Toyota Tundra. Manual — part 2773

TIRE PRESSURE MONITOR TABLE

f. Check the ID number on the identified transmitter by removing it from the tire and wheel.

Fig. 27: Identifying Pressure Warning Valve & Transmitter
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

g. Confirm that the ID number on the transmitter and recorded transmitter ID match.

Result

RESULT TABLE

Tester

Display

Measurement

Item/Display

Normal Condition

Diagnostic Note

Registered ID1

Code

Registered ID1
code/
min.: 0
max.: FFFFFFFF*

The ID No. registered in the
transmitter ID1 is displayed

*: Displayed only when the
ID No. is not registered.

Registered ID2

Code

Registered ID2
code/
min.: 0
max.: FFFFFFFF*

The ID No. registered in the
transmitter ID2 is displayed

*: Displayed only when the
ID No. is not registered.

Registered ID3

Code

Registered ID3
code/
min.: 0
max.: FFFFFFFF*

The ID No. registered in the
transmitter ID3 is displayed

*: Displayed only when the
ID No. is not registered.

Registered ID4

Code

Registered ID4
code/
min.: 0
max.: FFFFFFFF*

The ID No. registered in the
transmitter ID4 is displayed

*: Displayed only when the
ID No. is not registered.

Result

Proceed to

Match

A

Do not match

B

2009 Toyota Tundra

2009 SUSPENSION Tire & Wheel - Tundra

B: Go to step 4

A: Go to next step

3. REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

a. Replace the tire pressure warning valve and transmitter (See REMOVAL ).

4. REGISTRATION OF TRANSMITTER ID

a. Perform REGISTRATION .

5. PERFORM INITIALIZATION

a. Perform INITIALIZATION ).

6. CONFIRM TIRE INFLATION PRESSURE (DATA LIST) (See DTC C2126/26: TRANSMITTER

ID NOT RECEIVED IN MAIN MODE )

B : END

A : Go to next step

7. REPLACE TIRE PRESSURE WARNING ANTENNA AND RECEIVER

a. Replace the tire pressure warning antenna and receiver (See REMOVAL ).

8. CONFIRM TIRE INFLATION PRESSURE (DATA LIST) (See DTC C2126/26: TRANSMITTER

ID NOT RECEIVED IN MAIN MODE )

B: END

A: REPLACE TIRE PRESSURE WARNING ECU (See REMOVAL )

DTC C2141/41, C2142/42, C2143/43, C2144/44: TRANSMITTER ID1 ERROR; TRANSMITTER ID2
ERROR; TRANSMITTER ID3 ERROR; TRANSMITTER ID4 ERROR

DESCRIPTION

When the internal circuit of a tire pressure warning valve and transmitter is malfunctioning, one of these DTCs
is output.

DTC DETECTION CONDITION CHART

HINT:

DTC

Code

DTC Detection Condition

Trouble Area

C2141/41
C2142/42
C2143/43
C2144/44

The battery of the tire pressure warning valve and transmitter is
depleted or G-SW in the tire pressure warning valve and
transmitter is abnormal.



Tire pressure warning
valve and transmitter



Tire pressure warning
ECU

2009 Toyota Tundra

2009 SUSPENSION Tire & Wheel - Tundra

It is necessary to perform the procedure to identify the tire pressure warning valve and transmitter that is
malfunctioning because it cannot be identified by the output DTC.

INSPECTION PROCEDURE

1. IDENTIFY TRANSMITTER CORRESPONDING TO DTC

a. Set the tire pressures to the specified value(s) (See TIRE PRESSURE WARNING SYSTEM ).

b. Turn the ignition switch off.

c. Connect the Techstream to the DLC3.

d. Turn the ignition switch to ON and the Techstream on.

e. Enter the following menus: Chassis/Tire Pressure Monitor/Data List.

f. Display the "ID Tire Inflation Pressure" data for each wheel using the tester.

g. Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kgf/cm

2

, 5.8 psi) within 30

seconds. If "ID Tire Inflation Pressure" data displayed on the tester (ID1 to ID4) does not change,
the tire pressure warning valve and transmitter corresponding to the unchanged "ID Tire Inflation
Pressure" data is the cause of the output DTC.

HINT:



Identify the malfunctioning tire pressure warning valve and transmitter by repeatedly
decreasing the tire pressure for each tire.



Record which "ID Tire Inflation Pressure" data (ID1 to ID4) corresponds to which tire.

h. Check the Data List.

Tire Pressure Monitor

TIRE PRESSURE MONITOR TABLE

NOTE:



When replacing the tire pressure warning ECU, read the transmitter IDs
stored in the old ECU using the Techstream and write them down before
removal.



It is necessary to perform INITIALIZATION after REGISTRATION of the
transmitter IDs into the tire pressure warning ECU after the ECU and/or
valve and transmitter has been replaced.

Tester

Display

Measurement Item/Range

Normal

Condition

Diagnostic Note

ID1 Tire
Inflation

Pressure

ID1 tire inflation pressure /
min.: Absolute pressure/100 kPa
(1 kgf/cm

2

, 14 psi), Relative

pressure/0 kPa (0 kgf/cm

2

, 0 psi)

max.: Absolute pressure/449.35
kPa (4.5 kgf/cm

2

, 63 psi),

Relative pressure/349.35 kPa

Actual tire
inflation
pressure

If 100 kPa (1 kgf/cm

2

, 14 psi) for

the absolute pressure or 0 kPa (0
kgf/cm

2

, 0 psi) is displayed for the

relative pressure, the data has not
been received.*

2009 Toyota Tundra

2009 SUSPENSION Tire & Wheel - Tundra

Result

RESULT TABLE

(3.6 kgf/cm

2

, 51 psi)

ID2 Tire
Inflation

Pressure

ID2 tire inflation pressure/
min.: Absolute pressure/100 kPa
(1 kgf/cm

2

, 14 psi), Relative

pressure/0 kPa (0 kgf/cm

2

, 0 psi)

max.: Absolute pressure/449.35
kPa (4.5 kgf/cm

2

, 63 psi),

Relative pressure/349.35 kPa
(3.6 kgf/cm

2

, 51 psi)

Actual tire
inflation
pressure

If 100 kPa (1 kgf/cm

2

, 14 psi) for

the absolute pressure or 0 kPa (0
kgf/cm

2

, 0 psi) is displayed for the

relative pressure, the data has not
been received.*

ID3 Tire
Inflation

Pressure

ID3 tire inflation pressure /
min.: Absolute pressure/100 kPa
(1 kgf/cm

2

, 14 psi), Relative

pressure/0 kPa (0 kgf/cm

2

, 0 psi)

max.: Absolute pressure/449.35
kPa (4.5 kgf/cm

2

, 63 psi),

Relative pressure/349.35 kPa
(3.6 kgf/cm

2

, 51 psi)

Actual tire
inflation
pressure

If 100 kPa (1 kgf/cm

2

, 14 psi) for

the absolute pressure or 0 kPa (0
kgf/cm

2

, 0 psi) is displayed for the

relative pressure, the data has not
been received.*

ID4 Tire
Inflation

Pressure

ID4 tire inflation pressure /
min.: Absolute pressure/100 kPa
(1 kgf/cm

2

, 14 psi), Relative

pressure/0 kPa (0 kgf/cm

2

, 0 psi)

max.: Absolute pressure/449.35

kPa (4.5 kgf/cm

2

, 63 psi),

Relative pressure/349.35 kPa
(3.6 kgf/cm

2

, 51 psi)

Actual tire
inflation
pressure

If 100 kPa (1 kgf/cm

2

, 14 psi) for

the absolute pressure or 0 kPa (0

kgf/cm

2

, 0 psi) is displayed for the

relative pressure, the data has not
been received.*

HINT:
*: It may take up to about 5 to 6 minutes to update the tire pressure data. If the values are not
displayed after about 5 to 6 minutes, perform troubleshooting according to the inspection
procedure for DTCs C2121/21 to C2124/24 (See DTC C2121/21, C2122/22, C2123/23,
C2124/24, C2181/81, C2182/82, C2183/83, C2184/84: NO SIGNAL FROM TRANSMITTER
ID1; NO SIGNAL FROM TRANSMITTER ID2; NO SIGNAL FROM TRANSMITTER
ID3; NO SIGNAL FROM TRANSMITTER ID4; TRANSMITTER ID1 NOT RECEIVED
(TEST MODE DTC); TRANSMITTER ID2 NOT RECEIVED (TEST MODE DTC);
TRANSMITTER ID3 NOT RECEIVED (TEST MODE DTC); TRANSMITTER ID4 NOT
RECEIVED (TEST MODE DTC) ).

Condition

Detection Condition

"Tire Inflation Pressure" data (ID1 to ID4) changed. Normal
One of "Tire Inflation Pressure" data did not change. Transmitter corresponding to DTC

2009 Toyota Tundra

2009 SUSPENSION Tire & Wheel - Tundra