STEERING SYSTEM HANDLING PRECAUTIONS
Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazards when driving.
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 installation/removal, inspection and replacement of parts), be sure to read the precautionary notice for the Supplemental Restraint System Click here.
NAVIGATION SYSTEM PRECAUTIONS
Note
After turning the power switch off, waiting time may be required before disconnecting the cable from the auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the auxiliary battery terminal notice before proceeding with work Click here.
BUS LINE REPAIR
After repairing the bus line with solder, wrap the repaired part with vinyl tape Click here.
Note
The CANL bus line and CANH bus line must be installed together.
When installing the CAN bus lines, make sure to twist them.
CAN bus lines are likely to be influenced by noise if the bus lines are not twisted together.
Leave approximately 80 mm (3.15 in.) loose in the twisted wires around the connectors.
*1 | By-pass Wire |
Do not use by-pass wiring between the connectors.
Note
The protective effect of the twisted wire harness is lost if bypass wiring is used.
CONNECTOR HANDLING
*1 | Tester Probe |
When inserting probes into a connector, insert them from the rear of the connector.
*1 | Repair Wire |
Use a repair wire to check the connector if it is impossible to check resistance from the rear of the connector.
PRECAUTIONS WHEN REPLACING A GATEWAY FUNCTION EQUIPPED ECU (SUB BUS MONITOR ECU) WITH A USED ONE FROM ANOTHER VEHICLE
When a gateway function equipped ECU (network gateway ECU) that was previously installed on another vehicle is used as a replacement part, it is necessary to initialize the connection information stored in the ECU.
Note
If the connection information stored in a gateway function equipped ECU that was previously installed on another vehicle is different from the actual ECUs and sensors connected to the corresponding bus, communication DTCs will be detected.
Tech Tips
When an ECU is replaced with one from a vehicle with the same options and specifications (the same connections to the corresponding bus), initialization of ECU connection information is not necessary.
Initialize the connection information of a gateway function equipped ECU (sub bus monitor ECU)
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG).
Turn the intelligent tester on
Select one of the following items from the System Select menu: ECM Gateway, ECB* Gateway, Gateway (main body ECU) or WIL Gateway.
ECB*: Electronically Controlled Brake System
Select Initialization from Utility to initialize the ECU.