Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM

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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 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
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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HYDRAULIC TEST
PERFORM HYDRAULIC TEST
CAUTION:
Do not perform a stall test if there are any people or objects near the
vehicle.
The vehicle could begin moving suddenly, resulting in a serious accident.
Do not perform a stall test if any wheel chocks are out of position.
T
DESCRIPTION
While driving, if the heat generated by the transmission coupling assembly exceeds
a certain amount or if the estimated oil temperature of the transfer exceeds a certain
amount, the 4WD ECU assembly cancels 4WD control and stores DTC C1299.
DTC No.
Detection I