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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PARTS LOCATION ILLUSTRATION
*1 NO. 1 ENGINE ROOM RELAY BLOCK ASSEMBLY
- DEICER FUSE - ECU-IGP NO. 2 FUSE - DEICER RELAY
*2 WINDSHIELD DEICER WIRE (WINDSHIELD GLASS) ILLUSTRATION
*1 FRONT WIPER DEICER SWITCH
*2 AIR CONDITIONING AMPLIFIER ASSEMBLY
*3 AIR C
TERMINALS OF ECU
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 aux