2001 TOYOTA HIGHLANDER Service Repair Manual

clutch emergency towing drain bolt engine oil capacity engine overheat oil type

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Page 2201 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual Z17005
Fig. 2
Sensor
C
BA
ECU
1
21
22 1
B04722
Fig. 3
Sensor
B2
A
1
21
2
21
C
B1
1
2ECU
Z17007
Fig. 4
Sensor
CBA
1
21
2
2 15V
5V
0V 01-38
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
38 Au

Page 2202 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual Z17008
CSHORT
1
2B
1
21
2 A
Fig. 5
Z17009
Fig. 6
Sensor
C
BA
ECU
1
21
22 1
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01-39
39 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
(2

Page 2203 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual Z17808
Fig. 7
Sensor
B2
A
11 1
C
B1
1ECU
2
222
IN0383
Example
Ground
IN0384
Ground ECU Side
W/H Side
Ground
01-40- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
40 Author: Date:
2005 HIGHLA

Page 2204 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 010QI-01
D25521
A
B
D25520
A
B
C
01-4
- INTRODUCTIONIDENTIFICATION INFORMATION
4 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
IDENTIFICATION INFORMATION
VEHICLE IDENTIFICATION AND SERIAL

Page 2205 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 010QL-02
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01-25
25 Author: Date:
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
A large number of ECU controlled systems are us

010QL-02
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01-25
25 Author: Date:
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
A large number of ECU controlled systems are used in the HIGHLANDER. In general, ECU controlled sys-
tems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. How-
ever, most problem checking procedures only involve inspecting the ECU controlled system's circuits one
by one. An adequate understanding of the system and a basic knowledge of electricity is enough to perform
effective troubleshooting, accurate diagnoses and necessary repairs. Detailed information and trouble-
shooting procedures on major ECU controlled systems in this vehicle are outlined below:
SystemSee Page
1. SFI System (2AZ-FE)05-1
2. SFI System (3MZ-FE)05-362
3. Tire Pressure Warning System05-729
4. ABS with EBD & BA & TRAC & VSC System05-761
5. Electronic Controlled Automatic Transaxle [ECT] (U241E/U140F)05-876
6. Electronic Controlled Automatic Transaxle [ECT] (U151E/U151F)05-986
7. Air Conditioning System05-1 114
8. Supplement Restraint System05-1 194
9. Lighting System05-1526
10. Audio System05-161 1
11. Rear Seat Entertaiment System05-1690
12. Navigation System05-1749
13. Combination Meter05-1868
14. Power Window Control System05-1901
15. Power Door Lock Control System05-1934
16. Wireless Door Lock Control System05-1960
17. Sliding Roof System05-1974
18. Engine Immobiliser System05-1985
19. Theft Deterrent System05-2012
20. Multiplex Communication System05-2040
21. CAN Communication System05-2090
22. Cruise Control System05-2136
FOR USING OBD II SCAN TOOL OR HAND-HELD TESTER
Before using the scan tool or tester, the scan tool's instruction book or tester's operator manual should
be read thoroughly.
If the scan tool or tester cannot communicate with the ECU controlled systems when you have con-
nected the cable of the tester to the DLC3 with the ignition switch and tester turned ON, there is a prob-
lem on the vehicle side or tester side.
(1) If communication is normal when the tester is connected to another vehicle, inspect the diagnosis
data link line (Busline) or ECU power circuit of the vehicle.
(2) If communication is still impossible when the tester is connected to another vehicle, the problem
is probably in the tester itself. So perform the Self Test procedures outlined in the Tester Opera-
tor 's Manual.

Page 2206 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 010QH-01
N17080
Filler Cap
Float
Reservoir Tank
Grommet
Clip
Slotted Spring Pin
: Specified torque
Non-reusable partCylinder
Piston
Push Rod
Washer
Snap Ring
Boot
Gasket
Lock Nut
Clevis Pin
Clev

Page 2207 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual Illustration:
what to do and where
Component part No. Detailed text: how to perform task
Task heading: what you will be doing
Set part No.
INSTALL FRONT AXLE HUB BEARING
D31332
B80366
01-2
- INTRODUCT

Illustration:
what to do and where
Component part No. Detailed text: how to perform task
Task heading: what you will be doing
Set part No.
INSTALL FRONT AXLE HUB BEARING
D31332
B80366
01-2
- INTRODUCTIONHOW TO USE THIS MANUAL
2 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
(c) Torque specifications, grease application areas, and non-reusable parts are emphasized in the proce-
dures.
NOTICE:
There are cases where such information can only be explained by using an illustration. In these
cases, all the information such as torque, oil, etc. are described in the illustration.
(d) The installation procedures are the removal procedures in reverse order. However, only installation
procedures requiring additional information are included.
(e) Only items with key points are described in the text. What to do and other details are placed in illustra-
tions next to the text. Both the text and illustrations are accompanied by standard values and notices.
(f) Illustrations of similar vehicle models are sometimes used. In those cases, specific details may be dif-
ferent from the actual vehicle.
(g) Procedures are presented in a step-by-step format:
(1) The illustration shows what to do and where to do it.
(2) The task heading tells what to do.
(3) The explanation text tells how to perform the task. It also has information such as specifications
and warnings.
Example:
HINT:
This format provides an experienced technician with a FAST TRACK to the necessary information. The task
headings are easy to read and the text below the task heading provides detailed information. Important spec-
ifications and warnings are always written in bold type.
5. SERVICE SPECIFICATIONS
(a) SPECIFICATIONS are presented in bold-faced text throughout the manual. The specifications are
also found in the Service Specifications section for quick reference.
6. TERMS DEFINITION
CAUTIONPossibility of injury to you or other people.
NOTICEPossibility of damage to the components being repaired.
HINTProvides additional information to help you perform repairs.

Page 2208 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual - INTRODUCTIONHOW TO USE THIS MANUAL
01-3
3 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
7. SI UNIT
(a) The units used in this manual comply with the SI UNIT (International System of Unit

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