Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: 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

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     Installation

    INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION) Procedure Part Name Code 1 CLEAN WINDSHIELD GLASS SUB-ASSEMBLY - - - 2 NO. 1 WINDSHIELD GLASS STOPPER 56115A - - 3 NO. 2 WINDSHIELD GLASS STOPPER

     Fuel Pump Control Module Internal Electronic Failure (P064A49)

    MONITOR DESCRIPTION The fuel pump control ECU has a self-diagnosis function. If there is an internal malfunction, the fuel pump control ECU sends a malfunction signal to the ECM via the FPC drive circuit. Based on the signal, the ECM judges that there is a malfunction in the fuel pump control ECU

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