Toyota Tundra. Manual — part 9

INITIALIZATION

1. Procedures necessary when battery terminal is disconnected/reconnected

Procedures necessary when battery terminal is disconnected/reconnected

BATTERY TERMINAL DISCONNECTED/RECONNECTED PROCEDURES REFERENCE

2. Procedures necessary when ECU or other parts are replaced

Procedures necessary when ECU or other parts are replaced

ECU OR OTHER PARTS REPLACEMENT DISCONNECTED/RECONNECTED
PROCEDURES REFERENCE

Necessary

Procedures

Procedure Details

Effects/Inoperative Functions
When Necessary Procedures
are not Performed

Notes

Navigation
system
initialization

After turning the
ignition switch on
(IG), insert the map
disc.

Navigation system

If the map disc is inside when
disconnecting the cable from the
battery terminal, this procedure
is not necessary

NOTE:

After the ignition switch is turned OFF, the navigation system requires
approximately 90 seconds to record various types of memory and
settings. As a result, after turning the ignition switch OFF, wait 90 seconds
or more before disconnecting the cable from the negative (-) battery
terminal.

Replacement Part

Necessary

Procedures

Effects/Inoperative Functions

When Necessary Procedures

are not Performed

Notes

ECM

Register VIN

DTC P0630 is output

-



Automatic
transmission
assembly



Engine
assembly



ECM

Reset memory

Large shift shock

-

Tire pressure
warning ECU

1. Register

transmitter IDs

2. Initialize tire

pressure
warning system



When DTC detection
conditions of
"transmitter ID not
received" DTC is met,
tire pressure warning
light blinks for 1 minute,
and then illuminates



Tire pressure monitoring

-

2009 Toyota Tundra

2009 GENERAL INFORMATION Introduction - Tundra

function

Tire pressure
warning valve and
transmitter

1. Register

transmitter IDs

2. Initialize tire

pressure
warning system



When DTC detection
conditions of
"transmitter ID not
received" DTC is met,
tire pressure warning
light blinks for 1 minute,
and then illuminates



Tire pressure monitoring
function of replaced
wheel

Even if only one wheel is
replaced, IDs for all 4
wheels must be registered.

Skid control ECU



Deceleration
sensor zero
point
calibration



Master cylinder
pressure sensor
zero point
calibration



ABS warning light
illumination



VSC OFF indicator light
illumination

-

Yaw rate sensor



Zero point
calibration data
clearance



Deceleration
sensor zero
point
calibration



ABS warning light
illumination



VSC OFF indicator light
illumination



VSC control is
prohibited or operation is
incorrect

-

Front Wheel
Alignment
Adjustment



Zero point
calibration data
clearance



Deceleration
sensor zero
point
calibration



Perform
initialization of
steering angle
sensor



ABS warning light
illumination



VSC OFF indicator light
illumination

Complete the adjustment of

the steering wheel and

wheel alignment, and then

initialize the steering angle

sensor. If the order is

reversed, the steering wheel

and wheel alignment will

become misaligned.

Occupant
classification ECU



Zero point
calibration



Sensitivity
check



Occupant classification
system



Passenger airbag
ON/OFF indicator



Airbag system (Front
passenger side)

-

2009 Toyota Tundra

2009 GENERAL INFORMATION Introduction - Tundra

3. DESCRIPTION

HINT:

This registration section consists of two parts: Read VIN and Write VIN.

a. Read VIN: Explains the VIN reading process in a flowchart. This process allows the VIN stored in

the ECM to be read in order to confirm that the two VINs, provided with the vehicle and stored in
the vehicle's ECM, are the same.

b. Write VIN: Explains the VIN writing process in a flowchart. This process allows the VIN to be

input into the ECM. If the ECM is changed, or the ECM VIN and vehicle VIN do not match, the
VIN can be registered, or overwritten in the ECM by following this procedure.

4. READ VIN

a. Confirm the vehicle VIN.

b. Connect Techstream to the DLC3.

c. Turn the ignition switch ON.

d. Turn the tester ON.



Seat belt warning system
(Front passenger side)



Transponder
key ECU



ECM



Key

Registration

Engine starting

-



Door control
transmitter



Door control
receiver

Register recognition
code

Wireless door lock operation

-

Inner rear view
mirror



Compass zone
setting



Compass
calibration



Register
transmitter code



Direction is not
displayed correctly



Garage door opener
system

-



Sliding roof
driver gear
(Sliding roof
ECU)



Sliding roof
housing



Sliding roof
glass

Initialize sliding roof
system



Auto operation



Jam protection function



Sliding roof operation
after ignition switch is
turned OFF



Key-linked operation
function (Driver side
door only)

-

2009 Toyota Tundra

2009 GENERAL INFORMATION Introduction - Tundra

e. Enter the following menus: Powertrain/Engine and ECT/Utility/VIN/VIN Read.

5. WRITE VIN

a. Confirm the vehicle VIN.

b. Connect Techstream to the DLC3.

c. Turn the ignition switch ON.

d. Turn the tester ON.

e. Enter the following menus: Powertrain/Engine and ECT/Utility/VIN/VIN Write.

6. RESET MEMORY

HINT:

The ECM memorizes the control conditions of the automatic transmission assembly and engine assembly.
Therefore, when the automatic transmission assembly, engine assembly, or ECM has been replaced, it is
necessary to reset the memory so that the ECM can memorize the new information. Reset procedure is as
follows.

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON and push the tester switch ON.

c. Enter the following menus:

1. Select: Powertrain/Engine and ECT/Utility/Reset Memory.

HINT:

The ECM learns through the ROAD TEST.

7. DESCRIPTION OF CODE REGISTRATION

It is necessary to register the transmitter ID in the tire pressure warning ECU when replacing the tire
pressure warning valve and transmitter and/or tire pressure warning ECU.

Prepare all transmitter ID data before starting registration.

a. Before registration

1. In case of tire pressure warning ECU replacement:



Read the registered transmitter IDs that are stored in the old ECU using the Techstream
and note them down.

NOTE:



Perform the RESET MEMORY (AT initialization) when replacing the
automatic transmission assembly, engine assembly or ECM.



The RESET MEMORY can be performed only with the Techstream.

NOTE:

After performing the RESET MEMORY, be sure to perform the
ROAD TEST described earlier.

2009 Toyota Tundra

2009 GENERAL INFORMATION Introduction - Tundra