Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: System Diagram

SYSTEM DIAGRAM

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     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

     On-vehicle Inspection

    ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: When working near the engine room while the engine has started or the power source mode is ignition switch to ON, do not touch the rotating

     Cooling Fan Circuit

    DESCRIPTION The ECM turns on or off the fan relays using signals calculated from the engine coolant temperature, air conditioning switch (on/off), air conditioning refrigerant pressure, engine speed a

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     Removal

    REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 DECK TRIM SIDE PANEL ASSEMBLY LH 64740C - - - 2 ROOF SIDE INNER GAR

     ECM Power Source Circuit

    DESCRIPTION When the ignition switch is turned to ON, the auxiliary battery voltage is applied to IGP of the ECM. When the transistor in the MREL circuit operates, current flows from the auxiliary battery to ground through the drive circuit of the EFI-MAIN NO. 1 relay, thus operating the relay which

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