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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     DC/DC Converter Internal Electronic Failure (P1CCC49)

    DESCRIPTION The DC/DC converter converts the voltage from the HV battery to supply power to the vehicle lights, audio system and various ECUs, etc. At the same time, it performs charging of the auxiliary battery, controlling the output voltage to maintain a specific voltage at the auxiliary batte

     Lost Communication with Brake System Control Module Missing Message (U012987,U014087,U015587,U111787)

    DESCRIPTION These DTCs are stored when there is a CAN communication malfunction between the certification ECU (smart key ECU assembly), skid control ECU (brake actuator assembly), ECM, main body ECU (multiplex network body ECU) or combination meter assembly, and data from the option connector (bus b

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