Toyota Prius 2010 Repair Manual page 68

DIAGNOSTIC TROUBLE CODE CHART
HINT:
When the air conditioning system functions properly, DTC 00 is output.
Air Conditioning System
DTC Code Detection Item
Room Temperature Sensor
B1411/11*1
Circuit
Ambient Temperature Sensor
B1412/12*2
Circuit
Evaporator Temperature
B1413/13
Sensor Circuit
B1423/23 Pressure Sensor Circuit
Air Mix Damper Control
B1441/41 Servo Motor Circuit
(Passenger Side)
2010 Toyota Prius
Trouble Area
1. Room temperature sensor
2. Harness or connector between room
temperature sensor and A/C amplifier
3. A/C amplifier
1. Ambient temperature sensor
2. Harness or connector between ambient
temperature sensor and A/C amplifier
3. A/C amplifier
1. Evaporator temperature sensor
2. Air conditioning harness
3. A/C amplifier
1. A/C pressure sensor
2. Harness or connector between A/C pressure
sensor and A/C amplifier
3. A/C amplifier
4. Expansion valve (blocked, stuck)
5. Condenser (blocked, deterioration of
cooling capacity due to dirt)
6. Cooler dryer (moisture in the refrigerant
cycle cannot be absorbed)
7. Cooling fan system (condenser cannot be
cooled down)
8. A/C system (leaks, blocked)
1. Air mix control servo motor
See
Memory*4
page
Memorized
(4 sec. or
more)
Memorized
(4 sec. or
more)
Memorized
(4 sec. or
more)
-
Memorized
(30 sec. or
Repair Manual