Toyota Tundra. Manual — part 2555

HINT:

In the airbag system, the center airbag sensor, front airbag sensor LH and RH, side airbag sensor LH and RH,
door side airbag sensor LH and RH are collectively referred to as the airbag sensors.

1. HANDLING PRECAUTIONS FOR AIRBAG SENSORS

a. Before starting the following operations, wait for at least 90 seconds after disconnecting the

negative (-) terminal cable from the battery:

1. Replacement of the airbag sensors.

2. Adjustment of the front doors of the vehicle equipped with side airbags and curtain shield

airbags (fitting adjustment).

b. When connecting or disconnecting the airbag sensor connectors, ensure that each sensor is installed

in the vehicle.

c. Do not use airbag sensors which have been dropped during operation or transportation.

d. Do not disassemble the airbag sensors.

2. INSPECTION PROCEDURE FOR VEHICLE INVOLVED IN ACCIDENT

a. When the airbag has not deployed, confirm the DTCs by checking the SRS warning light. If there is



For minor collisions where SRS parts do not deploy, always inspect the
SRS parts.



Before performing repairs, remove airbag sensors if any kind of impact is
likely to occur to an airbag sensor during repairs.



Never use SRS parts from another vehicle. When replacing SRS parts,
replace them with new ones.



Never disassemble or attempt to repair SRS parts.



If an SRS part has been dropped, or if there are any cracks, dents or other
defects in the case, bracket or connector, replace the SRS part with a new
one.



Use an ohmmeter/voltmeter with high impedance (10 kohms/V minimum)
for troubleshooting the electrical circuits.



Information labels are attached to the periphery of SRS parts. Follow the
cautions and instructions on the labels.



After work on the SRS is completed, perform the SRS warning light check
(see DIAGNOSIS SYSTEM ).



When the cable is disconnected from the negative (-) battery terminal, the
memory settings of each system will be cleared. Because of this, be sure
to write down the settings of each system before starting work. When work
is finished, reset the settings of each system as before. Never use a
backup power supply from outside the vehicle to avoid erasing the
memory in a system.



If the vehicle is equipped with a mobile communication system, refer to
PRECAUTION .

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

any malfunction in the SRS airbag system, perform troubleshooting.

b. When any of the airbags have deployed, replace the airbag sensors and check the installation

condition.

3. SRS CONNECTORS

a. SRS connectors are located as shown below.

Fig. 1: Identifying SRS Connectors Communication Diagram (1 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

Fig. 2: Identifying SRS Connectors Communication Diagram (2 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

Fig. 3: Identifying SRS Connectors Communication Diagram (3 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

SRS CONNECTOR TERMINAL REFERENCE TABLE

No.

Item

Application

(1)

Terminal Twin-

Lock Mechanism

Connectors 21, 22,
23, 24, 25, 26, 35,
36, 37, 39

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra