PRECAUTION
PRECAUTION WHEN REPLACING CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)
(a) When the central gateway ECU (network gateway ECU) is replaced, update the ECU security key.
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PRECAUTIONS FOR DISCONNECTING CABLE FROM NEGATIVE (-) AUXILIARY BATTERY TERMINAL
NOTICE:
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HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
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CAN COMMUNICATION SYSTEM TROUBLESHOOTING
(a) Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.
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(b) Precaution for steering system handling
(1) Be careful when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazardous driving.
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(c) Precaution for SRS airbag system handling
NOTICE:
This vehicle is equipped with a Supplemental Restraint System (SRS) which includes parts such as airbags for the driver and front passenger. Failure to carry out service operations in the correct sequence could cause unexpected SRS deployment during servicing and may cause a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read Precaution for SRS.
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(d) Precaution for when disconnecting a wire harness from a CAN junction connector
(1) When disconnecting a wire harness from a CAN junction connector, use tape or tags to identify each connector and make sure to reconnect each connector to its original location on the CAN junction connector.
HINT:
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(e) Bus line repair
(1) After repairing a bus line with solder, wrap the repaired area with electrical tape.
*a |
Soldered Area to Be Wrapped with Electrical Tape |
NOTICE:
(2) Do not use bypass wiring between connectors.
*a |
Bypass Wire |
NOTICE:
(f) Connector handling
(1) When checking resistance with a tester, insert the tester probes from the backside (harness side) of the connector.
*a |
Tester Probe |
(2) When it is not possible to insert the tester from the backside of the connector, using service wires, measure from the front side of the connector.
*a |
Service Wire |
(g) Precaution for when replacing a gateway function equipped ECU (sub bus monitoring ECU)
(1) When replacing a gateway equipped function ECU (sub bus monitoring ECU) with one which was installed to another vehicle, perform initialization of the sub bus monitoring ECU in order to clear stored bus information.
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NOTICE:
If the stored bus information does not match the current sub bus configuration, DTCs may be stored and fail-safe functions may operate.
HINT:
It is not necessary to perform initialization of a gateway monitoring ECU (sub bus monitoring ECU) when using a sub bus monitoring ECU which was installed to another vehicle with the same sub bus configuration.
(h) Precautions for when a gateway function equipped ECU (sub bus monitor ECU) detects communication DTCs for ECUs not connected to the ECU
(1) Refer to precautions when replacing a gateway function equipped ECU (sub bus monitoring ECU) and initialize the connection information of the ECU.
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(2) Clear the DTCs and check that no DTCs are output.
(i) Difference between genuine navigation receivers/radio and display receivers and optional navigation receivers/radio and display receivers
(1) Some optional navigation receivers/radio and display receivers are available as CAN compatible devices. Be aware that some optional navigation receivers/radio and display receivers do not have the same diagnostic features or characteristics of genuine navigation receivers/radio and display receivers.
NOTICE:
SENSOR EXPRESSIONS
(a) The descriptions for the blind spot monitor sensors differ depending on the system. The expressions listed in the table below are used in this Repair Manual.
Part Name |
Actual Part Name |
---|---|
Blind spot monitor sensor LH (B) |
Blind spot monitor sensor LH |
Blind spot monitor sensor RH (A) |
Blind spot monitor sensor RH |