CAN Communication System

NETWORKING: CAN COMMUNICATION SYSTEM: PRECAUTION

1. PRECAUTIONS FOR STEERING SYSTEM HANDLING

(a) Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazardous driving.

2. PRECAUTIONS FOR SRS AIRBAG SYSTEM HANDLING

(a) This vehicle is equipped with an SRS (Supplemental Restraint System) which includes parts 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 removal or installation of parts, inspection or replacement), be sure to read the precaution for Supplemental Restraint System Service Precautions.

3. BUS LINE REPAIR

(a) After repairing a bus wire with solder, wrap the repaired part with electrical tape.





NOTICE:
* The CANL bus wire and CANH bus wire must be installed together all the times.
* When installing, make sure that these wires are twisted, because CAN bus wires are likely to be influenced by electrical noise if the bus wires are not twisted.
* The difference in length between the CANL bus wire and CANH bus wire should be 100 mm (3.94 in.) or less.
* Leave approximately 80 mm (3.15 in.) loose in the twisted wires around the connector.

(b) Do not use a bypass wire between the connectors.





NOTICE:
The ability of the twisted bus wires to resist interference will be lost if bypass wiring is used.

4. CONNECTOR HANDLING

(a) When checking resistance with a tester, insert the tester probes from the backside (harness side) of the connector.





(b) Use a service wire to check the connector if it is impossible to check continuity from the rear of the connector.