Can Communication System: Precaution

HANDLING PRECAUTIONS ON STEERING SYSTEM
1. Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazardous driving.
HANDLING PRECAUTIONS ON SRS AIRBAG SYSTEM
1. This vehicle is equipped with a Supplemental Restraint System (SRS), which includes a driver airbag and front passenger airbag. Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the SRS article on (See SUPPLEMENTAL RESTRAINT SYSTEM ).
WIRE HARNESS REPAIR
1. After repairing the wire bus line with solder, wrap the repaired part with vinyl tape.
  NOTE:
  - The CANL bus line and CANH bus line must always be installed. When installing the lines, make sure to twist them.
  - The difference in length of the CANL bus line and CANH bus line should be less than 100 mm (3.93 in.).
  - Untwisted parts near the connector should be less than 80 mm (3.15 in.).
  Fig 1: Wire Harness Repair
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Do not perform by-pass wiring between the connectors.
  NOTE: If you perform by-pass wiring, the characteristic of the twisted wire harness will be lost.
  
  Fig 2: Precautions For 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 back of the connector.
  
  Fig 3: Inserting Tester Probes Into Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. If checking the resistance from the back of the connector is not possible, use a repair wire to check it.
  
  Fig 4: Checking Resistance From Back Of Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002