Toyota Tundra. Manual — part 264

2009 ACCESSORIES & EQUIPMENT

CAN Communication - Tundra

CAN COMMUNICATION SYSTEM

PRECAUTION

1. STEERING SYSTEM HANDLING PRECAUTIONS

a. Care must be taken when replacing parts. Incorrect replacement could affect the performance of the

steering system and result in hazards when driving.

2. SRS AIRBAG SYSTEM HANDLING PRECAUTIONS

a. This vehicle is equipped with an SRS (Supplemental Restraint System) such as the driver airbag

and front passenger airbag. Failure to carry out service operations in the correct sequence could
cause unexpected SRS deployment during servicing and may lead to a serious accident. Before
servicing (including installation/removal, inspection and replacement of parts), be sure to read the
precautionary notice for the supplemental restraint system (see PRECAUTION ).

3. BUS LINE REPAIR

a. After repairing the bus line with solder, wrap the repaired part with vinyl tape (see ELECTRONIC

CIRCUIT INSPECTION PROCEDURE ).

b. Do not use by-pass wiring between the connectors.

NOTE:



The CANL bus line and CANH bus line must be installed
together.



When installing the CAN bus lines, twist them together.



CAN bus lines are likely to be influenced by noise if the bus
lines are not twisted together.



The difference in length between the CANL bus line and CANH
bus line should be less than 100 mm (3.94 in.).



Leave approximately 80 mm (3.15 in.) loose in the twisted wires
around the connectors.

Fig. 1: Repairing Bus Line With Solder
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

The feature of the twisted wire harness will be lost if by-pass wiring

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 2: Identifying Caution For Do Not Use By-Pass Wiring Between Connectors
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4. CONNECTOR HANDLING

a. When inserting tester probes into a connector, insert them from the rear of the connector.

Fig. 3: Inserting Tester Probes Into Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Use a repair wire to check the connector if it is impossible to check resistance from the rear of the

connector.

Fig. 4: Checking Resistance From Rear Of Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

PARTS LOCATION

is used.

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 5: Identifying CAN Communication System Components (1 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra

Fig. 6: Identifying CAN Communication System Components (2 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra