Toyota Prius 2010 Repair Manual page 399

(c) Turn the power switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Air Conditioner / Data List.
(f) Check the value(s) by referring to the table below.
(1) Check that the Solar Voltage value in the Data List is 10 V or higher.
Air Conditioner
Tester
Display
Solar panel voltage /
Solar Variable, 10V les, 10V-11V, 11V-12V, 12V-13V, 13V-
Voltage 14V, 14V-15V, 15V-16V, 16V-17V, 17V-18V, 18V-
19V, 19V-20V, 20V-21V, 21V-22V, 22V-23V or 23V
ovr
OK:
10 V or higher
HINT:
If the Data List items are not displayed, inspect the communication circuit between the solar ventilation ECU
and A/C amplifier
NG
REPLACE SOLAR VENTILATION ECU
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
CHECK HARNESS AND CONNECTOR (SOLAR VENTILATION ECU - SOLAR PANEL, BODY
3.
GROUND)
2010 Toyota Prius
Measurement Item/Range
.
(a) Disconnect the solar ventilation ECU connector.
Normal
Condition
System operation
Actual generated
conditions reference
voltage
displayed
table are met
Diagnostic Note
.
Repair Manual