Toyota Tundra. Manual — part 2647

OCCUPANT DETECTION CONDITION TABLE

OK: Display changed correctly according to operation of buckle switch.

NG: Go to step 25

OK: Go to next step

17. CHECK CONNECTOR

a. Check that the connectors (on the center airbag sensor side and airbag cut-off switch side) are not

damaged.

OK: Connectors are not deformed or damaged.

NG: REPLACE NO. 2 FLOOR WIRE

OK: Go to next step

18. INSPECT AIRBAG CUT-OFF SWITCH

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

b. Disconnect the J33 switch connector.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

Tester Display

Measure Item/Range

Normal Condition

Diagnostic

Note

Passenger
Buckle SW

Passenger side buckle
switch/Set, Unset or NG

Set: Passenger side seat belt is
fastened
Unset: Passenger side seat belt is
unfastened
NG: Passenger side seat belt is
malfunctioning

-

Tester Connection Switch Condition Specified Condition

1 (PMC+) - 2 (PMC-)

OFF

80 to 120 ohms

ON

320 to 480 ohms

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

Fig. 228: Identifying Passenger Airbag Cut-Off Switch Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE AIRBAG CUT-OFF SWITCH (See CURTAIN SHIELD AIRBAG CUTOFF
SWITCH )

OK: Go to next step

19. INSPECT INSTRUMENT PANEL WIRE

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

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

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

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION TABLE

d. Turn the ignition switch OFF.

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

f. Using a service wire, connect terminals 11 (MSW+) and 12 (MSW-) of connector B.

Tester Connection

Switch Condition Specified Condition

J33-1 (PMC-) - Body ground

Ignition switch ON

Below 1 V

J33-2 (PMC+) - Body ground

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

Fig. 229: Identifying Instrument Panel Wire
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

h. Disconnect the service wire from connector B.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

NOTE:

Do not forcibly insert the service wire into the terminals of the
connector.

Tester Connection

Condition Specified Condition

J33-1 (PMC-) - J33-2 (PMC+) Always

Below 1 ohms

Tester Connection

Condition Specified Condition

J33-1 (PMC-) - J33-2 (PMC+)

Always

1 Mohms or higher

J33-1 (PMC-) - Body ground

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

NG: REPLACE INSTRUMENT PANEL WIRE

OK: Go to next step

20. CHECK INTEGRATION CONTROL AND PANEL (PASSENGER AIRBAG ON/OFF

INDICATOR)

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

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

c. The passenger airbag ON/OFF indicator (ON and OFF) comes on for approximately 4 seconds,

then turns off for approximately 2 seconds.

d. Approximately 6 seconds after the ignition switch is turned ON, check that the passenger airbag

ON/OFF indicator indicates ON/OFF according to the condition listed below.

Result

RESULT TABLE

OK: Passenger airbag ON/OFF indicator illuminates as specified in table above.

Result

RESULT TABLE

B: REPLACE CENTER AIRBAG SENSOR (See CENTER AIRBAG SENSOR ASSEMBLY (for
Column Shift Type) )

C: REPLACE CENTER AIRBAG SENSOR (See CENTER AIRBAG SENSOR ASSEMBLY (for
Floor Shift Type) )

J33-1 (PMC-) - Body ground

Front Seat Passenger

Passenger Airbag Cutoff

Switch Position

ON

Indicator

OFF

Indicator

SRS Warning

Light

Adult seated

ON

ON

OFF

OFF

Adult seated

OFF

OFF

ON

OFF

Child seated/Child
restraint system set

AUTO

OFF

ON

OFF

Child seated/Child
restraint system set

OFF

OFF

ON

OFF

Vacant

ON

OFF

OFF

OFF

Vacant

OFF

OFF

ON

OFF

Result

Proceed to

NG

A

OK (for Column Shift Type)

B

OK (for Floor Shift Type)

C

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra