LS 460 RWD V8-4.6L (1UR-FSE) (2010)
(a) This method uses a manifold gauge set to locate problem areas. Read the manifold gauge pressure when these conditions are established.
Test conditions:
Temperature at the air inlet is 30 to 35°C (86 to 95°F).
Engine is running at 1500 rpm.
All doors are fully open.
Blower speed control switch is at HI.
A/C switch is ON.
Gauge readings (Reference).
(1) Normally functioning refrigeration system
Gauge reading:
(2) The A/C system periodically changes between normal and improper function due to moisture in the refrigerant system.