Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

(1) When the refrigerant volume is proper:
Gauge reading:
Low pressure side:
150 to 250 kPa (1.5 to 2.5 kgf/cm
2
, 22 to 36 psi)
High pressure side:
1370 to 1570 kPa (14.0 to 16.0 kgf/cm
2
, 199 to 228 psi)
(2) When there is moisture in the refrigeration system:
SYMPTOMS PROBABLE CAUSE DIAGNOSIS CORRECTIVE ACTIONS
During operation,
pressure on low
pressure side
cycles between
normal and
vacuum
Moisture in refrigeration
system freezes at
expansion valve orifice,
causing temporary stop of
cycle. However, when
melted, normal state
restored
Drier overly saturated
Moisture in
refrigeration system
freezes at expansion
valve orifice and
blocks refrigerant
circulation
Remove
moisture from
cycle by
repeatedly
evacuating air
1.
Supply
appropriate
volume of new
refrigerant
2.
(3) When cooling is insufficient:
SYMPTOMS PROBABLE
CAUSE
DIAGNOSIS CORRECTIVE ACTIONS
Pressure low on
both low and high
pressure sides
Cooling
Gas leakage
from
refrigeration
system
Insufficient
refrigerant
Refrigerant
leakage
Check for gas leakage and
repair if necessary
1.
Supply appropriate volume
of new refrigerant
2.
If indicated pressure value3.
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