Toyota Yaris: Power Integration System / Precaution

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Power Source & Network / Power Distribution / Power Integration System / Precaution

PRECAUTION

PRECAUTION FOR SEMICONDUCTOR POWER INTEGRATION ECU

(a) Do not remove or install the semiconductor power integration ECU and power distribution box assembly with the negative (-) auxiliary battery terminal connected.

NOTICE:

  • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

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  • When disconnecting and reconnecting the auxiliary battery.

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(b) Make sure that the semiconductor power integration ECU and power distribution box assembly is not exposed to water, as it is not waterproof.

(c) Some load is connected to a dedicated circuit to prevent overcurrent. Therefore, parts other than those specified for the vehicle may not be able to be used.

(d) When replacing the semiconductor power integration ECU and power distribution box assembly, the system may not operate normally if the same part number is not used.

(e) Check that systems are operating normally before proceeding with troubleshooting.

    Power Integration System

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    Parts Location

    PARTS LOCATION ILLUSTRATION *1 SEMICONDUCTOR POWER INTEGRATION ECU *2 NO. 1 ENGINE ROOM RELAY BLOCK - STD P/I NO. 1 FUSE - INP STD NO. 1-1 FUSE ILLUSTRATION *1 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *2 POWER DISTRIBUTION BOX ASSEMBLY - ECU-IGR NO...

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    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Installation


    INSTALLATION CAUTION / NOTICE / HINT NOTICE: After performing the ECU configuration procedure and update ECU security key procedure, make sure to perform the initialization procedure for when the cable has been disconnected and reconnected to the negative (-) auxiliary battery terminal...

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    Problem Symptoms TablePROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table...

    Categories

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