Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

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16. REPLACE COOLER EXPANSION VALVE
(a) Replace the cooler expansion valve with a new one .
HINT:
R
eplace the cooler expansion valve with a new one because the cooler expansion valve is either stuck or
clogged.
17. CHARGE SYSTEM WITH REFRIGERANT
(a) Use a refrigerant recovery unit to recover refrigerant.
(b) Evacuate the A/C system.
(c) Add an appropriate amount of refrigerant.
for HFC-134a(R134a)
for HFO-1234yf(R1234yf)
HINT:
If refrigerant is added and the system has not been properly evacuated (insufficient vacuum time),
moisture in the air remaining in the system will freeze in the cooler expansion valve, blocking the flow on
the high pressure side. Therefore, in order to confirm the problem, recover the refrigerant and properly
evacuate the system. Add an appropriate amount of refrigerant, and check for the DTC.
18. RECHECK FOR DTC
(a) Recheck for DTCs when the following conditions are satisfied.
ITEM CONDITION
Vehicle Doors Fully open
Temperature Setting MAX COLD
Blower Speed HI
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