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 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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    DESCRIPTION If the air inlet mode cannot be changed between recirculation/fresh or exhaust gas odors can be smelled even though recirculation mode is selected, the following factors may be the cause. Symptom Factor Air inlet mode cannot be changed between recirculation/fresh

     Problem Symptoms Table

    PROBLEM 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. Check each symptom

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