Toyota Corolla Cross: General
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GENERAL INFORMATION
A large number of ECU controlled systems are used in this vehicle. In general,
ECU controlled systems are considered to be very intricate, requiring a high
level of techn
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DESCRIPTION The headlight ECU sub-assembly operates using the power source voltage input from the IGR terminal and ECUB terminal.
The power source voltage of the ECUB terminal is supplied when the main body ECU (multiplex network body ECU) turns the ECUB power supply relay (H-LP LH relay and H-LP R
DESCRIPTION The main body ECU (multiplex network body ECU) controls operation of the DOME CUT relay in order to supply power to the interior lights. When the battery saving function operates while the interior lights are on, the main body ECU (multiplex network body ECU) opens the DOME CUT relay to