Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Precaution

Toyota Corolla Cross (2022-2025) Service Manual / Power Source & Network / Power Distribution / Power Integration System / Precaution

PRECAUTION

PRECAUTION FOR POWER DISTRIBUTION BOX ASSEMBLY

(a) Do not remove or install the 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.

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

(c) Some loads are connected to circuits with dedicated overcurrent protection. Therefore, do not use parts other than those specified for the vehicle.

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

(e) Confirm that all related systems are operating normally before proceeding with troubleshooting.

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     Parts Location

    PARTS LOCATION ILLUSTRATION *1 for HEV Model - - *3 NO. 1 ENGINE ROOM RELAY BLOCK - INP STD NO. 1 - INP STD NO. 2 -

     System Diagram

    SYSTEM DIAGRAM

     System Description

    SYSTEM DESCRIPTION LOAD OPERATION OUTPUT (a) Load is turned on or off according to the operation signals and switch signals from each ECU. Components Power Distribution Box

    SEE MORE:

     Check Bus 5 Line

    DESCRIPTION Symptom Trouble Area There are ECUs or sensors that display a communication stop on the bus diagnostic screen. Or, there are ECUs or sensors that display communication stop history on the "Detail" screen. CAN main

     Parking Brake System

    Precaution PRECAUTION NOTICE: If the battery is connected, the parking brake will operate when the electric parking brake switch assembly is pulled to the lock side even if the ignition switch is off. Do not operate the electric parking brake switch assembly with the battery conn

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