Toyota Tundra. Manual — part 2604

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 z5 connector from the steering pad.

d. Connect the white wire side of SST (resistance: 2.1 ohms) to connector E (black 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 B1810, B1811, B1812 or B1813 is not output.

HINT:

Codes other than DTC B1810, B1811, B1812, B1813 maybe output at this time, but they are not
related to this check.

CAUTION: Never connect the tester to the steering pad (driver side squib

2nd step) 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. 155: Identifying Steering Pad (Driver Side Squib 2nd Step)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 2

OK: REPLACE STEERING PAD (See STEERING PAD )

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 spiral cable connectors (on the steering pad side) are not damaged.

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

NG: REPLACE SPIRAL CABLE (See SPIRAL CABLE )

OK: Go to next step

3. CHECK DRIVER SIDE SQUIB 2ND STEP 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.

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

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.

Fig. 156: Identifying Driver Side Squib 2nd Step 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

Switch Condition Specified Condition

Z5-1 (D2-) - Body ground

Ignition switch ON

Below 1 V

Z5-2 (D2+) - Body ground

Tester Connection

Condition Specified Condition

Z5-1 (D2-) - Z5-2 (D2+) Always

Below 1 ohms

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

TESTER CONNECTION SPECIFIED CONDITION TABLE

NG: Go to step 5

OK: Go to next step

4. CHECK CENTER AIRBAG SENSOR

a. Connect the connectors to the steering pad 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. 157: Identifying Center Airbag Sensor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Result

RESULT TABLE

HINT:

Tester Connection

Condition Specified Condition

Z5-1 (D2-) - Z5-2 (D2+)

Always

1 Mohms or higher

Z5-1 (D2-) - Body ground

Z5-2 (D2+) - Body ground

Result

Proceed to

DTC B1810, B1811, B1812 or B1813 is
output (for Column Shift Type)

A

DTC B1810, B1811, B1812 or B1813 is
output (for Floor Shift Type)

B

DTC B1810, B1811, B1812 or B1813 is
not output

C

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra