Toyota Prius 2010 Repair Manual page 101

A
END
19. REPLACE A/C PRESSURE SENSOR
(a) Replace the A/C pressure sensor
HINT:
Since the A/C pressure sensor cannot be inspected while it is removed from the vehicle, replace the A/C
pressure sensor with a new or a known good one and check that the condition returns to normal.
NEXT
20. RECHECK FOR DTC
(a) Recheck for the DTC when the following conditions are satisfied.
Vehicle Doors
Temperature Setting
Blower Speed
A/C Switch
R/F Switch
Interior Temperature
NOTICE:
If refrigerant pressure on the high pressure line is excessive, this DTC will be set. Therefore, it is necessary to
measure the voltage over a period of time (approximately 10 minutes) because this DTC may be set after the
A/C has been operating for a while.
HINT:
When the outside air temperature is low (below -1.5°C (29.3°F)), the compressor stops due to signals from the
ambient temperature sensor and evaporator temperature sensor to prevent the evaporator from freezing. In this
case, perform the inspection in a warm indoor environment.
Result:
DTC B1423/23 is not output
DTC B1423/23 is output
B
REPLACE A/C AMPLIFIER
2010 Toyota Prius
.
Item
Result
Fully open
MAX COLD
HI
on
RECIRCULATION
25 to 35°C (77 to 95°F)
Condition
Proceed to
A
B
Repair Manual