Toyota Tundra. Manual — part 310

Fig. 161: Identifying A17 Skid Control ECU With Actuator Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (SKID CONTROL ECU
WITH ACTUATOR)

OK: REPLACE SKID CONTROL ECU WITH ACTUATOR (See REMOVAL )

6. CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (STEERING ANGLE SENSOR)

a. Disconnect the J6 steering angle sensor connector.

b. Reconnect the cable to the negative (-) battery terminal.

c. Select "CAN Bus Check" on the Techstream.

Result

RESULT REFERENCE

B: Go to step 8

A: Go to next step

7. CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (STEERING ANGLE SENSOR

Tester Connection

Switch Condition Specified Condition

A17-5 (CANH) - A17-4 (CANL) Ignition switch OFF

54 to 69 ohms

Result

Proceed

to

Steering Angle Sensor not displayed on Techstream.

A

Several ECUs and sensors other than Steering Angle Sensor not displayed on
Techstream.

B

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

BRANCH WIRE)

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

Standard resistance

STANDARD RESISTANCE SPECIFICATION TABLE

Fig. 162: Identifying J6 Steering Angle Sensor Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (STEERING ANGLE
SENSOR)

OK: REPLACE STEERING ANGLE SENSOR (See REMOVAL )

8. CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (BUS BUFFER ECU)

a. Disconnect the J59 bus buffer ECU connector.

b. Reconnect the cable to the negative (-) battery terminal.

c. Select "CAN Bus Check" on the Techstream.

Result

RESULT REFERENCE TABLE

Tester Connection

Switch Condition Specified Condition

J6-10 (CANH) - J6-9 (CANL) Ignition switch OFF

54 to 69 ohms

NOTE:

For vehicles without bus buffer ECU, go to step 10.

Result

Proceed

to

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

B: Go to step 10

A: Go to next step

9. CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (BUS BUFFER ECU BRANCH

WIRE)

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

Standard resistance

STANDARD RESISTANCE SPECIFICATION TABLE

Fig. 163: Identifying J59 Bus Buffer ECU Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (BUS BUFFER ECU)

OK: REPLACE BUS BUFFER ECU

10. CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (CENTER AIRBAG SENSOR)

a. Disconnect the J46 center airbag sensor connector.

b. Reconnect the cable to the negative (-) battery terminal.

c. Select "CAN Bus Check" on the Techstream.

Accessory Gateway not displayed on Techstream.

A

Several ECUs and sensors other than Accessory Gateway not displayed on
Techstream.

B

Tester Connection

Switch Condition Specified Condition

J59-3 (CAN+) - J59-2 (CAN-) Ignition switch OFF

54 to 69 ohms

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Result

RESULT REFERENCE TABLE

B: Go to step 12

A: Go to next step

11. CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (CENTER AIRBAG SENSOR

BRANCH WIRE)

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

Standard resistance

STANDARD RESISTANCE SPECIFICATION TABLE

Fig. 164: Identifying J46 Center Airbag Sensor Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CENTER AIRBAG
SENSOR)

OK: REPLACE CENTER AIRBAG SENSOR (See REMOVAL )

12. CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE (4WD CONTROL ECU)

Result

Proceed to

SRS Airbag not displayed on Techstream.

A

Several ECUs and sensors other than SRS Airbag not displayed on Techstream.

B

Tester Connection

Switch Condition Specified Condition

J46-13 (CANH) - J46-22 (CANL) Ignition switch OFF

54 to 69 ohms

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra