Lexus IS250 IS220d GSE20 ALE20 - CAN COMMUNICATION


CAN COMMUNICATION SYSTEM (for LHD) - PRECAUTION

1.STEERING SYSTEM HANDLING PRECAUTIONS

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

2. SRS AIRBAG SYSTEM HANDLING PRECAUTIONS

This vehicle is equipped with an SRS (Supplemental Restraint System) which includes components 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 precautionary notice for the Supplemental Restraint System .

3.BUS LINE REPAIR
Can Communication System (For Lhd) - Precaution. CAN COMMUNICATION. Lexus IS250 IS220d GSE20 ALE20

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

  • NOTICE:
The CANL bus line and CANH bus line must be installed together all the times.
When installing, make sure to twist them.
CAN bus lines are likely to be influenced by electrical noise if they are not twisted.
The difference in length between the CANL bus line and CANH bus line should be 100 mm (3.937 in.) or less.
Leave approximately 80 mm (3.150 in.) loose in the twisted wires around the connector.
Can Communication System (For Lhd) - Precaution. CAN COMMUNICATION. Lexus IS250 IS220d GSE20 ALE20

Do not use bypass wiring between the connectors.

  • NOTICE:
  • The ability of the twisted bus lines to resist interference will be lost if bypass wiring is used.
4.CONNECTOR HANDLING
Can Communication System (For Lhd) - Precaution. CAN COMMUNICATION. Lexus IS250 IS220d GSE20 ALE20

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

Can Communication System (For Lhd) - Precaution. CAN COMMUNICATION. Lexus IS250 IS220d GSE20 ALE20

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

5.PRECAUTION FOR DISCONNECTING THE BATTERY TERMINAL
  • NOTICE:
When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.
System NameSee procedure
Power Window Control System
Parking Assist Monitor System
Perform the RESET MEMORY (AT initialization) operation after replacing the automatic transmission assembly, engine assembly, or ECM.
  • HINT:
  • RESET MEMORY cannot be completed by disconnecting the battery terminal.
LEXUS IS250, IS220d / GSE20 ALE20
CAN COMMUNICATION
Lexus IS250 IS220d GSE20 ALE20
CAN COMMUNICATION SYSTEM for LHD