Toyota Tundra. Manual — part 2616

HINT:



Perform the simulation method by selecting "check mode" (signal check) with the Techstream (see
CHECK MODE PROCEDURE ).



After selecting "check mode" (signal check), perform the simulation method by wiggling each connector
of the airbag system or driving the vehicle on various types of roads (see DIAGNOSIS SYSTEM ).

1. CHECK FRONT SEAT OUTER BELT RH (FRONT PRETENSIONER SQUIB RH)

a. Turn the ignition switch OFF.

b. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.

c. Disconnect the connectors from the front seat outer belt RH.

d. Connect the white wire side of SST (resistance: 2.1 fi) to connector C.

SST 09843-18061

e. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.

f. Turn the ignition switch ON, and wait for at least 60 seconds.

g. Clear the DTCs (see DTC CHECK/CLEAR ).

h. Turn the ignition switch OFF.

i. Turn the ignition switch ON, and wait for at least 60 seconds.

j. Check for DTCs (see DTC CHECK/CLEAR ).



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.

CAUTION: Never connect the tester to the front seat outer belt RH (front

pretensioner squib RH) for measurement. as this may lead to a
serious injury due to airbag deployment.

NOTE:



Do not forcibly insert SST into the terminals of the connector
when connecting SST.



Insert SST straight into the terminals of the connector.

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

Fig. 185: Identifying Front Seat Outer Belt RH (Front Pretensioner Squib RH)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Result

RESULT TABLE

HINT:

Codes other than DTC B1905, B1906, B1907, B1908 maybe output at this time, but they are not
related to this check.

B: REPLACE FRONT SEAT OUTER BELT ASSEMBLY RH (See FRONT SEAT OUTER BELT
ASSEMBLY (FOR REGULAR CAB) )

C: REPLACE FRONT SEAT OUTER BELT ASSEMBLY RH (See FRONT SEAT OUTER BELT
ASSEMBLY (FOR DOUBLE CAB) )

D: REPLACE FRONT SEAT OUTER BELT ASSEMBLY RH (See FRONT SEAT OUTER BELT

Result

Proceed to

DTC B1905, B1906, B1907 or B1908 is
not output (for Regular Cab)

A

DTC B1905, B1906, B1907 or B1908 is
not output (for Double Cab)

B

DTC B1905, B1906, B1907 or B1908 is
not output (for CrewMax)

C

DTC B1905, B1906, B1907 or B1908 is
output

D

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

ASSEMBLY (FOR CREWMAX) )

A: Go to next step

2. CHECK CONNECTOR

a. Turn the ignition switch OFF.

b. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.

c. Disconnect SST from connector C.

d. Check that the No. 2 floor wire connector (on the front seat outer belt RH side) is not damaged.

OK: The lock button is not disengaged, or the claw of the lock is not deformed or damaged.

NG: REPLACE NO. 2 FLOOR WIRE

OK: Go to next step

3. CHECK NO. 2 FLOOR WIRE (FRONT PRETENSIONER SQUIB RH CIRCUIT)

a. Disconnect the connectors from the center airbag sensor.

b. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.

c. Turn the ignition switch ON.

d. Measure the voltage according to the value(s) in the table below.

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION TABLE

e. Turn the ignition switch OFF.

f. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.

g. Measure the resistance according to the value(s) in the table below.

Tester Connection

Switch Condition Specified Condition

Q2-1 (R+) - Body ground

Ignition switch ON

Below 1 V

Q2-2 (R-) - Body ground

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

Fig. 186: Identifying No. 2 Floor Wire (Front Pretensioner Squib RH Circuit)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

h. Release the activation prevention mechanism built into connector B (see DIAGNOSIS

SYSTEM ).

i. Measure the resistance according to the value(s) in the table below.

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

NG: REPLACE NO. 2 FLOOR WIRE

OK: Go to next step

4. CHECK CENTER AIRBAG SENSOR

a. Connect the connectors to the front seat outer belt RH and the center airbag sensor.

Tester Connection Condition Specified Condition

Q2-1 (R+) - Q2-2 (R-) Always

Below 1 ohms

Tester Connection

Condition Specified Condition

Q2-1 (R+) - Q2-2 (R-)

Always

1 Mohms or higher

Q2-1 (R+) - Body ground

Q2-2 (R-) - Body ground

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra