Toyota Tundra. Manual — part 2576

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

Fig. 69: Identifying Door Side Airbag Sensor RH Circuit
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 11

OK: Go to next step

9. CHECK FOR DTC

a. Connect the connectors to the side airbag sensor RH.

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 stored in the memory (see DTC CHECK/CLEAR ).

e. Turn the ignition switch OFF.

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

Tester Connection

Condition Specified Condition

M9-1 (BCR-) - M9-2 (BCR+) Always

Below 1 ohms

Tester Connection

Condition Specified Condition

M9-1 (BCR-) - M9-2 (BCR+)

Always

1 Mohms or higher

M9-1 (BCR-) - Body ground

M9-2 (BCR+) - Body ground

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

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

OK: DTC B1625 is output.

HINT:

Codes other than B1625 maybe output at this time, but they are not related to this check.

Fig. 70: Identifying Side Airbag Sensor RH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE DOOR SIDE AIRBAG SENSOR RH (See SIDE AIRBAG SENSOR (for Regular
Cab) )

OK: Go to next step

10. CHECK SIDE AIRBAG SENSOR RH

a. Interchange the side airbag sensor LH with RH and connect the connectors to them.

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 stored in the memory (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 ).

Result

RESULT TABLE

Result

Proceed to

DTC B1620 and B1625 are not output

A

DTC B1625 is output (for Column Shift
Type)

B

DTC B1625 is output (for Floor Shift Type)

C

DTC B1620 is output

D

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

HINT:

Codes other than DTC B1620 and B1625 maybe output at this time, but they are not related to this
check.

h. Turn the ignition switch OFF.

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

j. Return the side airbag sensor LH and RH to their original positions and connect the connectors to

them.

Fig. 71: Identifying Side Airbag Sensor RH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

A: USE SIMULATION METHOD TO CHECK (See DIAGNOSIS SYSTEM )

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

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

D: REPLACE SIDE AIRBAG SENSOR RH (See SIDE AIRBAG SENSOR (for Regular Cab) )

11. CHECK NO. 2 FLOOR WIRE

a. Disconnect the No. 2 floor wire connector from the door wire RH.

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

Tester Connection

Switch Condition Specified Condition

MQ1-1 (BCR-) - Body ground

Ignition switch ON

Below 1 V

MQ1-2 (BCR+) - Body ground

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra

e. Turn the ignition switch OFF.

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

g. Using a service wire, connect terminals 1 (BCR+) and 2 (BCR-) of connector B.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

i. Disconnect the service wire from connector B.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

Fig. 72: Identifying No. 2 Floor Wire
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE NO. 2 FLOOR WIRE

OK: REPLACE DOOR WIRE RH

NOTE:

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

Tester Connection

Condition Specified Condition

MQ1-1 (BCR-) - MQ1-2 (BCR+) Always

Below 1 ohms

Tester Connection

Condition Specified Condition

MQ1-1 (BCR-) - MQ1-2 (BCR+)

Always

1 Mohms or higher

MQ1-1 (BCR-) - Body ground

MQ1-2 (BCR+) - Body ground

2009 Toyota Tundra

2009 RESTRAINTS Supplemental Restraint System - Tundra