Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM

READ NEXT:
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
SEE MORE:
DESCRIPTION The power distribution box assembly controls the instrument panel illuminations. WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
Before replacing the main body ECU (mult
DESCRIPTION The ECM and skid control ECU (brake actuator assembly) send and receive signals via CAN communication.
If a communication error occurs between the ECM and skid control ECU (brake actuator assembly), the ECM stores this DTC.
DTC No. Detection Item
DTC Detection Condition