Toyota Prius 2010 Repair Manual page 370

2. FUNCTION OF MAIN COMPONENTS
(a) The solar ventilation system consists of the following components:
Component
Moon roof glass
assembly (solar panel)
Solar ventilation ECU
Solar ventilation switch
Solar ventilation relay
Blower motor
A/C amplifier
Air inlet control servo
motor
Air outlet control servo
motor
2010 Toyota Prius
Generates power from sunlight and supplies system power to the solar ventilation
ECU.
Activated by power generated by the moon roof glass assembly (solar panel).
Activates the solar ventilation system by receiving an on signal from the solar
ventilation switch and an off signal from the vehicle power switch.
Sends a solar ventilation system condition signal to the A/C amplifier.
Operates the blower motor when the solar ventilation system is turned on.
Turns the solar ventilation system on or off.
Switches the power supply source for the blower motor between the auxiliary battery
and solar ventilation ECU according to the power switch condition.
Performs ventilation when the power switch is off based on instructions from the
solar ventilation ECU.
Changes its speed according to the amount of sunlight received by the moon roof
glass assembly (solar panel).
Activates the air outlet control servo motor and air inlet control servo motor
according to the signals from the solar ventilation ECU.
Receives solar ventilation system condition signal from the solar ventilation ECU
and sends a solar ventilation system condition signal via CAN.
Switches the inlets to fresh air mode based on signals from the A/C amplifier.
Switches the outlets to face mode based on signals from the A/C amplifier.
Function
Repair Manual