator light comes on
and flashes after 3 seconds. Release cruise control switch from SET/COAST position. Activate each switch
circuit in order given. Normal function code will be displayed by CRUISE indicator light, as each circuit is
activated as follows:
SET/COAST Switch
Set cruise control switch to SET/COAST position and hold. If CRUISE control indicator light flashes 2 times
(repeating), indicating a normal Function Code 2, set/coast circuit is okay. Go to next step. If CRUISE control
indicator light does not flash 2 times (repeating), see SYMPTOM DIAGNOSIS
and perform appropriate test
(s).
RES/ACC Switch
Set cruise control switch to RES/ACC position and hold. If CRUISE control indicator light flashes 3 times
(repeating), indicating a normal Function Code 3, RES/ACCEL circuit is okay. Go to next step. If CRUISE
control indicator light does not flash 3 times (repeating), see SYMPTOM DIAGNOSIS
and perform
appropriate test(s).
CANCEL Switches
Observe CRUISE control indicator light and activate each cancel switch. Press CANCEL switch to ON and
OFF positions. Depress and release brake pedal. On A/T models, move shift lever from "D" to "N" position. On of testing. However, a corresponding trouble code may be stored in cruise
control ECU memory. See DIAGNOSTIC PROCEDURE
under SELF-DIAGNOSTIC
SYSTEM.
NOTE: Before performing CRUISE CONTROL FUNCTION TEST, perform DIAGNOSTIC
PROCEDURE under SELF-DIAGNOSTIC SYSTEM. Cruise control function test
should only be performed if no self-diagnostic trouble codes are present.

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
Microsoft
Sunday, November 22, 2009 10:52:01 AMPage 5 © 2005 Mitchell Repair Information Company, LLC.

M/T models, depress and release clutch pedal. On all models, if CRUISE control indicator light comes on when
switch is in OFF position and goes off when switch is in ON position, circuit for that switch being activated is
okay. Go to next step. If CRUISE control indicator does not function as indicated, see SYMPTOM
DIAGNOSIS and perform appropriate test(s).
Vehicle Speed Sensor
1. Raise vehicle and support vehicle with drive wheels off ground. Start engine and slowly depress
accelerator pedal until vehicle speed is 25 MPH or more. Turn cruise ON-OFF switch to ON position. If
CRUISE control indicator light flashes on and off every .25 second, go to next step. If CRUISE control
indicator light does not flash on and off every .25 second, see SYMPTOM DIAGNOSIS
and perform
appropriate test(s).
2. Slow vehicle speed to 25 MPH or less. If CRUISE control indicator light comes on and stays on, vehicle
speed sensor circuit is okay. Go to next step. If CRUISE control indicator light does not come on, see
SYMPTOM DIAGNOSIS
and perform appropriate test(s).
3. Cruise control function test is now complete. No problems are indicated at this time. If cruise control
system still does not function properly and no trouble codes are present, see SYMPTOM DIAGNOSIS

and perform appropriate test(s). Problem may also be intermittent.
SYMPTOM DIAGNOSIS
Symptom diagnosis should only be performed if no Diagnostic Trouble Codes (DTCs) are present. If symptom
is unknown, perform CRUISE CONTROL FUNCTION TEST
to identify problem area. Identify symptom
and perform appropriate test. Perform tests in order listed.
SET Not Occurring Or CANCEL Occurring (No DTCs Present)
Check the following components and/or circuits:
Perform CRUISE CONTROL SWITCH CIRCUIT test under SYSTEM TESTS.
Perform DTC 21: VEHICLE SPEED SENSOR CIRCUIT test under DIAGNOSTIC TESTS.
Perform STOPLIGHT SWITCH CIRCUIT test under SYSTEM TESTS.
Perform PARK/NEUTRAL POSITION SWITCH CIRCUIT test under SYSTEM TESTS.
Perform CLUTCH SWITCH CIRCUIT test under SYSTEM TESTS.
Perform DTC 11 OR DTC 15: ACTUATOR MOTOR CIRCUIT test under DIAGNOSTIC TESTS.
Check actuator control cable adjustment. See ADJUSTMENTS .
Replace cruise control ECU with a known-good ECU and retest. If symptom is no longer present, replace
ECU.
SET Not Occurring Or CANCEL Occurring (DTC Is Not Output)
Check the following components and/or circuits:
Perform CRUISE CONTROL ECU POWER SOURCE CIRCUIT test under SYSTEM TESTS.
Replace cruise control ECU with a known-good ECU and retest. If symptom is no longer present, replace

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
Microsoft
Sunday, November 22, 2009 10:52:01 AMPage 6 © 2005 Mitchell Repair Information Company, LLC.