Toyota Prius 2010 Repair Manual page 171

OK:
Blower motor operates and blower motor speed level changes.
Result:
OK
NG (Blower motor does not operate)
(w/o Solar ventilation system)
NG (Blower motor does not operate)
(w/ Solar ventilation system)
NG (Blower motor operates but does not change speed)
(w/o Solar ventilation system)
NG (Blower motor operates but does not change speed)
(w/ Solar ventilation system)
CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - A/C AMPLIFIER, SOLAR
E
VENTILATION ECU)
D
INSPECT A/C AMPLIFIER
C
INSPECT SOLAR VENTILATION RELAY
B
CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - BODY GROUND)
A
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
2. CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - BODY GROUND)
(b) Measure the resistance according to the value(s) in the table below.
2010 Toyota Prius
Result
(a) Disconnect the blower motor connector.
Proceed to
A
B
C
D
E
Repair Manual