2001 TOYOTA HIGHLANDER service indicator

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Page 435 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 2005 HIGHLANDER (EWD592U)
120
Headlight with Daytime Running Light
1. Daytime Running Light Operation
The headlight is turned on when all the following conditions are satisfied
*When the ignition swit

Page 483 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 2005 HIGHLANDER (EWD592U)
168
Cruise Control for 3MZ-FE
The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes
it possible to aut

2005 HIGHLANDER (EWD592U)
168
Cruise Control for 3MZ-FE
The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes
it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal.
1. Set Operation
When the ON-OFF SW is turned on, the system starts preparations necessary for the cruise control and turns on the
indicator light in the combination meter.
2. Set Speed Control
When the - SET SW is operated with the ON-OFF SW turned on during travelling, the constant vehicle speed is controlled.
3. Coast Control
When the - SET SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to
decelerate the vehicle. Every time the - SET SW is turned on instantaneously, the vehicle speed is decelerated
approximately 1.5 km/h.
4. Accel Control
When the + RES SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to
accelerate the vehicle. Every time the + RES SW is turned on instantaneously, the vehicle speed is accelerated
approximately 1.5 km/h.
5. Resume Control
When the vehicle speed is within the low speed limit (Approximately 40 km/h, 25 mph) if the cruise control is cancelled, use
of the + RES SW accelerates the vehicle to the speed level used before canceling the cruise control.
6. Manual Cancel Mechanism
If any of the following signals is input during cruise control travelling, the cruise control is cancelled.
*The stop light SW is turned on.
*The CANCEL SW is turned on.
*The ON-OFF SW is turned off.
*Gear is shifted from D position to other positions than D.
7. Auto Cancel Function
If any of the following conditions is encountered, the cruise control is automatically cancelled.
*The stop light SW wiring is faulty or short-circuited.
*The vehicle speed signal is faulty.
*The electronically controlled throttle malfunctions.
8. Overdrive Control Function
The overdrive control may be cancelled if the vehicle travels on the slope during cruise control travelling. After the overdrive
control has been cancelled, when climbing hill is judged to finish from throttle opening information, the vehicle returns to the
overdrive control mode again after the overdrive return timer is completed.
E5 (A), E6 (B), E7 (E), E8 (D), E9 (C) Engine Control Module
(A) 9-Ground : Approx. 12 volts with ignition SW at ON or ST position
(A) 3, (B) 6-Ground : Always approx. 12 volts
(C) 1, (C) 7, (D) 6, (D) 7, (E) 6, (E) 7-Ground : Always continuity
(B)19-Ground : Approx. 12 volts with brake pedal depressed
(B)24-Ground : Continuity with ON-OFF SW at on in cruise control SW
Approx. 1540 W with CANCEL SW on in cruise control SW
Approx. 240 W with + RES SW on in cruise control SW
Approx. 630 W with - SET SW on in cruise control SW
C16 Combination SW
5-4 : Approx. 1540 W with CANCEL SW on
Approx. 240 W with + RES SW on
Approx. 630 W with - SET SW on
System Outline
Service Hints

Page 491 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 2005 HIGHLANDER (EWD592U)
176
Cruise Control for 2AZ-FE
The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes
it possible to aut

2005 HIGHLANDER (EWD592U)
176
Cruise Control for 2AZ-FE
The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes
it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal.
1. Set Operation
When the ON-OFF SW is turned on, the system starts preparations necessary for the cruise control and turns on the
indicator light in the combination meter.
2. Set Speed Control
When the - SET SW is operated with the ON-OFF SW turned on during travelling, the constant vehicle speed is controlled.
3. Coast Control
When the - SET SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to
decelerate the vehicle. Every time the - SET SW is turned on instantaneously, the vehicle speed is decelerated
approximately 1.5 km/h.
4. Accel Control
When the + RES SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to
accelerate the vehicle. Every time the + RES SW is turned on instantaneously, the vehicle speed is accelerated
approximately 1.5 km/h.
5. Resume Control
When the vehicle speed is within the low speed limit (Approximately 40 km/h, 25 mph) if the cruise control is cancelled, use
of the + RES SW accelerates the vehicle to the speed level used before canceling the cruise control.
6. Manual Cancel Mechanism
If any of the following signals is input during cruise control travelling, the cruise control is cancelled.
*The stop light SW is turned on.
*The CANCEL SW is turned on.
*The ON-OFF SW is turned off.
*Gear is shifted from D position to other positions than D.
7. Auto Cancel Function
If any of the following conditions is encountered, the cruise control is automatically cancelled.
*The stop light SW wiring is faulty or short-circuited.
*The vehicle speed signal is faulty.
*The electronically controlled throttle malfunctions.
8. Overdrive Control Function
The overdrive control may be cancelled if the vehicle travels on the slope during cruise control travelling. After the overdrive
control has been cancelled, when climbing hill is judged to finish from throttle opening information, the vehicle returns to the
overdrive control mode again after the overdrive return timer is completed.
E5 (A), E6 (B), E7 (E), E8 (D), E9 (C) Engine Control Module
(A) 9-Ground : Approx. 12 volts with ignition SW at ON or ST position
(A) 1, (B) 6-Ground : Always approx. 12 volts
(C) 1, (C) 7, (D) 6, (D) 7, (E) 6, (E) 7-Ground : Always continuity
(B)19-Ground : Approx. 12 volts with brake pedal depressed
(B)24-Ground : Continuity with ON-OFF SW at on in cruise control SW
Approx. 1540 W with CANCEL SW on in cruise control SW
Approx. 240 W with + RES SW on in cruise control SW
Approx. 630 W with - SET SW on in cruise control SW
C16 Combination SW
5-4 : Approx. 1540 W with CANCEL SW on
Approx. 240 W with + RES SW on
Approx. 630 W with - SET SW on
System Outline
Service Hints

Page 499 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 2005 HIGHLANDER (EWD592U)
184
VSC and Tire Pressure Warning System
1. ABS Operation
If the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the wheel cylinders for all the

2005 HIGHLANDER (EWD592U)
184
VSC and Tire Pressure Warning System
1. ABS Operation
If the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the wheel cylinders for all the four
wheels to automatically avoid wheel locking and ensure the directional and steering stability of the vehicle. If the brake pedal
is depressed suddenly, the skid control ECU with actuator controls the solenoids in the actuators using the signals from the
sensors to move the brake fluid to the reservoir in order to release the braking pressure applied to the wheel cylinder. If the
skid control ECU with actuator detects that the fluid pressure in the wheel cylinder is insufficient, the ECU controls the
solenoids in the actuators to increase the braking pressure.
2. Traction Control Operation
The traction control system controls the engine torque, the hydraulic pressure of the driving wheel cylinders, slipping of the
wheels which may occur at start or acceleration of the vehicle, to ensure an optimal driving power and vehicle stability
corresponding to the road conditions.
3. VSC Operation
Unexpected road conditions, vehicle speed, emergency situation, and any other external factors may cause large under- or
over-steering of the vehicle. If this occurs, the VSC system automatically controls the engine power and wheel brakes to
reduce the under- or over-steering.
To reduce large over-steering :
If the VSC system determines that the over-steering is large, it activates the brakes for the outer front turning wheels
depending on the degree of the over-steering to produce the moment toward the outside of the vehicle and reduce the
over-steering.
To reduce large under-steering :
If the VSC system determines that the under-steering is large, it controls the engine power and activates the rear wheel
brakes to reduce the under-steering.
VSC indicator light
If an mulfunction occurs in the VSC system, the VSC indicator lights up to warn the driver.
4. Mutual System Control
To efficiently operate the VSC system at its optimal level, the VSC system and other control systems are mutually controlled
while the VSC system is being operated.
Engine control
The engine power does not interfere with the VSC brake control by fuel cut controlling and reducing the engine output.
Engine control and electronically controlled transmission control
The strong braking force does not interfere with the braking force control of the VSC system by turning off the accel and
reducing changes in the driving torque at shift-down.
VSC system operation indication
The slip indicator light flashes and the buzzer alarm intermittently to warn the driver that the current road is slippery, while the
VSC system is being operated.
5. Fail Safe Function
If an mulfunction occurs in the skid control ECU with actuator, sensor signals, and/or actuators, the skid control ECU with
actuator inhibits the brake actuator control and inputs the mulfunction signal to the engine control module. According to the
mulfunction signal, the brake actuator turns off the solenoid and the engine control module rejects any electronically
controlled request from the VSC system. As a result, the vehicle functions without the ABS, BA, TRAC, and VSC systems.
A4, A5 ABS Speed Sensor Front LH, RH
1-2 : 1.4-1.8 kW (20°C, 68°F)
A24, A25 ABS Speed Sensor Rear LH, RH
1-2 : 0.9-1.3 kW (25°C, 77°F) (4WD)
1-2 : Max. 1.45 kW (25°C, 77°F) (2WD)
B4 Brake Warning SW
1-2 : Closed with the float down
S27 Skid Control ECU with Actuator
46-Ground : Approx. 12 volts with the ignition SW at ON position
27-Ground : Approx. 12 volts with the stop light SW on (Brake pedal depressed)
31-Ground : Always continuity
S15 Stop Light SW
2-1 : Closed with brake pedal depressed
System Outline
Service Hints

Page 2141 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05 HIGHLANDER_U (L/O 0409)
2005 HIGHLANDER from Nov. 04 Prod. (OM48570U)
Publication No. OM48570U
Part No. 01999-48570
Printed in Japan 01- 0411- 00
Quick index
If a service reminder indicator or w

Page 2148 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 9900X-21
99-4
- MAINTENANCEUNDER HOOD
3784 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
UNDER HOOD
GENERAL MAINTENANCE
1. GENERAL NOTES
Maintenance items may vary from country to countr

9900X-21
99-4
- MAINTENANCEUNDER HOOD
3784 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
UNDER HOOD
GENERAL MAINTENANCE
1. GENERAL NOTES
Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.
Every service item in the periodic maintenance schedule must be performed.
Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).
Maintenance service after the last period should be performed at the same interval as before unless
noted.
Failure to do even one of the items can cause the engine to run poorly and/or increase the exhaust
emissions.
2. WINDSHIELD WASHER FLUID
(a) Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
(a) Check that the coolant level is between the LEVEL lines on the see-through reservoir at normal tem-
perature (20°C (68°F)).
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and not blocked by leaves, dirt or bugs.
(b) Check the hoses for cracks, kinks, rot or loose connections.
5. BATTERY ELECTROLYTE LEVEL
(a) Check the indicator.
(b) Check that the electrolyte level of all the battery cells is between the upper and lower level lines on
the case.
6. BRAKE FLUID LEVEL
(a) Check that the brake fluid levels are near the upper level line on the see-through reservoirs.
7. ENGINE DRIVE BELT
(a) Check the drive belt for fraying, cracks, wear or oiliness.
8. ENGINE OIL LEVEL
(a) Check the level on the dipstick with the engine turned off.
9. POWER STEERING FLUID LEVEL
(a) Check the level on the dipstick.
(b) The level should be in the ºHOTº or ºCOLDº range depending on the fluid temperature.
10. AUTOMATIC TRANSMISSION FLUID LEVEL
(a) Park the vehicle on a level surface.
(b) With the engine idling and the parking brake applied, shift the selector into all the positions from ºPº
to ºLº, and then shift into the ºPº position.
(c) Pull out the dipstick and wipe off the fluid with a clean shop rag. Re-insert the dipstick and check that
the fluid level is in the ºHOTº range.
(d) Perform this check with the fluid at the normal driving temperature (70 to 80°C, 158 to 176°F).
HINT:
Wait until the engine cools down (approx. 30 min.) before checking the fluid level after extended driving at
high speed, in hot weather, in heavy traffic or after pulling a trailer.
11. EXHAUST SYSTEM
(a) Visually inspect for cracks, holes or loose supports.
If any change in the sound of the exhaust or the smell of the exhaust fumes is noticed, locate and correct
the cause.

Page 2232 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual - INTRODUCTIONTERMS
01-47
47 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U) HO2S
Heated Oxygen SensorHeated Oxygen Sensor (HO2S)
IACIdle Air ControlIdle Speed Control (ISC)
IATIntake Air Te

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