Toyota Sequoia (2005). Manual - part 6

 

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Toyota Sequoia (2005). Manual - part 6

 

 

IN0KL–01

INTRODUCTION

FOR ALL OF VEHICLES

IN–21

21

CUSTOMIZE PARAMETERS

HINT:
The following items can be customized.
NOTICE:



When a customer requests a change in a function, first make sure that customization of the
function(s) is/are possible.



Be sure to make a note of the current setting before customizing.



When troubleshooting a function, first make sure that the function is not set to OFF.



When  troubleshooting, pay attention as there is a possibility that the function has been set to
SMALL through customizing (Example: In case of the symptom in which ”The key reminder
buzzer operation does not function” is displayed, check that the key reminder buzzer operation
is not set to SMALL, then perform troubleshooting).

METER:

DISPLAY (ITEM)

DEFAULT

CONTENTS

SETTING

KEY REMND VOLUM

(Key reminder buzzer vol-

ume)

LARGE

Function that changes the volume of key reminder buzzer.

LARGE/MEDIUM/SMALL

WIRELESS DOOR LOCK:

DISPLAY (ITEM)

DEFAULT

CONTENTS

SETTING

WIRELESS OPER

ON

Turns wireless door lock function ON/OFF.

ON/OFF

OPEN DOOR WARN

ON

Sounds buzzer for 10 seconds when door is not completely

closed and transmitter LOCK switch is pressed.

ON/OFF

AUTO LOCK DELAY

30S

Controls amount of time from when doors are unlocked until

they are locked by automatic lock function.

60S/30S

UNLOCK/2OPER

ON

When UNLOCK switch is pressed once, this function un–

locks only the designated door. When unlock switch is

pressed again within 3 seconds, all doors unlock. If setting is

OFF, pressing UNLOCK switch once unlocks all doors.

ON/OFF

LNT/LGT ON/UNLK

ON

Turns on room light when wireless door lock system is oper-

ated.

ON/OFF

ALARM FUNCTION

ON

Operates theft deterrent system when transmitter LOCK

(PANIC) switch is held for 3 seconds.

ON/OFF

AUTO LOCK

OFF

Locks doors when the vehicle speed reaches a certain level.

ON/OFF

UNLK/KEY TWICE

ON

Unlocks only driver’s door when driver’s door key cylinder is

turned to unlock once, and unlocks all doors when it is turned

to unlock twice. In OFF setting, unlocks all doors when the

cylinder is turned to unlock once.

ON/OFF

ALL UNLK/OPN–CL

OFF

Function that unlocks all doors when the driver door is

opened after turning the ignition switch off.

ON/OFF

UNLOCK/PARK

OFF

Unlocks doors when shift lever is moved to P position from

any position other than P while the ignition switch is ON.

ON/OFF

THEFT:

DISPLAY (ITEM)

DEFAULT

CONTENTS

SETTING

WARNING TIME

15S

Changes warning time for PASSIVE MODE.

5S/15S/27.5S/60S

PASSIVE MODE

OFF

Switches theft deterrent system from arming preparation

state to armed state 30 seconds after key is removed from

ignition key cylinder and driver side door is closed, even if

doors are not locked by wireless or door key lock operation.

ON/OFF

WARN BY GLS SEN

ON

Function that switches the alarm warning on/off when glass

breakage is detected.

ON/OFF

IN–22

INTRODUCTION

FOR ALL OF VEHICLES

22

DOOR LOCK:

DISPLAY (ITEM)

DEFAULT

CONTENTS

SETTING

AUTO LOCK/SHIFT

ON

Locks doors when shift lever is moved from P to another

position.

ON/OFF

ILLUMINATED ENTRY:

DISPLAY (ITEM)

DEFAULT

CONTENTS

SETTING

I/L ON/UNLOCK

ON

Illuminates interior light when ignition switch is turned from

ACC to LOCK position.

ON/OFF

LIGHTING TIME

15S

Changes lighting time after closing doors (light quickly fades

out when ignition switch is turned on).

15S/7.5S/30S

LIGHT CONTROL:

DISPLAY (ITEM)

DEFAULT

CONTENTS

SETTING

SENSITIVITY

NORMAL

Sensitivity adjustment is difficult to confirm. Check by driving

the customer’s vehicle.

NORMAL/DARK2/DARK1/

LIGHT1/LIGHT2

LIGHT OFF DELAY

30S

Keeps headlights on for a certain period of time after closing

all doors with ignition switch on, light control switch in HEAD

or AUTO position, and headlights on.

OFF/30S/60S/90S

DISP EX ON SEN

NORMAL

Changes brightness of lights such as combination meter

indicator light, A/C indicator lamp, and clock lamp.

NORMAL/DARK2/DARK1/

LIGHT1/LIGHT2

DISP OFF SEN

NORMAL

Changes brightness of lights such as combination meter

indicator light, A/C indicator lamp, and clock lamp.

NORMAL/DARK2/DARK1/

LIGHT1/LIGHT2

IN01T–18

INTRODUCTION

HOW TO TROUBLESHOOT ECU CONTROLLED 
SYSTEMS

IN–23

23

HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS

GENERAL INFORMATION

A large number of ECU controlled systems are used in the SEQUOIA. 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

DI–1

2. Automatic Transmission

DI–515

3. Air Suspension Control System

DI–695

4. Tire Pressure Warning System

DI–796

5. ABS with EBD & BA & TRAC & VSC System

DI–891

6. Can Communication System

DI–1060

7. Supplemental Restraint System

DI–1118

8. Power Seat Control System

w/ Driving Position Memory

DI–1501

9. Cruise Control System

DI–1536

10.Engine Immobilizer System

DI–1570

11.Combination Meter System

DI–1601

12.Sliding Roof System

DI–1661

13.Body Control System

DI–1678

14.Driver Door Control System

DI–1778

15.Passenger Door Control System

DI–1814

16.Back Door Control System

DI–1850

17.Multiplex Communication System

DI–1887

18.Audio System

DI–1955

19.Rear Seat Audio System

DI–2044

20.Rear Seat Entertainment System

DI–2078

21.Navigation System

DI–2159

22.Air Conditioning System

DI–2297

FOR USING OBD II SCAN TOOL OR TOYOTA 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.

IN01U–14

Vehicle Brought to Workshop

Customer Problem
Analysis

Symptom Confirmation
and Diagnostic Trouble
Code Check

Symptom Simulation

Diagnostic Trouble 
Code Chart

Problem Symptoms Table

Circuit Inspection or Parts
Inspection

Repair

Confirmation Test

End

1

2

4

3

5

6

7

8

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

1

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.)

2, 3

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
trouble code chart or the problem symptoms table.

4, 5, 6

Check and repair the affected system or part in 
accordance with the instructions in Step 6.

7

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.)

8

IN–24

INTRODUCTION

HOW TO TROUBLESHOOT ECU CONTROLLED 
SYSTEMS

24

HOW TO PROCEED WITH TROUBLESHOOTING

Carry out troubleshooting in accordance with the procedure on the following page. Here, only the basic pro-
cedure 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.

 

 

 

 

 

 

 

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