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Can Communication System: Precaution

BUS LINE REPAIR
1. 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 at all times.
  - 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.
    
    Fig 1: Identifying Wire Harness Repair Area
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Do not use bypass wiring between the connectors.
  NOTE: The characteristic of the twisted wire harness will be lost if you use bypass wiring.
  
  Fig 2: Caution For Do Not Use By-Pass Wiring Between Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CONNECTOR HANDLING
1. 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, LICENSE AGREEMENT TMS1002
2. Use a repair wire to check the connector if it is impossible to check continuity from the rear of the connector.
  
  Fig 4: Checking Continuity From Rear Of Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PRECAUTION FOR DISCONNECTING BATTERY CABLE

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

SYSTEM REFERENCE

System Name	See procedure
Meter / Gauge System	INITIALIZATION
Front Power Seat Control System	INITIALIZATION