Operation CHARM: Car repair manuals for everyone.

CAN Communication

CAN COMMUNICATION SYSTEM

PRECAUTION

1. BUS LINE REPAIR




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

NOTE:
- The CANL bus line and CANH bus line must be installed together, all the time.
- When installing, make sure to twist the lines.
- CAN bus lines are likely to be influenced by noise if the bus lines are not twisted.
- The difference in length of the CANL bus line and CANH bus line should be within 100 mm (3.94 in.)
- Make sure the length between each twist of the wire connecting the connectors is 80 mm (3.15 in.) or less.




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

NOTE: The feature of the twisted wire harness will be lost if you use by-pass wiring.

2. CONNECTOR HANDLING




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




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

3. PRECAUTION FOR DISCONNECTING BATTERY CABLE

NOTE: When disconnecting the cable from the negative (-) battery terminal, initialize the system after the cable is reconnected.

System Name
Meter / Gauge System
Variable Gear Ratio Steering System