Toyota Tundra. Manual — part 2602

of the airbag system or driving the vehicle on various types of roads (see CHECK MODE
PROCEDURE ).

1. CHECK FRONT PASSENGER AIRBAG (FRONT PASSENGER SIDE SQUIB)

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 passenger airbag.

d. Connect the white wire side of SST (resistance: 2.1 ohms) to connector E (orange connector).

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 ).

OK: DTC B1805, B1806, B1807 or B1808 is not output.

HINT:

Codes other than DTC B1805, B1806, B1807, B1808 maybe output at this time, but they are not
related to this check.

CAUTION: Never connect the tester to the front passenger airbag (front

passenger side squib) 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. 150: Identifying Front Passenger Airbag
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 2

OK: REPLACE FRONT PASSENGER AIRBAG ASSEMBLY (See REMOVAL )

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 E.

d. Check that the instrument panel wire connectors (on the front passenger airbag side) are not

damaged.

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

NG: REPLACE INSTRUMENT PANEL WIRE ASSEMBLY

OK: Go to next step

3. CHECK FRONT PASSENGER SIDE SQUIB 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

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

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.

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

Tester Connection

Switch Condition Specified Condition

I2-1 (P+) - Body ground

Ignition switch ON

Below 1 V

I2-2 (P-) - Body ground

Tester Connection Condition Specified Condition

I2-1 (P+) - I2-2 (P-) Always

Below 1 ohms

Tester Connection

Condition Specified Condition

I2-1 (P+) - I2-2 (P-)

Always

1 Mohms or higher

I2-1 (P+) - Body ground

I2-2 (P-) - Body ground

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

Fig. 151: Identifying Front Passenger Side Squib Circuit
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 5

OK: Go to next step

4. CHECK CENTER AIRBAG SENSOR

a. Connect the connectors to the front passenger airbag and 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, and wait for at least 60 seconds.

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

e. Turn the ignition switch OFF.

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

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

Fig. 152: Identifying Center Airbag Sensor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Result

RESULT TABLE

HINT:

Codes other than DTC B1805, B1806, B1807, B1808 maybe output at this time, but they are not
related to this check.

A: REPLACE CENTER AIRBAG SENSOR ASSEMBLY (See CENTER AIRBAG SENSOR

Result

Proceed to

DTC B1805, B1806, B1807 or B1808 is
output (for Column Shift Type)

A

DTC B1805, B1806, B1807 or B1808 is
output (for Floor Shift Type)

B

DTC B1805, B1806, B1807 or B1808 is
not output

C

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra