Toyota Prius 2010 Repair Manual page 397

Solar Ventilation ECU Power Source Circuit
DESCRIPTION
For the solar ventilation system, the moon roof glass assembly (solar panel) generates electricity using sunlight
to generate the required power.
The electricity generated by the moon roof glass assembly (solar panel) is sent to the solar ventilation ECU and
used as the power source for the solar ventilation system.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. INSPECT MOON ROOF GLASS ASSEMBLY (SOLAR PANEL)
(a) Leave the vehicle for 10 minutes in a location where the following conditions are met, and then measure the
voltage.
System Operation Conditions Reference Table
Items
Amount of sunlight
Moon roof glass assembly (solar
panel) status
2010 Toyota Prius
A sufficient amount of sunlight is received by the moon roof glass assembly
(solar panel).
(The amount of sunlight on a cloudless day between 11:00 and 14:00 is
typically sufficient for operation.)
The moon roof glass assembly (solar panel) is not in the shade
No fallen leaves or dirt is present on the moon roof glass assembly (solar
Condition
Repair Manual