Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

SYMPTOMS PROBABLE
CAUSE
DIAGNOSIS CORRECTIVE ACTIONS
performance
insufficient
close to 0 when connected to
gauge, create vacuum after
inspecting and repairing the
location of leakage
(4) When the circulation of the refrigerant is poor:
SYMPTOMS PROBABLE CAUSE DIAGNOSIS CORRECTIVE
ACTION
Pressure low on both low and
high pressure sides
Frost exists on piping from
condenser to A/C unit
Refrigerant flow obstructed by
dirt in condenser
Condenser
clogged
Replace
condenser
(5) When the refrigerant does not circulate:
SYMPTOMS PROBABLE CAUSES DIAGNOSIS CORRECTIVE ACTIONS
Vacuum indicated on
low pressure side, and
extremely low pressure
indicated on high
pressure side
Frost or condensation
seen on piping on both
sides of condenser or
expansion valve
Refrigerant flow
obstructed by
moisture or dirt in
refrigeration
system
Refrigerant flow
obstructed by gas
leakage from
expansion valve
Refrigerant
does not
circulate
Check expansion
valve
1.
Clean expansion
valve by blowing
air
2.
Replace
condenser
3.
Evacuate air and
charge
appropriate
volume of new
4.
cardiagn.com

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