Toyota Tundra 2000 2003 User Manual

IN–1

–INTRODUCTION HOW TO USE THIS MANUAL

HOW TO USE THIS MANUAL

IN00U–36

GENERAL INFORMATION

1. INDEX

An INDEX is provided on the first page of each section to guide you to the item to be repaired. To assist you
in finding your way through the manual, the section title and major heading are given at the top of every page.

2. PRECAUTION

At the beginning of each section, a PRECAUTION is given that pertains to all repair operations contained
in that section.
Read these precautions before starting any repair task.

3. TROUBLESHOOTING

TROUBLESHOOTING tables are included for each system to help you diagnose the problem and find the
cause. The fundamentals of how to proceed with troubleshooting are described on page IN–17 .
Be sure to read this before performing troubleshooting.

4. PREPARATION

Preparation lists the SST (Special Service Tools), recommended tools, equipment, lubricant and SSM (Spe­cial Service Materials) which should be prepared before beginning the operation and explains the purpose
of each one.

5. REPAIR PROCEDURES

Most repair operations begin with an overview illustration. It identifies the components and shows how the
parts fit together.
Example:

Slotted Spring Pin

15 (155, 11)

Cylinder

N·m (kgf·cm, ft·lbf)

 Non–reusable part

Filler Cap
Float

Reservoir

: Specified torque

 Grommet

12 (120, 9)

Piston

Washer

Push Rod

 Gasket

Boot

Snap Ring

Clevis Pi n

Clip

Clevis

Lock Nut

N17080

2003 TOYOTA TUNDRA (RM956U)

1Author: Date:

IN–2

–INTRODUCTION HOW TO USE THIS MANUAL

The procedures are presented in a step–by–step format:

 The illustration shows what to do and where to do it.
 The task heading tells what to do.
 The detailed text tells how to perform the task and gives other information such as specifications

and warnings.

Example:

21. CHECK PISTON STROKE OF OVERDRIVE BRAKE

(a)

Place SST and a dial indicator onto the overdrive brake pis­ton as shown in the illustration.

SST 09350–30020 (09350–06120)

Illustration:

what to do and where

(b)

Set part No. Component part No.

Measure the stroke applying and releasing the compressed
air (392  785 kPa, 4  8 kgf/cm2 or 57  114 psi) as shown
in the illustration.

Piston stroke: 1.40  1.70 mm (0.0551  0.0669 in.)

Task heading : what to do

Detailed text : how to do task

Specification

This format provides the experienced technician with a FAST TRACK to the information needed. The upper
case task heading can be read at a glance when necessary , and the text below it provides detailed informa­tion. Important specifications and warnings always stand out in bold type.

6. REFERENCES

References have been kept to a minimum. However, when they are required you are given the page to refer
to.

7. SPECIFICATIONS

Specifications are presented in bold type throughout the text where needed. You never have to leave the
procedure to look up your specifications. They are also found in Service Specifications section for quick ref­erence.

8. CAUTIONS, NOTICES, HINTS:

 CAUTIONS are presented in bold type, and indicate there is a possibility of injury to you or other

people.

 NOTICES are also presented in bold type, and indicate the possibility of damage to the components

being repaired.

 HINTS are separated from the text but do not appear in bold. They provide additional information to

help you perform the repair efficiently.

9. SI UNIT

The UNITS given in this manual are primarily expressed according to the SI UNIT (International System of
Unit), and alternately expressed in the metric system and in the English System.

Example:

Torque: 30 N·m (310 kgf·cm, 22 ft·lbf)

2003 TOYOTA TUNDRA (RM956U)

2Author: Date:

–INTRODUCTION IDENTIFICATION INFORMATION

IN–3

A

5VZ–FE Engine

IDENTIFICATION INFORMATION

IN01P–04

VEHICLE IDENTIFICATION AND
ENGINE SERIAL NUMBER

1. VEHICLE IDENTIFICATION NUMBER

The vehicle identification number is stamped on the vehicle
identification number plate and certification label.

A: Vehicle Identification Number Plate
B: Certification Label

B

B02417

2. ENGINE SERIAL NUMBER

The engine serial number is stamped on the engine block, as
shown in the illustration.

2UZ–FE Engine

2003 TOYOTA TUNDRA (RM956U)

B02418

3Author: Date:

IN–4

–INTRODUCTION REPAIR INSTRUCTIONS

FI1066

REPAIR INSTRUCTIONS

IN0CO–12

GENERAL INFORMATION

BASIC REPAIR HINT

(a) Use fender, seat and floor covers to keep the vehicle

clean and prevent damage.

(b) During disassembly, keep parts in the appropriate order

to facilitate reassembly.

(c) Installation and removal of battery terminal:

(1) Before performing electrical work, disconnect the

negative (–) terminal cable from the battery.

(2) If it is necessary to disconnect the battery for in-

spection or repair, first disconnect the negative (–)
terminal cable.

(3) When disconnecting the terminal cable, to prevent

damage to battery terminal, loosen the cable nut
and raise the cable straight up without twisting or
prying it.

(4) Clean the battery terminals and cable ends with a

clean shop rag. Do not scrape them with a file or oth­er abrasive objects.

(5) Install the cable ends to the battery terminals after

loosening the nut, and tighten the nut after installa­tion. Do not use a hammer to tap the cable ends
onto the terminals.

(6) Be sure the cover for the positive (+) terminal is

properly in place.

(d) Check hose and wiring connectors to make sure that they

are connected securely and correctly.

(e) Non–reusable parts

(1) Always replace cotter pins, gaskets, O–rings, oil

seals, etc. with new ones.

(2) Non–reusable parts are indicated in the component

illustrations by the ”” symbol.

Seal Lock Adhesive

2003 TOYOTA TUNDRA (RM956U)

Z11554

(f) Precoated parts

Precoated parts are bolts, nuts, etc. that are coated with
a seal lock adhesive at the factory.
(1) If a precoated part is retightened, loosened or

caused to move in any way, it must be recoated with
the specified adhesive.

(2) When reusing precoated parts, clean off the old

adhesive and dry with compressed air. Then apply
the specified seal lock adhesive to the bolt, nut or
threads.

4Author: Date:

IN–5

–INTRODUCTION REPAIR INSTRUCTIONS

(3) Precoated parts are indicated in the component il-

lustrations by the ”” symbol.

(g) When necessary, use a sealer on gaskets to prevent

leaks.

(h) Carefully observe all specifications for bolt tightening

torques. Always use a torque wrench.

(i) Use of special service tools (SST) and special service ma-

terials (SSM) may be required, depending on the nature
of the repair. Be sure to use SST and SSM where speci­fied and follow the proper work procedure. A list of SST
and SSM can be found in Preparation section in this
manual.

Medium Current Fuse and High Current Fuse

Equal Amperage Rating

BE1367

(j) When replacing fuses, be sure the new fuse has the cor-

rect amperage rating. DO NOT exceed the rating or use
one with a lower rating.

AbbreviationPart NameSymbolIllustration

FUSE

MEDIUM CURRENT FUSE

HIGH CURRENT FUSE

FUSE

M–FUSE

H–FUSE

2003 TOYOTA TUNDRA (RM956U)

FUSIBLE LINK

CIRCUIT BREAKER

FL

CB

V00076

5Author: Date:

IN–6

–INTRODUCTION REPAIR INSTRUCTIONS

(k) Care must be taken when jacking up and supporting the

vehicle. Be sure to lift and support the vehicle at the prop­er locations (See page IN–8).

 Cancel the parking brake on the level place and

shift the transmission in Neutral (or N position).

 When jacking up the front wheels of the vehicle at

first place stoppers behind the rear wheels.

 When jacking up the rear wheels of the vehicle at

first place stoppers before the front wheels.

 When either the front or rear wheels only should be

jacked up, set rigid racks and place stoppers in front
and behind the other wheels on the ground.

 After the vehicle is jacked up, be sure to support it

on rigid racks . It is extremely dangerous to do any
work on a vehicle raised on a jack alone, even for
a small job that can be finished quickly.

(l) Observe the following precautions to avoid damage to the

following parts:
(1) Do not open the cover or case of the ECU unless

absolutely necessary. (If the IC terminals are
touched, the IC may be destroyed by static electric­ity .)

WRONG CORRECT

WRONG CORRECT

2003 TOYOTA TUNDRA (RM956U)

IN0253

IN0252

(2) To disconnect vacuum hoses, pull off the end, not

the middle of the hose.

(3) To pull apart electrical connectors, pull on the con-

nector itself, not the wires.

(4) Be careful not to drop electrical components, such

as sensors or relays. If they are dropped on a hard
floor, they should be replaced and not reused.

(5) When steam cleaning an engine, protect the elec-

tronic components, air filter and emission–related
components from water.

(6) Never use an impact wrench to remove or install

temperature switches or temperature sensors.

6Author: Date:

IN–7

–INTRODUCTION REPAIR INSTRUCTIONS

(7) When checking continuity at the wire connector, in -

sert the tester probe carefully to prevent terminals
from bending.

(8) When using a vacuum gauge, never force the hose

onto a connector that is too large. Use a step–down
adapter for adjustment. Once the hose has been
stretched, it may leak air.

Example

IN0002

(m) Installation and removal of vacuum hose:

(1) When disconnecting vacuum hoses, use tags to

identify how they should be reconnected to.

(2) After completing a job, double check that the vacu-

um hoses are properly connected. A label under the
hood shows the proper layout.

(n) Unless otherwise stated, all resistance is measured at an

ambient temperature of 20°C (68°F). Because the resis-
tance may be outside specifications if measured at high
temperatures immediately after the vehicle has been run­ning, measurement should be made when the engine has
cooled down.

2003 TOYOTA TUNDRA (RM956U)

7Author: Date:

IN–8

–INTRODUCTION REPAIR INSTRUCTIONS

VEHICLE LIFT AND SUPPORT LOCATIONS

Front

IN0DY–01

JACK POSITION                  

Front          Center of crossmember
Rear          Center of rear axle housing

SUPPORT POSITION

Safety stand                

B07972

2003 TOYOTA TUNDRA (RM956U)

8Author: Date:

–INTRODUCTION FOR ALL OF VEHICLES

IN–9

Negative Cable

BO4111

FOR ALL OF VEHICLES

IN0DB–04

PRECAUTION

1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND
SEAT BELT PRETENSIONER

(a) The TOYOTA TUNDRA is equipped with an SRS (Sup-

plemental Restraint System), such as the driver airbag,
front passenger airbag assembly and seat belt preten­sioner.
Failure to carry out service operations in the correct se­quence could cause the supplemental restraint system to
unexpectedly deploy during servicing, possibly leading to
a serious accident.
Further, i f a mistake is made in servicing the supplemental
restraint system, it is possible the SRS may fail to operate
when required. Before servicing (including removal or
installation of parts, inspection or replacement), be sure
to read the following items carefully, then follow the cor­rect procedure described in this manual.

(b) GENERAL NOTICE

(1) Malfunction symptoms of the supplemental re-

straint system are difficult to confirm, so the diag­nostic trouble codes become the most important
source of information when troubleshooting. When
troubleshooting the supplemental restraint system,
always inspect the diagnostic trouble codes before
disconnecting the battery (See page DI–490).

(2) Work must be started after 90 seconds from the

time the ignition switch is turned to the ”LOCK” posi­tion and the negative (–) terminal cable is discon­nected from the battery.
(The supplemental restraint system is equipped
with a back–up power source so that if work is
started within 90 seconds of disconnecting the neg­ative (–) terminal cable from the battery, the SRS
may deploy.)
When the negative (–) terminal cable is discon­nected from the battery, memory of the clock and
audio systems will be cancelled. So before starting
work, make a record of the contents memorized by
the each memory system. Then when work is fin­ished, reset the clock and audio systems as before.
To avoid erasing the memory of each memory sys­tem, never use a back–up power supply from anoth­er battery.

2003 TOYOTA TUNDRA (RM956U)

9Author: Date:

IN–10

–INTRODUCTION FOR ALL OF VEHICLES

(3) Even in cases of a minor collision where the SRS

does not deploy, the steering wheel pad (See page

RS–12), front passenger airbag assembly (See

page RS–26) and seat belt pretensioner (See page

BO–140) should be inspected.

(4) Never use SRS parts from another vehicle. When

replacing parts, replace them with new parts.

(5) Before repairs, remove the airbag sensor if shocks

are likely to be applied to the sensor during repairs.

(6) Never disassemble and repair the airbag sensor as-

sembly, steering wheel pad, front passenger airbag
assembly or seat belt pretensioner.

(7) If the airbag sensor assembly, steering wheel pad,

front passenger airbag assembly or seat belt pre­tensioner has been dropped, or if there are cracks,
dents or other defects in the case, bracket or con­nector, replace them with new ones.

(8) Do not directly expose the airbag sensor assembly,

steering wheel pad, front passenger airbag assem­bly or seat belt pretensioner to hot air or flames.

(9) Use a volt/ohmmeter with high impedance (10 kΩ/V

minimum) for troubleshooting of the electrical cir­cuit.

(10) Information labels are attached to the periphery of

the SRS components. Follow the instructions on the
notices.

(11) After work on the supplemental restraint system is

completed, check the SRS warning light (See page

DI–490).

Mark

2003 TOYOTA TUNDRA (RM956U)

(c) SPIRAL CABLE (in Combination Switch)

The steering wheel must be fitted correctly to the steering
column with the spiral cable at the neutral position, other­wise cable disconnection and other troubles may result.
Refer to SR–28 concerning correct steering wheel instal­lation.

F04784

10Author: Date:

–INTRODUCTION FOR ALL OF VEHICLES

(d) STEERING WHEEL PAD (with Airbag)

(1) When removing the steering wheel pad or handling

a new steering wheel pad, it should be placed with
the pad top surface facing up.
Storing the pad with its metallic surface upward may
lead to a serious accident if the airbag inflates for
some reason. In addition do not store a steering
wheel pad on top of another one.

(2) Never measure the resistance of the airbag squib.

(This may cause the airbag to deploy, which is very
dangerous.)

(3) Grease should not be applied to the steering wheel

pad and the pad should not be cleaned with deter­gents of any kind.

(4) Store the steering wheel pad where the ambient

temperature remains below 93°C (200°F), without
high humidity and away from electrical noise.

(5) When using electric welding, first disconnect the air-

bag connector (yellow color and 2 pins) under the
steering column near the combination switch con­nector before starting work.

(6) When disposing of a vehicle or the steering wheel

pad alone, the airbag should be deployed using an
SST before disposal (See page RS–14).
Perform the operation in a safe place away from
electrical noise.

IN–11

Example:

F14450

Example:

CORRECT WRONG

B13595

Z13950

2003 TOYOTA TUNDRA (RM956U)

11Author: Date:

IN–12

–INTRODUCTION FOR ALL OF VEHICLES

(e) FRONT PASSENGER AIRBAG ASSEMBLY

(1) Always store a removed or new front passenger air-

bag assembly with the airbag deployment direction
facing up.
Storing the airbag assembly with the airbag deploy­ment direction facing down could cause a serious
accident if the airbag deploys.

(2) Never measure the resistance of the airbag squib.

(This may cause the airbag to deploy, which is very
dangerous.)

(3) Grease should not be applied to the front passen-

ger airbag assembly and the airbag door should not
be cleaned with detergents of any kind.

(4) Store the airbag assembly where the ambient tem-

perature remains below 93°C (200°F), without high
humidity and away from electrical noise.

(5) When using electric welding, first disconnect the air-

bag connector (yellow color and 2 pins) installed on
assembly before starting work.

(6) When disposing of a vehicle or the airbag assembly

alone, the airbag should be deployed using an SST
before disposal (See page RS–27 ).
Perform the operation in a safe place away from
electrical noise.

Example:

CORRECT

Example:

WRONG

B02416

Z13951

2003 TOYOTA TUNDRA (RM956U)

12Author: Date:

–INTRODUCTION FOR ALL OF VEHICLES

(f) SEAT BELT PRETENSIONER

(1) Never measure the resistance of the seat belt pre-

tensioner. (This may cause the seat belt pretension-

er activation which is very dangerous.)
(2) Never disassemble the seat belt pretensioner.
(3) Never install the seat belt pretensioner in another

vehicle.
(4) Store the seat belt pretensioner where the ambient

temperature remains below 80°C (176°F) and

away from electrical noise without high humidity.
(5) When using electric welding, first disconnect the

connector (yellow color and 2 pins) before starting

work.
(6) When disposing of a vehicle or the seat belt preten-

sioner alone, the seat belt pretensioner should be

activated before disposal (See page BO–142). Per-

form the operation in a safe place away from electri-

cal noise.
(7) The seat belt pretensioner is hot after activation, so

let it cool down sufficiently before the disposal.

However never apply water to the seat belt preten-

sioner.

IN–13

Example:

B02121

2003 TOYOTA TUNDRA (RM956U)

13Author: Date:

IN–14

–INTRODUCTION FOR ALL OF VEHICLES

(g) AIRBAG SENSOR ASSEMBLY

(1) Never reuse the airbag sensor assembly involved

in a collision when the SRS has deployed.
(2) The connectors to the airbag sensor assembly

should be connected or disconnected with the sen-

sor mounted on the floor . If the connectors are con-

nected or disconnected while the airbag sensor as-

sembly is not mounted to the floor, it could cause

undesired ignition of the supplemental restraint sys-

tem.
(3) Work must be started after 90 seconds from the

time the ignition switch is turned to the ”LOCK” posi-

tion and the negative (–) terminal cable is discon-

nected from the battery, even if only loosening the

set bolts of the airbag sensor assembly.

(h) WIRE HARNESS AND CONNECTOR

The SRS wire harness is integrated with the cowl wire har­ness assembly and floor wire harness assembly. All the
connectors for the system are also a standard yellow col­or. If the SRS wire harness becomes disconnected or the
connector becomes broken due to an accident, etc., re­pair or replace it.

2003 TOYOTA TUNDRA (RM956U)

14Author: Date:

IN–15

–INTRODUCTION FOR ALL OF VEHICLES

2. FOR VEHICLES EQUIPPED WITH A CATALYTIC CONVERTER
CAUTION:
If large amount of unburned gasoline flows into the converter, it may overheat and create a fire haz­ard. To prevent this, observe the following precautions and explain them to your customer.

(a) Use only unleaded gasoline.
(b) Avoid prolonged idling.

Avoid running the engine at idle speed for more than 20 minutes.

(c) Avoid spark jump test.

(1) Perform spark jump test only when absolutely necessary. Perform this test as rapidly as possible.
(2) While testing, never race the engine.

(d) Avoid prolonged engine compression measurement.

Engine compression tests must be done as rapidly as possible.

(e) Do not run engine when fuel tank is nearly empty.

This may cause the engine to misfire and create an extra load on the converter.
(f) Avoid coasting with ignition turned off.
(g) Do not dispose of used catalyst along with parts contaminated with gasoline or oil.

3. IF VEHICLE IS EQUIPPED WITH MOBILE COMMUNICATION SYSTEM

For vehicles with mobile communication systems such as two–way radios and cellular telephones, observe
the following precautions.

(1) Install the antenna as far as possible away from the ECU and sensors of the vehicle’s electronic

system.

(2) Install the antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the ve-

hicle’s electronic systems. For details about ECU and sensors locations, refer to the section on
the applicable component.

(3) Do not wind the antenna feeder together with the other wiring as much as possible, also avoid

running the antenna feeder parallel with other wire harness.
(4) Check that the antenna and feeder are correctly adjusted.
(5) Do not install powerful mobile communications system.

4. FOR USING OBD II SCAN TOOL OR TOYOTA HAND–HELD TESTER
CAUTION:
Observe the following for safety reasons:

 Before using the OBD II scan tool or TOYOTA hand–held tester, the OBD II scan tool’ s instruc-

tion book or TOYOTA hand–held tester’s operator manual should be read thoroughly.

 Be sure to route all cables securely when driving with the OBD II scan tool or TOYOTA hand–

held tester connected to the vehicle. (i.e. Keep cables away from feet, pedals, steering wheel
and shift lever.)

 Two persons are required when test driving with the OBD II scan tool or TOYOTA hand–held

tester, one person to drive the vehicle and one person to operate the OBD II scan tool or TOYO­TA hand–held tester.

2003 TOYOTA TUNDRA (RM956U)

15Author: Date:

IN–16

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS

IN01T–12

GENERAL INFORMATION

A large number of ECU controlled systems are used in the TOYOTA TUNDRA. In general, the ECU con­trolled system is considered to be a very intricate system requiring a high level of technical knowledge and
expert skill to troubleshoot. However, the fact is that if you proceed to inspect the circuits one by one, trouble­shooting of these systems is not complex. If you have adequate understanding of the system and a basic
knowledge of electricity, accurate diagnosis and necessary repair can be performed to locate and fix the
problem. This manual is designed through emphasis of the above standpoint to help service technicians
perform accurate and effective troubleshooting, and is compiled for the following major ECU controlled sys­tems:
The troubleshooting procedure and how to make use of it are described on the following pages.

System Page

1. Engine (5VZ–FE) DI–1

2. Engine (2UZ–FE) DI–192

3. Automatic Transmission (A340E, A340F) DI–382

4. Anti–Lock Brake System DI–446

5. Supplemental Restraint System DI–488

6. TOYOTA Vehicle Intrusion Protection System DI–592

7. Cruise Control System (5VZ–FE) DI–638

8. Cruise Control System (2UZ–FE) DI–662

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 ECU controlled systems when you have connected

the cable of the scan tool or tester to DLC3, turned the ignition switch ON and operated the scan tool,
there is a problem on the vehicle side or tool side.
(1) If communication is normal when the tool is connected to another vehicle, inspect the diagnosis

data link line (Busline) or ECU power circuit of the vehicle.
(2) If communication is still not possible when the tool is connected to another vehicle, the problem

is probably in the tool itself, so perform the Self Test procedures outline in the Tester Operator’s

Manual.

2003 TOYOTA TUNDRA (RM956U)

16Author: Date:

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

IN–17

IN01U–06

HOW TO PROCEED WITH TROUBLESHOOTING

Carry out troubleshooting in accordance with the procedure on the following page. Here, only the basic pro­cedure is shown. Details are provided in Diagnostics section, showing the most effective methods for each
circuit. Confirm the troubleshooting procedures first for the relevant circuit before beginning troubleshooting
of that circuit.

Vehicle Brought to Workshop

1

1

Customer Problem
Analysis

Ask the customer about the conditions and the
environment when the problem occurred.

2

Symptom Confirmation
and Diagnostic Trouble

3

Symptom Simulation

Code Check

2, 3
Confirm the symptoms and the problem conditions,

and check the diagnostic trouble codes.
(When the problem symptoms do not appear
during confirmation, use the symptom simulation
method described later on.)

4

Diagnostic Trouble
Code Chart

5

Problem Symptoms Table

4, 5, 6
Check the results obtained in Step 2, then confirm

the inspection procedure for the system or the part
which should be checked using the diagnostic

6

Circuit Inspection or Parts

trouble code chart or the problem symptoms table.

Inspection

7

Repair

8

Confirmation Test

End

2003 TOYOTA TUNDRA (RM956U)

7
Check and repair the affected system or part in

accordance with the instructions in Step 6.

8
After completing repairs, confirm that the problem

has been eliminated.
(If the problem is not reproduced, perform the
confirmation test under the same conditions and
in the same environment as when it occurred for
the first time.)

17Author: Date:

IN–18

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

1. CUSTOMER PROBLEM ANALYSIS

In troubleshooting, the problem symptoms must be confirmed accurately and all preconceptions must be
cleared away in order to give an accurate judgment. To ascertain just what the problem symptoms are, it is
extremely important to ask the customer about the problem and the conditions at the time it occurred.
Important Point in the Problem Analysis:
The following 5 items are important points in the problem analysis. Past problems which are thought to be
unrelated and the repair history, etc. may also help in some cases, so as much information as possible should
be gathered and its relationship with the problem symptoms should be correctly ascertained for reference
in troubleshooting. A customer problem analysis table is provided in Diagnostics section for each system
for your use.

Important Points in the Customer Problem Analysis

 What ––––– Vehicle model, system name
 When ––––– Date, time, occurrence frequency
 Where ––––– Road conditions
 Under what conditions? ––––– Running conditions, driving conditions, weather conditions

 How did it happen? ––––– Problem symptoms

(Sample) Engine control system check sheet.

CUSTOMER PROBLEM ANALYSIS CHECK

ENGINE CONTROL SYSTEM Check Sheet

Customer’s Name

Driver’s Name
Data Vehicle

Brought in

License No.

Engine does
not Start

Difficult to
Start

Poor Idling

Poor
Drive ability

Problem Symptoms

Engine Stall

Engine does not crank No initial combustion No complete combustion

Engine cranks slowly
Other

Incorrect first idle Idling rpm is abnormal High ( rpm) Low ( rpm)
Rough idling Other

Hesitation Back fire Muffler explosion (after–fire) Surging
Knocking Other

Soon after starting After accelerator pedal depressed
After accelerator pedal released During A/C operation
Shifting from N to D Other

Inspector’s
Name

Model and Model
Year

Frame No.

Engine Model

Odometer Reading

km
miles

Others

Data Problem

2003 TOYOTA TUNDRA (RM956U)

Constant Sometimes ( times per day/month)

18Author: Date:

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

IN–19

2. SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE CHECK

The diagnostic system in the TOYOTA TUNDRA fulfills various functions. The first function is the Diagnostic
Trouble Code Check in which a malfunction in the signal circuits to the ECU is stored in code in the ECU
memory at the time of occurrence, to be output by the technician during troubleshooting. Another function
is the Input Signal Check which checks if the signals from various switches are sent to the ECU correctly.
By using these check functions, the problem areas can be narrowed down quickly and troubleshooting can
be performed effectively. Diagnostic functions are incorporated in the following systems in the TOYOTA
TUNDRA.

System

1. Engine (5VZ–FE) 

2. Engine (2UZ–FE) 

3. Automatic Transmission

4. Anti–Lock Brake System  

5. Supplemental Restraint System 

6. Cruise Control System (5VZ–FE) 

7. Cruise Control System (2UZ–FE)  

Diagnostic Trouble

Code Check

(with Check Mode)

(with Check Mode)



(with Check Mode)

Input Signal Check

(Sensor Check)

 

 



Diagnostic Test

Mode (Active Test)

In diagnostic trouble code check, it is very important to determine whether the problem indicated by the diag­nostic trouble code is still occurring or occurred in the past but returned to normal at present. In addition,
it must be checked in the problem symptom check whether the malfunction indicated by the diagnostic
trouble code is directly related to the problem symptom or not. For this reason, the diagnostic trouble codes
should be checked before and after the symptom confirmation to determine the current conditions, as shown
in the table below. If this is not done, it may, depending on the case, result in unnecessary troubleshooting
for normally operating systems, thus making it more difficult to locate the problem, or in repairs not pertinent
to the problem. Therefore, always follow the procedure in correct order and perform the diagnostic trouble
code check.

DIAGNOSTIC TROUBLE CODE CHECK PROCEDURE

Diagnostic Trouble
Code Check (Make a
note of and then clear)

Diagnostic Trouble
Code Display

Confirmation
of Symptoms

Problem symptoms
exist

Diagnostic Trouble
Code Check

Same diagnostic
trouble code is
displayed

Normal code is
displayed

No problem
symptoms exist

Normal Code Display

2003 TOYOTA TUNDRA (RM956U)

Problem symptoms
exist

No problem
symptoms exist

Normal code is
displayed

Normal code is
displayed

Problem Condition

Problem is still occurring in the diagnostic
circuit

The problem is still occurring in a place
other than in the diagnostic circuit
(The diagnostic trouble code displayed
first is either for a past problem or it is a
secondary problem)

The problem occurred in the diagnostic
circuit in the past

The problem is still occurring in a place
other than in the diagnostic circuit

The problem occurred in a place other
than in the diagnostic circuit in the past

19Author: Date:

IN–20

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

Taking into account the points on the previous page, a flow chart showing how to proceed with troubleshoot­ing using the diagnostic trouble code check is shown below . This flow chart shows how to utilize the diagnos­tic trouble code check effectively, then by carefully checking the results, indicates how to proceed either to
diagnostic trouble code troubleshooting or to troubleshooting of problem symptoms table.

Diagnostic trouble code check

Making a note of and clearing of the diagnostic trouble codes displayed

Symptom confirmation

Problem symptoms
exist

Simulation test using the symptom
simulation methods

No problem symptoms
exist

 Diagnostic trouble code displayed
 Problem symptoms exist

Troubleshooting of problem indicated
by diagnostic trouble code

Diagnostic trouble code check

 Normal code displayed
 Problem symptoms exist

Troubleshooting of each
problem symptom

 Normal code displayed
 No problem symptoms exist

System Normal

If a diagnostic trouble code was
displayed in the initial diagnostic
trouble code check, it indicates
that the trouble may have occurred
in a wire harness or connector in
that circuit in the past. Therefore,
check the wire harness and con­nectors (See page IN–27).

2003 TOYOTA TUNDRA (RM956U)

20Author: Date:

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

IN–21

3. SYMPTOM SIMULATION

The most difficult case in troubleshooting is when there are no problem symptoms occurring. In such cases,
a thorough customer problem analysis must be carried out, then simulate the same or similar conditions and
environment in which the problem occurred in the customer ’s vehicle. No matter how much experience a
technician has, or how skilled he may be, if he proceeds to troubleshoot without confirming the problem
symptoms he will tend to overlook something important in the repair operation and make a wrong guess
somewhere, which will only lead to a standstill. For example, for a problem which only occurs when the en­gine is cold, or for a problem which occurs due to vibration caused by the road during driving, etc., the prob­lem can never be determined so long as the symptoms are confirmed with the engine hot condition or the
vehicle at a standstill. Since vibration, heat or water penetration (moisture) is likely cause for problem which
is difficult to reproduce, the symptom simulation tests introduced here are effective measures in that the ex­ternal causes are applied to the vehicle in a stopped condition.
Important Points in the Symptom Simulation Test:
In the symptom simulation test, the problem symptoms should of course be confirmed, but the problem area
or parts must also be found out. To do this, narrow down the possible problem circuits according to the symp­toms before starting this test and connect a tester beforehand. After that, carry out the symptom simulation
test, judging whether the circuit being tested is defective or normal and also confirming the problem symp­toms at the same time. Refer to the problem symptoms table for each system to narrow down the possible
causes of the symptom.

VIBRATION METHOD: When vibration seems to be the major cause.

1

CONNECTORS

Slightly shake the connector vertically and horizontally.

WIRE HARNESS

Slightly shake the wire harness vertically and horizontally.
The connector joint, fulcrum of the vibration, and body
through portion are the major areas to be checked thorough­ly.

PARTS AND SENSOR

Apply slight vibration with a finger to the part of the sensor
considered to be the problem cause and check that the mal­function occurs.

HINT:
Applying strong vibration to relays may result in open relays.

Shake Slightly

Swing Slightly

Vibrate Slightly

2003 TOYOTA TUNDRA (RM956U)

V07268

21Author: Date:

IN–22

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

HEAT METHOD: When the problem seems to occur when the suspect area is heated.2

Heat the component that is the likely cause of the malfunction
with a hair dryer or similar object. Check to see if the malfunction
occurs.

NOTICE:

(1)

Do not heat to more than 60°C (140°F). (Temperature
is limited not to damage the components.)

(2)

Do not apply heat directly to parts in the ECU.

SYSTEMS

Malfunc­tion

3 WATER SPRINKLING METHOD:

When the malfunction seems to occur on a rainy day or in a
high–humidity condition.

Sprinkle water onto the vehicle and check to see if the malfunc­tion occurs.

NOTICE:
(1)

Never sprinkle water directly into the engine compart­ment, but indirectly change the temperature and hu­midity by applying water spray onto the radiator front
surface.

(2)

Never apply water directly onto the electronic compo­nents.

HINT:
If a vehicle is subject to water leakage, the leaked water may
contaminate the ECU. When testing a vehicle with a water leak­age problem, special caution must be taken.

4 OTHER: When a malfunction seems to occur when electrical load is excessive.

Turn on all electrical loads including the heater blower, head

ON

lights, rear window defogger, etc. and check to see if the mal­function occurs.

2003 TOYOTA TUNDRA (RM956U)

B02389

B02390

22Author: Date:

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

IN–23

4. DIAGNOSTIC TROUBLE CODE CHART

The inspection procedure is shown in the table below. This tab le p er mit s e fficient and accurate troubleshoot­ing using the diagnostic trouble codes displayed in the diagnostic trouble code check. Proceed with trouble­shooting in accordance with the inspection procedure given in the diagnostic chart corresponding to the
diagnostic trouble codes displayed. The engine diagnostic trouble code chart is shown below as an example.

 DTC No.
Indicates the diagnostic trouble code.
 Page or Instructions
Indicates the page where the inspection procedure
for each circuit is to be found, or gives instructions
for checking and repairs.

 Trouble Area
Indicates the suspect area of the
problem.

 Detection Item
Indicates the system of the problem or
contents of the problem.

DIAGNOSTIC TROUBLE CODE CHART

HINT:
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument or other
factors.

If a malfunction code is displayed during the DTC check mode, check the circuit for the code listed in the table
below. For details of each code, turn to the page referred to under the ”See page” for the respective ”DTC No.”
in the DTC chart.

SAE CONTROLLED

DTC No.
(See page)

P0100
(DI–24)

P0101
(DI–28)

P0110
(DI–29)

P0115
(DI–33)

P0116
(DI–37)

Mass Air Flow Circuit Malfunction

Mass Air Flow Circuit
Range/ Performance Problem

Intake Air Temp. Circuit
Malfunction

Engine Coolant Temp.
Circuit Malfunction

Engine Coolant Temp.
Circuit Range/ Performance Problem

Detection Item

Trouble Area MIL* Memory

 Open or short in mass air flow meter circuit
 Mass air flow meter
 ECM

 Mass air flow meter

 Open or short in intake air temp. sensor

circuit

 Intake air temp. sensor
 ECM

 Open or short in engine coolant temp. sensor circuit
 Engine coolant temp. sensor
 ECM

 Engine coolant temp. sensor
 Cooling system

Throttle/ Pedal Position Sensor/Switch
”A” Circuit Malfunction

Throttle/ Pedal Position Sensor/ Switch
”A” Circuit Range / Performance Prob­lem

2003 TOYOTA TUNDRA (RM956U)

 Open or short in throttle position sensor circuit
 Throttle position sensor
 ECM

 Throttle position sensor

23Author: Date:

IN–24

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

5. PROBLEM SYMPTOMS TABLE

The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to
troubleshoot the problem when a ”Normal” code is displayed in the diagnostic trouble code check but the
problem is still occurring. Numbers in the table indicate the inspection order in which the circuits or parts
should be checked.
HINT:
When the problem is not detected by the diagnostic system even though the problem symptom is present,
it is considered that the problem is occurring outside the detection range of the diagnostic system, or that
the problem is occurring in a system other than the diagnostic system.

 Page
Indicates the page where the flow chart for each circuit
is located.

 Circuit Inspection, Inspection Order
Indicates the circuit which needs to be checked for each problem
symptom. Check in the order indicated by the numbers.

 Problem Symptom

PROBLEM SYMPTOMS TABLE

Symptom

Engine does not crank (Does not start)

No initial combustion (Does not start)

No complete combustion (Does not start)

Engine cranks normally (Difficult to start)

Cold engine (Difficult to start)

Hot engine

 Circuit or Part Name
Indicates the circuit or part which needs to be checked.

Suspected Area

1. Starter and starter relay

1. ECM power source circuit

2. Fuel pump control circuit

3. ECM

1. Fuel pump control circuit

1. Starter signal circuit

2. Fuel pump control circuit

3. Compression

1. Starter signal circuit

2. Fuel pump control circuit

1. Starter signal circuit

2. Fuel pump control circuit

See page

ST–2
ST–17

DI–147
DI–151
IN–29

DI–151
DI–144

DI–151
EM–3

DI–144
DI–151

DI–144
DI–151

High engine idle speed (Poor idling)

idling)

2003 TOYOTA TUNDRA (RM956U)

1. A/C signal circuit (Compressor circuit)

2. ECM power source circuit

1. A/C signal circuit

2. Fuel pump control circuit

1. Compression

2. Fuel pump control circuit

AC–88

24Author: Date:

6. CIRCUIT INSPECTION

How to read and use each page is shown below.

 Diagnostic Trouble Code No. and Detection Item

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

 Circuit Description
The major role and operation, etc. of the circuit
and its component parts are explained.

IN–25

DTC P0325

Knock Sensor 1 Circuit Malfunction

CIRCUIT DESCRIPTION

Knock sensor is fitted to the cylinder block to detect engine knocking. This sensor contains a piezoelectric element which
generates a voltage when it becomes deformed, which occurs when the cylinder block vibrates due to knocking. If engine
knocking occurs, ignition timing is retarded to suppress it.

DTC No. DTC Detection Condition Trouble Area

P0325

If the ECM detects the above diagnosis conditions, it operates the fall safe function in which the corrective retard angle
value is set to the maximum value.

No knock sensor 1 signal to ECM with engine speed,
1,200 rpm or more.

 Open or short in knock sensor1 circuit
 Knock sensor 1 (looseness)
 ECM

 Indicates the diagnostic trouble code, diagnostic

trouble code set parameter and suspect area of
the problem.

WIRING DIAGRAM



Wiring Diagram
This shows a wiring diagram of the circuit.
Use this diagram together with ELECTRICAL
WIRING DIAGRAM to thoroughly understand the
circuit.
Wire colors are indicated by an alphabetical code.
B = Black, L = Blue, R = Red, BR = Brown,
LG = Light Green, V = Violet, G = Green,

Knock Sensor 1

GR

ECM

12

KNK

E6

E1

O = Orange, W = White, GR = Gray, P = Pink,
Y = Yellow, SB = Sky Blue
The first letter indicates the basic wire color and
the second letter indicates the color of the stripe.

2003 TOYOTA TUNDRA (RM956U)

V08423

25Author: Date:

IN–26

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

 Indicates the position of the ignition switch during the check.

LOCK

Ignition Switch LOCK (OFF)

START

Ignition Switch START

ON

Ignition Switch ON

ACC

Ignition Switch ACC

INSPECTION PROCEDURE

1 Check continuity between terminal KNK of ECM connector and body ground.

LOCK

AB0117
A00265

KNK

E6 Connector

PREPARATION:

(a) Remove the glove compartment (See page SF–68).
(b) Disconnect the E6 connector from the ECM.

CHECK:

Measure the resistance between terminal KNK of the ECM connec­tor and body ground.

OK:

A00255

Resistance: 1 MΩ or higher

OK

Go to step 3.



Inspection Procedure
Use the inspection procedure to determine if
the circuit is normal or abnormal, and, if it is
abnormal, use it to determine whether the
problem is located in the sensors, actuators,
wire harness or ECU.

NG

2

Check knock sensor (See page SF–61).

OK

Replace knock sensor.

 Indicates the place to check the voltage or resistance.
 Indicates the connector position to checked, from the front or back side.

Wire Harness

Check from the connector back side.
(with harness)

Check from the connector front side. (without harness)
In this case, care must be taken not to bend the terminals.

 Indicates the condition of the connector of ECU during the check.

KNK

KNK

Connector being checked is connected.

2003 TOYOTA TUNDRA (RM956U)

E6 Connector

E6 Connector

Connector being checked is disconnected.

V08425

26Author: Date:

FI0046

FI0047

FI0048

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

IN–27

IN05X–13

HOW TO USE THE DIAGNOSTIC
CHART AND INSPECTION
PROCEDURE

1. CONNECTOR CONNECTION AND TERMINAL IN­SPECTION

 For troubleshooting, diagnostic trouble code charts or

problem symptom table are provided for each circuit with
detailed inspection procedures on the following pages.

 When all the component parts, wire harnesses and con-

nectors of each circuit except the ECU are found to be
normal in troubleshooting, then it is determined that the
problem is in the ECU. Accordingly, if diagnosis is per­formed without the problem symptoms occurring, refer to
Step 8 to replace the ECU. So always confirm that the
problem symptoms are occurring, or proceed with inspec­tion while using the symptom simulation method.

 The instructions ”Check wire harness and connector” and

”Check and replace ECU” which appear in the inspection
procedure, are common and applicable to all diagnostic
trouble codes. Follow the procedure outlined below
whenever these instructions appear.

OPEN CIRCUIT:
This could be due to a disconnected wire harness, faulty con­tact in the connector, a connector terminal pulled out, etc.
HINT:

 It is rarely the case that a wire is broken in the middle of

it. Most cases occur at the connector. In particular, care­fully check the connectors of sensors and actuators

 Faulty contact could be due to rusting of the connector

terminals, to foreign materials entering terminals or a de­formation of connector terminals. Simply disconnecting
and reconnecting the connectors once changes the
condition of the connection and may result in a return to
normal operation. Therefore, in troubleshooting, if no ab­normality is found in the wire harness and connector
check, but the problem disappears after the check, then
the cause is considered to be in the wire harness or con­nectors.

SHORT CIRCUIT:
This could be due to a contact between wire harness and the
body ground or to a short circuit occurred inside the switch, etc.
HINT:
When there is a short circuit between the wire harness and body
ground, check thoroughly whether the wire harness is caught
in the body or is clamped properly.

2003 TOYOTA TUNDRA (RM956U)

27Author: Date:

IN–28

FI7187

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

2. CONNECTOR HANDLING

When inserting tester probes into a connector, insert them from
the rear of the connector . When necessary, use mini test leads.
For water resistant connectors which cannot be accessed from
behind, take good care not to deform the connector terminals.

Sensor Side

Sensor Side

Sensor Side

ECU Side

ECU Side

ECU Side

IN0379

IN0378

IN0380

3. CONTINUITY CHECK (OPEN CIRCUIT CHECK)

(a) Disconnect the connectors at both ECU and sensor

sides.

(b) Measure the resistance between the applicable terminals

of the connectors.

Resistance: 1 Ω or less

HINT:
Measure the resistance while lightly shaking the wire harness
vertically and horizontally.

4. RESISTANCE CHECK (SHORT CIRCUIT CHECK)

(a) Disconnect the connectors on both ends.
(b) Measure the resistance between the applicable terminals

of the connectors and body ground. Be sure to carry out
this check on the connectors on both ends.

Resistance: 1 MΩ or higher

HINT:
Measure the resistance while lightly shaking the wire harness
vertically and horizontally.

Looseness of Crimping

2003 TOYOTA TUNDRA (RM956U)

Pull Lightly

IN0381

5. VISUAL CHECK AND CONTACT PRESSURE CHECK

(a) Disconnect the connectors at both ends.
(b) Check for rust or foreign material, etc. in the terminals of

the connectors.

(c) Check crimped portions for looseness or damage and

check that the terminals are secured in lock portion.

HINT:
The terminals should not come out when pulled lightly from the
back.

28Author: Date:

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

IN–29

(d) Prepare a test male terminal and insert it in the female ter-

minal, then pull it out.

NOTICE:
When testing a gold–plated female terminal, always use a
gold–plated male terminal.

HINT:
When the test terminal is pulled out more easily than others,
there may be poor contact in that section.

Fig. 1

Sensor

Fig. 2

Sensor

ECU

OPEN

22 2

C

1

2

2

B

1 1
22

ABC

1111

Z17004

ECU

A

Z17005

6. CHECK OPEN CIRCUIT

For the open circuit in the wire harness in Fig. 1, perform ”(a)
Continuity Check” or ”(b) Voltage Check” to locate the section.

(a) Check the continuity.

(1) Disconnect connectors ”A” and ”C” and measure

the resistance between them.
In the case of Fig. 2:
Between terminal 1 of connector ”A” and terminal 1
of connector ”C” → No continuity (open)
Between terminal 2 of connector ”A” and terminal 2
of connector ”C” → Continuity
Therefore, it is found out that there is an open circuit
between terminal 1 of connector ”A” and terminal 1
of connector ”C”.

Fig. 3

Sensor

1

C

1

1

2

2003 TOYOTA TUNDRA (RM956U)

2

B1B2
1221

(2) Disconnect connector ”B” and measure the resis-

tance between the connectors.

ECU

In the case of Fig. 3:
Between terminal 1 of connector ”A” and terminal 1
of connector ”B1” → Continuity

A

Between terminal 1 of connector ”B2” and terminal
1 of connector ”C” → No continuity (open)
Therefore, it is found out that there is an open circuit

B04722

between terminal 1 of connector ”B2” and terminal
1 of connector ”C”.

29Author: Date:

IN–30

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

Fig. 4

Sensor

Fig. 5

1

0V

C

2

(b) Check the voltage.

In a circuit in which voltage is applied (to the ECU connec­tor terminal), an open circuit can be checked for by con-

5V

A

1

2

1 1

22

B

5V

5V

ducting a voltage check.

As shown in Fig. 4, with each connector still con­nected, measure the voltage between body ground
and terminal 1 of connector ”A” at the ECU 5V out­put terminal, terminal 1 of connector ”B”, and termi-

Z17007

nal 1 of connector ”C”, in that order.
If the results are:
5V: Between Terminal 1 of connector ”A” and Body Ground
5V: Between Terminal 1 of connector ”B” and Body Ground
0V: Between Terminal 1 of connector ”C” and Body Ground
Then it is found out that there is an open circuit in the wire har­ness between terminal 1 of ”B” and terminal 1 of ”C”.

7. CHECK SHORT CIRCUIT

If the wire harness is ground shorted as in Fig. 5, locate the sec-

BSHORT

1 1

2

AC

2

tion by conducting a ”continuity check with ground”.

Fig. 6

Sensor

Z17008

Check the continuity with ground.

(1) Disconnect connectors ”A” and ”C” and measure

the resistance between terminal 1 and 2 of connec-

ECU

B

1

2

AC

1 1

22

tor ”A” and body ground.

In the case of Fig. 6:

Between terminal 1 of connector ”A” and body

ground → Continuity (short)

Between terminal 2 of connector ”A” and body

Z17009

ground → No continuity

Therefore, it is found out that there is a short circuit

between terminal 1 of connector ”A” and terminal 1

of connector ”C”.

2003 TOYOTA TUNDRA (RM956U)

30Author: Date:

–INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED

SYSTEMS

IN–31

Fig. 7

Sensor

Example

Ground

(2) Disconnect connector ”B” and measure the resis-

tance between terminal 1 of connector ”A” and body

ground, and terminal 1 of connector ”B2” and body

ground.

B2

1

1

2

2

B1C

1 1

22

ECU

A

In the case of Fig. 7:

Between terminal 1 of connector ”A” and body

ground → No continuity

Between terminal 1 of connector ”B2” and body

Z17808

ground → Continuity (short)

Therefore, it is found out that there is a short circuit

between terminal 1 of connector ”B2” and terminal

1 of connector ”C”.

8. CHECK AND REPLACE ECU

First check the ECU ground circuit. If it is faulty, repair it. If it is
normal, the ECU could be faulty, so replace the ECU with a nor­mal functioning one and check that the symptoms appear.

(1) Measure the resistance between the ECU ground

terminal and the body ground.

Resistance: 1 Ω or less

ECU Side

W/H Side

Ground

IN0383

(2) Disconnect the ECU connector, check the ground

terminals on the ECU side and the wire harness

side for bend and check the contact pressure.

Ground

IN0384

2003 TOYOTA TUNDRA (RM956U)

31Author: Date:

IN–32

–INTRODUCTION TERMS

TERMS

ABBREVIATIONS USED IN THIS MANUAL

Abbreviations Meaning
ABS Anti–Lock Brake System
AC Alternating Current
ACC Accessory
ACIS Acoustic Control Induction System
ACSD Automatic Cold Start Device
A.D.D. Automatic Disconnecting Differential
A/F Air–Fuel Ratio
AHC Active Height Control Suspension
ALR Automatic Locking Retractor
ALT Alternator
AMP Amplifier
ANT Antenna
APPROX. Approximately
A/T Automatic Transmission (Transaxle)
ATF Automatic Transmission Fluid
AUTO Automatic
AUX Auxiliary
AVG Average
AVS Adaptive Variable Suspension
BA Brake Assist
BACS Boost Altitude Compensation System
BAT Battery
BDC Bottom Dead Center
B/L Bi–Level
B/S Bore–Stroke Ratio
BTDC Before Top Dead Center
BVSV Bimetallic Vacuum Switching Valve
Calif. California
CB Circuit Breaker
CCo Catalytic Converter For Oxidation
CD Compact Disc
CF Cornering Force
CG Center Of Gravity
CH Channel
COMB. Combination
CPE Coupe
CPS Combustion Pressure Sensor
CPU Central Processing Unit
CRS Child Restraint System
CTR Center
C/V Check Valve
CV Control Valve

2003 TOYOTA TUNDRA (RM956U)

IN04Q–07

32Author: Date:

–INTRODUCTION TERMS

CW Curb Weight
DC Direct Current
DEF Defogger
DFL Deflector
DIFF. Differential
DIFF. LOCK Differential Lock
D/INJ Direct Injection
DLI Distributorless Ignition
DOHC Double Over Head Cam
DP Dash Pot
DS Dead Soak
DSP Digital Signal Processor
EBD Electronic Brake Force Distribution
ECAM Engine Control And Measurement System
ECD Electronic Controlled Diesel
ECDY Eddy Current Dynamometer
ECU Electronic Control Unit
ED Electro–Deposited Coating
EDIC Electric Diesel Injection Control
EDU Electronic Driving Unit
EFI Electronic Fuel Injection
E/G Engine
EGR–VM Exhaust Gas Recirculation–Vacuum Modulator
ELR Emergency Locking Retractor
ENG Engine
ESA Electronic Spark Advance
ETCS Electronic Throttle Control System
EVP Evaporator
E–VRV Electric Vacuum Regulating Valve
EXH Exhaust
FE Fuel Economy
FF Front–Engine Front–Wheel–Drive
F/G Fuel Gage
FIPG Formed In Place Gasket
FL Fusible Link
F/P Fuel Pump
FPU Fuel Pressure Up
Fr Front
FR Front–Engine Rear–Wheel–Drive
F/W Flywheel
FW/D Flywheel Damper
FWD Front–Wheel–Drive
GAS Gasoline
GSA Gear Shift Actuator
GND Ground
HAC High Altitude Compensator

2003 TOYOTA TUNDRA (RM956U)

IN–33

33Author: Date:

IN–34

–INTRODUCTION TERMS

H/B Hatchback
H–FUSE High Current Fuse
HI High
HID High Intensity Discharge (Head Lamp)
HPU Hydraulic Power Unit
HSG Housing
HT Hard Top
HWS Heated Windshield System
IAC Idle Air Control
IC Integrated circuit
IDI Indirect Diesel Injection
IFS Independent Front Suspension
IG Ignition
IIA Integrated Ignition Assembly
IN Intake (Manifold, Valve)
INT Intermittent
I/P Instrument Panel
IRS Independent Rear Suspension
J/B Junction Block
J/C Junction Connector
KD Kick–Down
LAN Local Area Network
LB Liftback
LCD Liquid Crystal Display
LED Light Emitting Diode
LH Left–Hand
LHD Left–Hand Drive
L/H/W Length, Height, Width
LLC Long–Life Coolant
LNG Liquified Natural Gas
LO Low
LPG Liquified Petroleum Gas
LSD Limited Slip Differential
LSP & PV Load Sensing Proportioning And Bypass Valve
LSPV Load Sensing Proportioning Valve
MAX. Maximum
M–FUSE Medium Current Fuse
MIC Microphone
MIL Malfunction Indicator Lamp
MIN. Minimum
MP Multipurpose
MPX Multiplex Communication System
M/T Manual Transmission (T ransaxle)
MT Mount
MTG Mounting
N Neutral

2003 TOYOTA TUNDRA (RM956U)

34Author: Date:

–INTRODUCTION TERMS

NA Natural Aspiration
No. Number
O/D Overdrive
OEM Original Equipment Manufacturing
OHC Overhead Camshaft
OHV Overhead Valve
OPT Option
O/S Oversize
P & BV Proportioning And Bypass Valve
PCS Power Control System
PCV Positive Crankcase Ventilation
PKB Parking Brake
PPS Progressive Power Steering
PS Power Steering
PTO Power Take–Off
R & P Rack And Pinion
R/B Relay Block
RBS Recirculating Ball Type Steering
R/F Reinforcement
RFS Rigid Front Suspension
RH Right–Hand
RHD Right–Hand Drive
RLY Relay
ROM Read Only Memory
Rr Rear
RR Rear–Engine Rear–Wheel Drive
RRS Rigid Rear Suspension
RWD Rear–Wheel Drive
SDN Sedan
SEN Sensor
SICS Starting Injection Control System
SMT Sequential Manual Transmission
SOC State Of Charge
SOHC Single Overhead Camshaft
SPEC Specification
SPI Single Point Injection
SRS Supplemental Restraint System
SSM Special Service Materials
SST Special Service Tools
STD Standard
STJ Cold–Start Fuel Injection
SW Switch
SYS System
T/A Transaxle
TACH Tachometer
TBI Throttle Body Electronic Fuel Injection

2003 TOYOTA TUNDRA (RM956U)

IN–35

35Author: Date:

IN–36

–INTRODUCTION TERMS

TC Turbocharger
TCCS TOYOTA Computer–Controlled System
TCV Timing Control V alve
TDC Top Dead Center
TEMP. Temperature
TEMS TOYOTA Electronic Modulated Suspension
TIS Total Information System For V ehicle Development
T/M Transmission
TMC TOYOTA Motor Corporation
TMMK TOYOTA Motor Manufacturing Kentucky, Inc.
TRAC Traction Control System
TURBO Turbocharge
U/D Underdrive
U/S Undersize
VCV Vacuum Control Valve
VENT Ventilator
VIN Vehicle Identification Number
VPS Variable Power Steering
VSC Vehicle Skid Control
VSV Vacuum Switching Valve
VTV Vacuum Transmitting V alve
w/ With
WGN Wagon
W/H Wire Harness
w/o Without
1st First
2nd Second
2WD Two Wheel Drive Vehicle (4x2)
4WD Four Wheel Drive Vehicle (4x4)

2003 TOYOTA TUNDRA (RM956U)

36Author: Date:

IN–37

–INTRODUCTION TERMS

IN0CI–02

GLOSSARY OF SAE AND TOYOTA TERMS

This glossary lists all SAE–J1930 terms and abbreviations used in this manual in compliance with SAE rec­ommendations, as well as their TOYOTA equivalents.

SAE

ABBREVIATIONS
A/C Air Conditioning Air Conditioner
ACL Air Cleaner Air Cleaner, A/CL
AIR Secondary Air Injection Air Injection (AI)
AP Accelerator Pedal –
B+ Battery Positive Voltage +B, Battery Voltage
BARO Barometric Pressure HAC
CAC Charge Air Cooler Intercooler
CARB Carburetor Carburetor
CFI Continuous Fuel Injection –
CKP Crankshaft Position Crank Angle
CL Closed Loop Closed Loop
CMP Camshaft Position Cam Angle
CPP Clutch Pedal Position –
CTOX Continuous Trap Oxidizer –
CTP Closed Throttle Position LL ON, Idle ON
DFI Direct Fuel Injection (Diesel) Direct Injection (DI)
DI Distributor Ignition –
DLC1

DLC2
DLC3

DTC Diagnostic Trouble Code Diagnostic Code
DTM Diagnostic Test Mode –
ECL Engine Control Level –
ECM Engine Control Module Engine ECU (Electronic Control Unit)
ECT Engine Coolan t Temperature Coolant Temperature, Water Temperature (THW)

EEPROM Electrically Erasable Programmable Read Only Memory

EFE Early Fuel Evaporation Cold Mixture Heater (CMH), Heat Control Valve (HCV)
EGR Exhaust Gas Recirculation Exhaust Gas Recirculation (EGR)
EI Electronic Ignition TOYOTA Distributor–less Ignition (TDI)
EM Engine Modification Engine Modification (EM)
EPROM Erasable Programmable Read Only Memory Programmable Read Only Memory (PROM)
EVAP Evaporative Emission Evaporative Emission Control (EVAP)
FC Fan Control –

FEEPROM

FEPROM Flash Erasable Programmable Read Only Memory –
FF Flexible Fuel –
FP Fuel Pump Fuel Pump
GEN Generator Alternator
GND Ground Ground (GND)

2003 TOYOTA TUNDRA (RM956U)

Data Link Connector 1
Data Link Connector 2
Data Link Connector 3

Flash Electrically Erasable Programmable
Read Only Memory

SAE TERMS

1: Check Connector
2: Total Diagnosis Comunication Link (TDCL)
3: OBD II Diagnostic Connector

Electrically Erasable Programmable Read Only Memory
(EEPROM),
Erasable Programmable Read Only Memory (EPROM)

TOYOTA TERMS

( )––ABBREVIATIONS

–

37Author: Date:

IN–38

–INTRODUCTION TERMS

HO2S Heated Oxygen Sensor Heated Oxygen Sensor (HO2S)
IAC Idle Air Control Idle Speed Control (ISC)
IAT Intake Air Temperature Intake or Inlet Air Temperature
ICM Ignition Control Module –
IFI Indirect Fuel Injection Indirect Injection (IDL)
IFS Inertia Fuel–Shutof f –
ISC Idle Speed Control –
KS Knock Sensor Knock Sensor
MAF Mass Air Flow Air Flow Meter

MAP Manifold Absolute Pressure

MC Mixture Control

MDP Manifold Dif ferential Pressure –
MFI Multiport Fuel Injection Electronic Fuel Injection (EFI)
MIL Malfunction Indicator Lamp Check Engine Lamp
MST Manifold Surface Temperature –
MVZ Manifold Vacuum Zone –
NVRAM Non–Volatile Random Access Memory –
O2S Oxygen Sensor Oxygen Sensor, O2 Sensor (O2S)
OBD On–Board Diagnostic On–Board Diagnostic System (OBD)
OC Oxidation Catalytic Converter Oxidation Catalyst Convert (OC), CCo
OP Open Loop Open Loop
PAIR Pulsed Secondary Air Injection Air Suction (AS)
PCM Powertrain Control Module –
PNP Park/Neutral Position –
PROM Programmable Read Only Memory –
PSP Power Steering Pressure –

PTOX Periodic T rap Oxidizer

RAM Random Access Memory Random Access Memory (RAM)
RM Relay Module –
ROM Read Only Memory Read Only Memory (ROM)
RPM Engine Speed Engine Speed
SC Supercharger Supercharger
SCB Supercharger Bypass E–ABV
SFI Sequential Multiport Fuel Injection Electronic Fuel Injection (EFI), Sequential Injection
SPL Smoke Puff Limiter –
SRI Service Reminder Indicator –
SRT System Readiness Test –
ST Scan Tool –
TB Throttle Body Throttle Body

TBI Throttle Body Fuel Injection

TC Turbocharger Turbocharger
TCC Torque Converter Clutch Torque Converter

2003 TOYOTA TUNDRA (RM956U)

Manifold Pressure
Intake Vacuum

Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)

Diesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)

Single Point Injection
Central Fuel Injection (Ci)

38Author: Date:

–INTRODUCTION TERMS

TCM Transmission Control Module Transmission ECU, ECT ECU
TP Throttle Position Throttle Position
TR Transmission Range –

TVV Thermal Vacuum Valve

TWC Three–Way Catalytic Converter

TWC+OC Three–Way + Oxidation Catalytic Converter CCR + CCo
VAF Volume Air Flow Air Flow Meter
VR Voltage Regulator Voltage Regulator
VSS Vehicle Speed Sensor Vehicle Speed Sensor
WOT Wide Open Throttle Full Throttle
WU–OC Warm Up Oxidation Catalytic Converter –
WU–TWC Warm Up Three–Way Catalytic Converter –
3GR Third Gear –
4GR Fourth Gear –

Bimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)

Three–Way Catalytic (TWC)
Manifold Converter
CC

RO

IN–39

2003 TOYOTA TUNDRA (RM956U)

39Author: Date:

MA–1

–MAINTENANCE OUTSIDE VEHICLE

OUTSIDE VEHICLE

MA001–06

GENERAL MAINTENANCE

The owners are responsible for these maintenance and inspection items.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.

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

otherwise noted.

 Failure to do even one item can cause the engine to run poorly and increase exhaust emissions.

2. TIRES

(a) Check the pressure with a gauge.
If necessary, adjust.
(b) Check for cuts, damage or excessive wear.

3. WHEEL NUTS

When checking the tires, check the nuts for looseness or for missing nuts.
If necessary, tighten them.

4. TIRE ROTATION (See page SA–3)

Check the owner’s manual supplement in which the maintenance schedule is shown.

5. WINDSHIELD WIPER BLADES

Check for wear or cracks whenever they do not wipe clean.
If necessary, replace.

6. FLUID LEAKS

(a) Check underneath for leaking fuel, oil, water or other fluid.
(b) If you smell gasoline fumes or notice any leak, have the cause found and corrected.

7. DOORS AND ENGINE HOOD

(a) Check that all doors and the tailgate operate smoothly, and that all latches lock securely.
(b) Check that the engine hood secondary latch secures the hood from opening when the primary latch

is released.

2003 TOYOTA TUNDRA (RM956U)

40Author: Date:

MA–2

–MAINTENANCE INSIDE VEHICLE

INSIDE VEHICLE

MA002–38

GENERAL MAINTENANCE

The owners are responsible for these maintenance and inspection items.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.

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

otherwise noted.

 Failure to do even one item can cause the engine to run poorly and increase exhaust emissions.

2. LIGHTS

(a) Check that the headlights, stop lights, taillights, turn signal lights, and other lights are all working.
(b) Check the headlight aim.

3. WARNING LIGHTS AND BUZZERS

Check that all warning lights and buzzers function properly.

4. HORN

Check that it is working.

5. WINDSHIELD

Check for scratches, pits or abrasions.

6. WINDSHIELD WIPER AND WASHER

(a) Check operation of the wipers and washer.
(b) Check that the wipers do not streak.

7. WINDSHIELD DEFROSTER

Check that air comes out from the defroster outlet when operating the heater or air conditioner.

8. REAR VIEW MIRROR

Check that it is mounted securely.

9. SUN VISORS

Check that they move freely and are mounted securely.

10. STEERING WHEEL

Check that it has the specified freeplay. Be alert for changes in steering condition, such as hard steering,
excessive freeplay or strange noises.

11. SEATS

(a) Check that the seat adjusters operate smoothly.
(b) Check that all latches lock securely in any position.
(c) Check that the head restraints move up and down smoothly and that the locks hold securely in any

latch position.

(d) For fold–down seat backs, check that the latches lock securely.

12. SEAT BELTS

(a) Check that the seat belt system such as the buckles, retractors and anchors operate properly and

smoothly.

(b) Check that the belt webbing is not cut, frayed, worn or damaged.

2003 TOYOTA TUNDRA (RM956U)

41Author: Date:

MA–3

–MAINTENANCE INSIDE VEHICLE

13. ACCELERATOR PEDAL

Check the pedal for smooth operation and uneven pedal effort or catching.

14. CLUTCH PEDAL (See page CL–2)

(a) Check the pedal for smooth operation.
(b) Check that the pedal has the proper free play.

15. BRAKE PEDAL (See page BR–6)

(a) Check the pedal for smooth operation.
(b) Check that the pedal has the proper reserve distance and free play.
(c) Check the brake booster function.

16. BRAKES

At a safe place, check that the brakes do not pull to one side when applied.

17. PARKING BRAKE (See page BR–13)

(a) Check that the lever has the proper travel.
(b) On a safe incline, check that the vehicle is held securely with only the parking brake applied.

18. AUTOMATIC TRANSMISSION ”PARK” MECHANISM

(a) Check the lock release button of the selector lever for proper and smooth operation.
(b) On a safe incline, check that the vehicle is held securely with the selector lever in P position and all

brakes released.

2003 TOYOTA TUNDRA (RM956U)

42Author: Date:

MA–4

–MAINTENANCE UNDER HOOD

UNDER HOOD

MA003–05

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

otherwise noted.

 Failure to do even one item can cause the engine to run poorly and increase exhaust emissions.

2. WINDSHIELD WASHER FLUID

Check that there is sufficient fluid in the tank.

3. ENGINE COOLANT LEVEL

Check that the coolant level is between the FULL and LOW lines on the see–through reservoir.

4. RADIATOR AND HOSES

(a) Check that the front of the radiator is clean and not blocked with leaves, dirt or bugs.
(b) Check the hoses for cracks, kinks, rot or loose connections.

5. BATTERY ELECTROLYTE LEVEL

Check that the electrolyte level of all battery cells is between the upper and lower level lines on the case.

6. BRAKE AND CLUTCH FLUID LEVELS

Check that the brake and clutch fluid levels are near the upper level line on the see–through reservoirs.

7. ENGINE DRIVE BELTS

Check all drive belts for fraying, cracks, wear or oiliness.

8. ENGINE OIL LEVEL

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 HOT or COLD 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 positions from the P to

L, and then shift into the P position.

(c) Pull out the dipstick and wipe off the fluid with a clean rag. Re–insert the dipstick and check that the

fluid level is in the HOT range.
(d) Do this check with the fluid at normal driving temperature (70 – 80°C, 158 – 176°F).
HINT:
Wait until the engine cools down (approx. 30 min.) before checking the fluid level after extended driving at
high speeds, in hot weather, in heavy traffic or pulling a trailer.

11. EXHAUST SYSTEM

(a) Visually inspect for cracks, holes or loose supports.
(b) If any change in the sound of the exhaust or smell of the exhaust fumes is noticed, have the cause

located and corrected.

2003 TOYOTA TUNDRA (RM956U)

43Author: Date:

–MAINTENANCE ENGINE

MA–5

ENGINE

MA004–08

INSPECTION

HINT:
Inspect these items when the engine is cold.

1. REPLACE TIMING BELT
(5VZ–FE: See pages EM–14 and EM–20)
(2UZ–FE: See pages EM–14 and EM–21)

2. INSPECT VALVE CLEARANCE
(5VZ–FE: See page EM–4)
(2UZ–FE: See page EM–4)

3. INSPECT DRIVE BELT(S)
(5VZ–FE: See pages CH–1, SR–3 and AC–16)
(2UZ–FE: See page CH–1)

4. REPLACE ENGINE OIL AND OIL FILTER
(5VZ–FE: See page LU–3)
(2UZ–FE: See page LU–2)

5. REPLACE ENGINE COOLANT
(5VZ–FE: See page CO–2)
(2UZ–FE: See page CO–2)

6. INSPECT EXHAUST PIPES AND MOUNTINGS

Visually inspect the pipes, hangers and connections for severe
corrosion, leaks or damage.

Outside

Inside

2003 TOYOTA TUNDRA (RM956U)

A08839

7. INSPECT AIR FILTER

(a) Visually check that the air filter is not excessively dirty or

oily.

HINT:
Oiliness may indicate a stuck PCV valve.
If necessary, replace the air filter.
(b) Clean the air filter with compressed air.

First blow from the inside thoroughly, then blow off the
outside of the air filter.

8. REPLACE AIR FILTER

Replace the air filter with a new one.

9. INSPECT FUEL LINES AND CONNECTIONS, AND
FUEL TANK VAPOR VENT SYSTEM HOSES AND
FUEL TANK BAND

Visually inspect the fuel lines for cracks, leakage loose connec­tions, deformation or tank band looseness.

10. REPLACE GASKET IN FUEL TANK CAP
(5VZ–FE: See page EC–6)
(2UZ–FE: See page EC–8)

44Author: Date:

MA–6

–MAINTENANCE ENGINE

11. REPLACE SPARK PLUGS
(5VZ–FE: See page IG–1)
(2UZ–FE: See page IG–1)

12. INSPECT CHARCOAL CANISTER
(5VZ–FE: See page EC–6)
(2UZ–FE: See page EC–8)

2003 TOYOTA TUNDRA (RM956U)

45Author: Date:

–MAINTENANCE BRAKE

MA–7

MA0055

BRAKE

MA014–02

INSPECTION

1. INSPECT BRAKE LINE PIPES AND HOSES

HINT:
Inspect in a well–lighted area. Inspect the entire circumference
and length of the brake hoses using a mirror as required. Turn
the front wheels fully right or left before inspecting the front
brake.
(a) Check all brake lines and hoses.

 Check for damage.
 Check for wear.
 Check for deformation.
 Check for cracks.
 Check for corrosion.
 Check for leaks.
 Check for bends.
 Check for twists.

(b) Check all clamps for tightness and connections for leak-

age.

(c) Check all clamps for tightness and connections for leak-

age.

(d) Check that the hoses and lines are clear of sharp edges,

moving parts and the exhaust system.

(e) Check that the lines installed in grommets pass through

the center of the grommets.

2. INSPECT FRONT BRAKE P ADS AND DISCS (See page

BR–29)

HINT:
If a squealing or scraping noise occurs from the brake during
driving, check the pad wear indicator.
If there are traces of the indicator contacting the disc rotor, the
disc pad should be replaced.

3. INSPECT REAR BRAKE LININGS AND DRUMS (See
page BR–36)

2003 TOYOTA TUNDRA (RM956U)

46Author: Date:

MA–8

–MAINTENANCE CHASSIS

CHASSIS

MA04D–02

INSPECTION

1. INSPECT STEERING LINKAGE

(a) Check the steering wheel free play (See page SR–9).
(b) Check the steering linkage for looseness or damage.

 Check that the tie rod ends do not have excessive play.
 Check that the dust seals and boots are not damaged.
 Check that the boot clamps are not loose.

2. INSPECT STEERING GEAR HOUSING OIL

Check the steering gear housing for oil leaks.
If leakage is found, check for cause and repair.

3. INSPECT BALL JOINTS AND DUST COVERS

(a) Inspect the ball joints for excessive looseness.
(b) Inspect the dust cover for damage.

4. 4WD:
INSPECT DRIVE SHAFT BOOTS

Inspect the drive shaft boots for clamp looseness, grease leakage or damage.

5. CHECK OIL LEVEL IN MANUAL TRANSMISSION, TRANSFER AND DIFFERENTIAL

Remove the filler plug and feel inside the hole with your finger. Check that the oil comes to within 5 mm (0.20
in.) of the bottom edge of the hole.
If the level is low, add oil until it begins to run out of the filler hole.

Transmission oil (2WD): See page MT–6.
Transmission oil (4WD): See page MT–11.
Transfer (VF2A) oil (5VZ–FE): See page TR–6.
Transfer (VF2BM) oil (2UZ–FE): See page TR–6.
Front differential oil (4WD): See page SA–26.
Rear differential oil: See page SA–92.

6. REPLACE MANUAL TRANSMISSION, TRANSFER AND DIFFERENTIAL OIL

(a) Remove the drain plug and drain the oil.
(b) Reinstall drain plug securely.
(c) Add new oil until it begins to run out of the filler hole.

Transmission oil (2WD): See page MT–6.
Transmission oil (4WD): See page MT–11.
Transfer (VF2A) oil (5VZ–FE): See page TR–6.
Transfer (VF2BM) oil (2UZ–FE): See page TR–6.
Front differential oil (4WD): See page SA–26.
Rear differential oil: See page SA–92.

7. CHECK FLUID LEVEL IN AUTOMATIC TRANSMISSION (See page DI–384)

8. REPLACE AUTOMATIC TRANSMISSION FLUID (See page DI–384)

2003 TOYOTA TUNDRA (RM956U)

47Author: Date:

–MAINTENANCE CHASSIS

9. LUBRICATE PROPELLER SHAFT AND TIGHTEN BOLTS

(a) 4WD:

Lubricate propeller shaft, referring to the lubrication chart. Before pumping in grease, wipe off any mud
and dust on the grease fitting.

Grease grade:
Propeller shaft (Except Double–cardan joint): Lithium base chassis grease NLGI No. 2
Double–cardan joint: Molybdenum disulphide lithium base chassis grease NLGI No. 2

B

A

C

C

C

A

A

C

MA–9

A: Propeller Shaft Spiders
B: Propeller Shaft Sliding Yokes
C: Double–Cardan Joint

(b) Tighten the bolts for propeller shaft (2WD: See page PR–8) (4WD: See page PR–15 ).

10. ROTATE TIRES (See page SA–3)

B07269

2003 TOYOTA TUNDRA (RM956U)

48Author: Date:

MA–10

–MAINTENANCE BODY

BODY

INSPECTION

TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY

(a) Where necessary, tighten all parts of the chassis.

 Front axle and suspension
 Drive train
 Rear axle and suspension
 Brake system
 Engine mounting, etc.

(b) Where necessary, tighten all parts of the body.

 Seat belt system
 Seats
 Doors and hood
 Body mountings
 Fuel tank
 Exhaust pipe system, etc.

MA04E–01

2003 TOYOTA TUNDRA (RM956U)

49Author: Date:

–PREPARATION MAINTENANCE

MAINTENANCE

EQUIPMENT

Mirror Brake hose
Torque wrench

PP–1

PP0G5–01

2003 TOYOTA TUNDRA (RM956U)

50Author: Date:

PP–2

–PREPARATION ENGINE MECHANICAL (5VZ–FE)

ENGINE MECHANICAL (5VZ–FE)

SST (Special Service Tools)

PP016–08

09201–10000

(09201–01060)

09201–41020

09202–70020

(09202–00010)

09213–54015

Valve Guide Bushing Remover &
Replacer Set

Valve Guide Bushing Remover &
Replacer 6

Valve Stem Oil Seal Replacer

Valve Spring Compressor

Attachment

Crankshaft Pulley Holding Tool

(90119–08216)

09222–30010

09223–15030

09228–07501

09248–55040

(09248–05410)

Bolt

Connecting Rod Bushing Remover
& Replacer

Oil Seal & Bearing Replacer Crankshaft rear oil seal

Oil Filter Wrench

Valve Clearance Adjust Tool Set

Valve Lifter Press

2003 TOYOTA TUNDRA (RM956U)

51Author: Date:

–PREPARATION ENGINE MECHANICAL (5VZ–FE)

PP–3

(09248–05420)

09330–00021

09816–30010

09817–16011

09843–18040

09950–50013

Valve Lifter Stopper

Companion Flange Holding Tool Crankshaft pulley

Oil Pressure Switch Socket Oil pressure switch

Back–up Light Switch Tool Knock sensor

Diagnosis Check Wire No.2

Puller C Set

(09951–05010)

(09952–05010)

(09953–05020)

(09954–05011)

(09954–05031)

09950–70010

Hanger 150 Crankshaft pulley

Crankshaft timing pulley

Slide Arm Crankshaft pulley

Crankshaft timing pulley

Center Bolt 150 Crankshaft pulley

Crankshaft timing pulley

Claw No.1 Crankshaft timing pulley

Claw No.3 Crankshaft pulley

Handle Set

2003 TOYOTA TUNDRA (RM956U)

(09951–07150)

Handle 150 Crankshaft rear oil seal

Valve guide bushing

52Author: Date:

PP–4

–PREPARATION ENGINE MECHANICAL (5VZ–FE)

09960–10010

(09962–01000)

(09963–00600)

(09963–01000)

Variable Pin Wrench Set

Variable Pin Wrench Arm Assy Camshaft timing pulley

Camshaft sub–gear

Pin 6 Camshaft sub–gear

Pin 10 Camshaft timing pulley

2003 TOYOTA TUNDRA (RM956U)

53Author: Date:

RECOMMENDED TOOLS

PP–5

–PREPARATION ENGINE MECHANICAL (5VZ–FE)

PP017–07

09040–00011

09090–04020

09200–00010

09258–00030

09904–00010

Hexagon Wrench Set .

Engine Sling Device For suspending engine

Engine Adjust Kit .

Hose Plug Set . Plug for the vacuum hose, fuel hose

etc.

Expander Set .

2003 TOYOTA TUNDRA (RM956U)

54Author: Date:

PP–6

–PREPARATION ENGINE MECHANICAL (5VZ–FE)

EQUIPMENT

Caliper gauge
CO/HC meter
Compression gauge
Connecting rod aligner
Cylinder gauge
Dial indicator
Dye penetrant
Engine tune–up tester
Groove cleaning tool
Heater
Magnetic finger
Micrometer
Pin hole grinder
OBD II scan tool
Piston ring compressor
Piston ring expander
Plastigage
Precision straight edge
Press
Soft brush
Ridge reamer
Solvent
Spring tester Valve spring
Steel square Valve spring
Thermometer
Torque wrench
Valve seat cutter
V–block
Vernier calipers
Wire brush Valve

PP018–03

2003 TOYOTA TUNDRA (RM956U)

55Author: Date:

SSM (Special Service Materials)

PP–7

–PREPARATION ENGINE MECHANICAL (5VZ–FE)

PP3WO–01

08826–00080

08826–00100

08833–00070

08833–00080

Seal Packing Black or equivalent
(FIPG)

Seal Packing 1282B,
THREE BOND 1282B or equivalent
(FIPG)

Adhesive 1324,
THREE BOND 1324 or equivalent

Adhesive 1344
THREE BOND 1344
LOCTITE 242 or equivalent

No. 1 camshaft bearing cap
Cylinder head semi–circular plug
Cylinder head cover
Rear oil seal retainer

Water bypass pipe

Spark plug tube
Drive plate bolt
Flywheel bolt

No. 1 idler pulley bolt
Oil pressure switch

2003 TOYOTA TUNDRA (RM956U)

56Author: Date:

PP–8

–PREPARATION ENGINE MECHANICAL (2UZ–FE)

ENGINE MECHANICAL (2UZ–FE)

SST (Special Service Tools)

PP24E–02

09201–01055

09201–41020

09202–70020

(09202–00010)

09213–70011

09222–30010

Valve Guide Bushing Remover & Re
placer 5.5

Valve Stem Oil Seal Replacer

Valve Spring Compressor

Attachment

Crankshaft Pully Holding Tool

Connecting Rod Bushing Remover
& Replacer

09223–46011

09223–56010

09330–00021

09843–18040

09950–50013

(09951–05010)

Crankshaft Front Oil Seal
Replacer

Crankshaft Rear Oil Seal
Replacer

Companion Flange Holding Tool Crankshaft pulley

Diagnosis Check Wire No.2

Puller C Set

Hanger 150 Crankshaft pulley

Crankshaft pulley
Crankshaft timing pulley

Crankshaft timing pulley

2003 TOYOTA TUNDRA (RM956U)

57Author: Date:

–PREPARATION ENGINE MECHANICAL (2UZ–FE)

PP–9

(09952–05010)

(09953–05010)

(09953–05020)

(09954–05011)

(09954–05021)

09950–60010

Slide Arm Crankshaft pulley

Crankshaft timing pulley

Center Bolt 100 Crankshaft pulley

Crankshaft timing pulley

Center Bolt 150 Crankshaft pulley

Crankshaft timing pulley

Claw No.1 Crankshaft timing pulley

Claw No.2 Crankshaft pulley

Replacer Set

(09951–00240)

(09951–00440)

(09952–06010)

09950–70010

(09951–07100)

09960–10010

Replacer 24 Spark plug tube gasket

Replacer 44 Spark plug tube gasket

Adapter Spark plug tube gasket

Handle Set

Handle 100 Spark plug tube gasket

Valve guide bushing

Variable Pin Wrench Set

2003 TOYOTA TUNDRA (RM956U)

(09962–01000)

Variable Pin Wrench Arm Assy Camshaft timing pulley

Camshaft sub–gear

58Author: Date:

PP–10

–PREPARATION ENGINE MECHANICAL (2UZ–FE)

(09963–00500)

(09963–01000)

Pin 5 Camshaft sub–gear

Pin 10 Camshaft timing pulley

2003 TOYOTA TUNDRA (RM956U)

59Author: Date:

RECOMMENDED TOOLS

PP–11

–PREPARATION ENGINE MECHANICAL (2UZ–FE)

PP1BL–08

09040–00011

09090–04020

09200–00010

09258–00030

09904–00010

Hexagon Wrench Set .

Engine Sling Device For suspension engine

Engine Adjust Kit .

Hose Plug Set . Plug for vacuum hose, fuel

hose etc.

Expander Set .

2003 TOYOTA TUNDRA (RM956U)

60Author: Date:

PP–12

–PREPARATION ENGINE MECHANICAL (2UZ–FE)

EQUIPMENT

Caliper gauge
CO/HC meter
Compression gauge
Connecting rod aligner
Cylinder gauge
Dial indicator
Dye penetrant
Engine tune–up tester
Groove cleaning tool
Heater
Magnetic finger
Micrometer
Pin hole grinder
OBD II scan tool
Piston ring compressor
Piston ring expander
Plastigage
Precision straight edge
Press
Soft brush
Ridge reamer
Solvent
Spring tester Valve spring
Steel square Valve spring
Thermometer
Torque wrench
Valve seat cutter
V–block
Vernier calipers
Wire brush Valve

PP1BM–01

2003 TOYOTA TUNDRA (RM956U)

61Author: Date:

SSM (Special Service Materials)

PP–13

–PREPARATION ENGINE MECHANICAL (2UZ–FE)

PP1BN–05

08826–00080

08833–00070

08833–00080

Seal Packing Black or equivalent
(FIPG)

Adhesive 1324,
THREE BOND 1324 or equivalent

Adhesive 1344
THREE BOND 1344
LOCTITE 242 or equivalent

Front camshaft bearing cap
Cylinder head semi–circular plug
Camshaft housing cap
Cylinder head cover
Rear oil seal retainer

Spark plug tube
Drive plate bolt
Torque converter clutch bolt
Engine coolant drain union

No. 1 idler pulley bolt

2003 TOYOTA TUNDRA (RM956U)

62Author: Date:

PP–14

–PREPARATION EMISSION CONTROL (5VZ–FE)

EMISSION CONTROL (5VZ–FE)

EQUIPMENT

MITYVAC (Hand–held vacuum pump)
Pressure gauge
Torque wrench
Vacuum gauge

PP015–07

2003 TOYOTA TUNDRA (RM956U)

63Author: Date:

–PREPARATION EMISSION CONTROL (2UZ–FE)

EMISSION CONTROL (2UZ–FE)

EQUIPMENT

MITYVAC (Hand–held vacuum pump)
Pressure gauge
Torque wrench
Vacuum gauge

PP–15

PP1AK–04

2003 TOYOTA TUNDRA (RM956U)

64Author: Date:

PP–16

SSM (Special Service Materials)

–PREPARATION EMISSION CONTROL (2UZ–FE)

PP3WN–01

08833–00070

Adhesive 1324,
THREE BOND 1324 or equivalent

PCV valve

2003 TOYOTA TUNDRA (RM956U)

65Author: Date:

SFI (5VZ–FE)

SST (Special Service Tools)

PP–17

–PREPARATION SFI (5VZ–FE)

PP3WV–01

09023–38400

09268–41047

(09268–41091)

(09268–52011)

09268–45014

09817–16011

Union Nut Wrench 14mm Fuel line flare nut

Injection Measuring Tool Set

NO.7 Union

Injection Measuring Attachment

EFI Fuel Pressure Gauge

Back–up Light Switch Tool Knock sensor

09842–30070

Wiring ”F” EFI Inspection

2003 TOYOTA TUNDRA (RM956U)

66Author: Date:

PP–18

RECOMMENDED TOOLS

–PREPARATION SFI (5VZ–FE)

PP01E–03

09082–00050

(09082–00040)

09200–00010

09258–00030

TOYOTA Electrical Tester Set.

TOYOTA Electrical Tester.

Engine Adjust Kit .

Hose Plug Set . Plug for the vacuum hose, fuel hose

etc.

2003 TOYOTA TUNDRA (RM956U)

67Author: Date:

–PREPARATION SFI (5VZ–FE)

EQUIPMENT

Carburetor cleaner Throttle body
Graduated cylinder Injector
OBD II scan tool Engine speed
Soft brush Throttle body
Sound scope Injector
Torque wrench

PP–19

PP01F–02

2003 TOYOTA TUNDRA (RM956U)

68Author: Date:

PP–20

SFI (2UZ–FE)

SST (Special Service Tools)

–PREPARATION SFI (2UZ–FE)

PP24H–02

09023–38400

09268–41047

(09268–41091)

(09268–41110)

(09268–41300)

(09268–52011)

Union Nut Wrench 14mm Fuel line flare nut

Injection Measuring Tool Set

NO.7 Union

Adaptor

Clamp

Injection Measuring Attachment

09268–45014

(09268–41190)

(90405–06167)

09612–24014

(09617–24011)

09816–30010

EFI Fuel Pressure Gauge

Adaptor

I Union

Steering Gear Housing Overhaul
Tool Set

Steering Rack Wrench Fuel pressure pulsation damper

Oil Pressure Switch Socket Knock sensor

2003 TOYOTA TUNDRA (RM956U)

69Author: Date:

–PREPARATION SFI (2UZ–FE)

PP–21

09842–30070

Wiring ”F” EFI Inspection

2003 TOYOTA TUNDRA (RM956U)

70Author: Date:

PP–22

RECOMMENDED TOOLS

–PREPARATION SFI (2UZ–FE)

PP0U4–05

09082–00050

(09082–00040)

09258–00030

TOYOTA Electrical Tester Set.

TOYOTA Electrical Tester.

Hose Plug Set . Plug for vacuum hose, fuel hose etc.

2003 TOYOTA TUNDRA (RM956U)

71Author: Date:

–PREPARATION SFI (2UZ–FE)

EQUIPMENT

Graduated cylinder Injector
OBD II scan tool
Sound scope Injector
Torque wrench
Vacuum gauge

PP–23

PP0NI–02

2003 TOYOTA TUNDRA (RM956U)

72Author: Date:

PP–24

COOLING (5VZ–FE)

SST (Special Service Tools)

–PREPARATION COOLING (5VZ–FE)

PP24F–02

09230–01010

09231–14010

Radiator Service Tool Set

Punch Radiator

2003 TOYOTA TUNDRA (RM956U)

73Author: Date:

EQUIPMENT

Heater
Radiator cap tester
Thermometer
Torque wrench

PP–25

–PREPARATION COOLING (5VZ–FE)

PP01J–02

2003 TOYOTA TUNDRA (RM956U)

74Author: Date:

PP–26

COOLANT

Item Capacity Classification

Engine coolant A/T

M/T

–PREPARATION COOLING (5VZ–FE)

9.9 liters (10.5 US qts, 8.7 lmp. qts)

10.0 liters (10.6 US qts, 8.8 lmp. qts)

PP01K–04

”TOYOTA Long Life Coolant” or equivalent

2003 TOYOTA TUNDRA (RM956U)

75Author: Date:

SSM (Special Service Materials)

PP–27

–PREPARATION COOLING (5VZ–FE)

PP24G–02

08826–00100

Seal Packing 1282B,
THREE BOND 1282B or equivalent
(FIPG)

Water pump

2003 TOYOTA TUNDRA (RM956U)

76Author: Date:

PP–28

COOLING (2UZ–FE)

SST (Special Service Tools)

–PREPARATION COOLING (2UZ–FE)

PP24C–04

09230–01010

09231–14010

Radiator Service Tool Set

Punch Radiator

2003 TOYOTA TUNDRA (RM956U)

77Author: Date:

–PREPARATION COOLING (2UZ–FE)

EQUIPMENT

Heater Thermostat
Radiator cap tester
Thermometer Thermostat
Torque wrench

PP–29

PP1AQ–02

2003 TOYOTA TUNDRA (RM956U)

78Author: Date:

PP–30

COOLANT

Item Capacity Classification

Engine coolant 11.6 liters (12.3 US qts, 10.2 lmp. qts) ”TOYOTA Long Life Coolant” or equivalent

–PREPARATION COOLING (2UZ–FE)

PP1AR–02

2003 TOYOTA TUNDRA (RM956U)

79Author: Date:

SSM (Special Service Materials)

PP–31

–PREPARATION COOLING (2UZ–FE)

PP1AS–04

08826–00100

Seal Packing 1282B,
THREE BOND 1282B or equivalent
(FIPG)

Water inlet housing

2003 TOYOTA TUNDRA (RM956U)

80Author: Date:

PP–32

LUBRICATION (5VZ–FE)

SST (Special Service Tools)

–PREPARATION LUBRICATION (5VZ–FE)

PP01R–04

09032–00100

09228–07501

09309–37010

09816–30010

Oil Pan Seal Cutter

Oil Filter Wrench

Transmission Bearing Replacer Crankshaft front oil seal

Oil Pressure Switch Socket

2003 TOYOTA TUNDRA (RM956U)

81Author: Date:

RECOMMENDED TOOLS

PP–33

–PREPARATION LUBRICATION (5VZ–FE)

PP01S–05

09200–00010

Engine Adjust Kit .

2003 TOYOTA TUNDRA (RM956U)

82Author: Date:

PP–34

–PREPARATION LUBRICATION (5VZ–FE)

EQUIPMENT

Oil pressure gauge
Precision straight edge Oil pump
Torque wrench

PP01T–02

2003 TOYOTA TUNDRA (RM956U)

83Author: Date:

LUBRICANT

Item Capacity Classification

Engine oil
Dry fill
Drain and refill w/ Oil filter change

w/o Oil filter change

–PREPARATION LUBRICATION (5VZ–FE)

5.9 liters (6.2 US qts, 5.2 lmp. qts)

5.2 liters (5.5 US qts, 4.6 lmp. qts)

4.9 liters (5.2 US qts, 4.3 lmp. qts)

PP–35

PP01U–08

API grade SL, Energy–Conserving or ILSAC mul­tigrade engine oil. SAE 5W–30 is the best choice
for your vehicle, for good fuel economy, and good
starting in cold weather

2003 TOYOTA TUNDRA (RM956U)

84Author: Date:

PP–36

SSM (Special Service Materials)

–PREPARATION LUBRICATION (5VZ–FE)

PP24D–02

08826–00080

08833–00080

Seal Packing Black or equivalent
(FIPG)

Adhesive 1344
THREE BOND 1344
LOCTITE 242 or equivalent

Oil pump, Oil pan

Oil pressure switch

2003 TOYOTA TUNDRA (RM956U)

85Author: Date:

LUBRICATION (2UZ–FE)

SST (Special Service Tools)

PP–37

–PREPARATION LUBRICATION (2UZ–FE)

PP24A–04

09032–00100

09228–07501

09316–60011

(09316–00011)

Oil Pan Seal Cutter

Oil Filter Wrench

Transmission & Transfer Bearing
Replacer

Replacer Pipe Crankshaft front oil seal

2003 TOYOTA TUNDRA (RM956U)

86Author: Date:

PP–38

RECOMMENDED TOOLS

–PREPARATION LUBRICATION (2UZ–FE)

PP1AU–04

09200–00010

09905–00013

Engine Adjust Kit .

Snap Ring Pliers .

2003 TOYOTA TUNDRA (RM956U)

87Author: Date:

EQUIPMENT

Oil pressure gauge
Precision straight edge
Torque wrench

PP–39

–PREPARATION LUBRICATION (2UZ–FE)

PP1AV–02

2003 TOYOTA TUNDRA (RM956U)

88Author: Date:

PP–40

LUBRICANT

Item Capacity Classification

Engine oil
Dry fill
Drain and refill w/ Oil filter change

w/o Oil filter change

–PREPARATION LUBRICATION (2UZ–FE)

7.1 liters (7.5 US qts, 6.2 Imp. qts)

6.2 liters (6.5 US qts, 5.5 Imp. qts)

5.7 liters (6.0 US qts, 5.0 Imp qts)

PP1AW–06

API grade SL, Energy–Conserving or ILSAC mul­tigrade engine oil. SAE 5W–30 is the best choice
for your vehicle, for good fuel economy, and good
starting in cold weather

2003 TOYOTA TUNDRA (RM956U)

89Author: Date:

SSM (Special Service Materials)

PP–41

–PREPARATION LUBRICATION (2UZ–FE)

PP1AX–04

08826–00080

08833–00080

Seal Packing Black or equivalent
(FIPG)

Adhesive 1344
THREE BOND 1344
LOCTITE 242 or equivalent

Oil pump
No.1 oil pan
No.2 oil pan

Oil pressure switch

2003 TOYOTA TUNDRA (RM956U)

90Author: Date:

PP–42

IGNITION (5VZ–FE)

RECOMMENDED TOOLS

–PREPARATION IGNITION (5VZ–FE)

PP3WP–01

09082–00050

(09082–00040)

09200–00010

TOYOTA Electrical Tester Set.

TOYOTA Electrical Tester.

Engine Adjust Kit .

2003 TOYOTA TUNDRA (RM956U)

91Author: Date:

–PREPARATION IGNITION (5VZ–FE)

EQUIPMENT

Megger insulation resistance meter Spark plug
Spark plug cleaner

PP–43

PP020–01

2003 TOYOTA TUNDRA (RM956U)

92Author: Date:

PP–44

IGNITION (2UZ–FE)

RECOMMENDED TOOLS

–PREPARATION IGNITION (2UZ–FE)

PP3WQ–01

09082–00050

(09082–00040)

09200–00010

TOYOTA Electrical Tester Set.

TOYOTA Electrical Tester.

Engine Adjust Kit .

2003 TOYOTA TUNDRA (RM956U)

93Author: Date:

–PREPARATION IGNITION (2UZ–FE)

EQUIPMENT

Megger (Insulation resistance meter) Spark plug
Spark plug cleaner
Torque wrench

PP–45

PP1AM–01

2003 TOYOTA TUNDRA (RM956U)

94Author: Date:

PP–46

STARTING (5VZ–FE)

SST (Special Service Tools)

–PREPARATION STAR TING (5VZ–FE)

PP024–04

09286–46011

09810–38140

09820–00031

Injection Pump Spline Shaft
Puller

Starter Magnet Switch Nut Wrench
14

Alternator Rear Bearing Replacer Armature front bearing

Armature bearing

2003 TOYOTA TUNDRA (RM956U)

95Author: Date:

RECOMMENDED TOOLS

PP–47

–PREPARATION STAR TING (5VZ–FE)

PP3WR–01

09082–00050

(09082–00040)

TOYOTA Electrical Tester Set.

TOYOTA Electrical Tester.

2003 TOYOTA TUNDRA (RM956U)

96Author: Date:

PP–48

–PREPARATION STAR TING (5VZ–FE)

EQUIPMENT

Dial indicator Commutator
Magnetic finger Steel ball
Press Armature bearing, Magnetic switch terminal kit
Pull scale Brush spring
Sandpaper Commutator
Torque wrench
V–block Commutator
Vernier calipers Commutator, Brush

PP026–03

2003 TOYOTA TUNDRA (RM956U)

97Author: Date:

STARTING (2UZ–FE)

SST (Special Service Tools)

PP–49

–PREPARATION STAR TING (2UZ–FE)

PP1AZ–07

09286–46011

09810–38140

09820–00031

Injection Pump Spline Shaft
Puller

Starter Magnet Switch Nut Wrench
14

Alternator Rear Bearing Replacer Armature front bearing

Armature bearing

2003 TOYOTA TUNDRA (RM956U)

98Author: Date:

PP–50

RECOMMENDED TOOLS

–PREPARATION STAR TING (2UZ–FE)

PP3WS–01

09082–00050

(09082–00040)

TOYOTA Electrical Tester Set.

TOYOTA Electrical Tester.

2003 TOYOTA TUNDRA (RM956U)

99Author: Date:

–PREPARATION STAR TING (2UZ–FE)

EQUIPMENT

Dial indicator Commutator
Magnetic finger Steel ball
Press Armature bearing, Magnetic switch terminal kit
Pull scale Brush spring
Sandpaper Commutator
Torque wrench
V–block Commutator
Vernier calipers Commutator, Brush

PP–51

PP1B1–03

2003 TOYOTA TUNDRA (RM956U)

100Author: Date: