550BN–01
I30146
3
4
2
1
ON (Continuity)
Low pressure side High pressure side
3,140 kpa196 kpa
(2.0 kgf/cm
2
28 psi)
(132.0 kgf/cm
2
455 psi)
OFF (No continuity) OFF (No continuity)
I30291
3
4
2
1
1,226 kpa
(12.5 kgf/cm
2
178 psi)
OFF
(No continuity)
ON
(Continuity)
1,520 kpa
(15.5 kgf/cm
2
220 psi)
–HEATER & AIR CONDITIONER AIR CONDITIONING SYSTEM
55–3
2318Author: Date:
2002 CAMRY REPAIR MANUAL (RM881U)
ON–VEHICLE INSPECTION
1. INSPECT PRESSURE SWITCH NO.1.
(a) Magnetic clutch control:
Inspect pressure switch operation.
(1) Set on the manifold gauge set.
(2) Connect the positive (+) lead from the ohmmeter to
terminal 4 and the negative (–) lead to terminal 1.
(3) Check continuity between terminals when refriger-
ant pressure is changed, as shown in the illustra-
tion.
If operation is not as specified, replace the pressure switch.
(b) Cooling fan control:
Inspect pressure switch operation.
(1) Connect the positive (+) lead from the ohmmeter to
terminal 2 and the negative (–) lead to terminal 3.
(2) Check continuity between terminals when refriger-
ant pressure is changed, as shown in the illustra-
tion.
If operation is not as specified, replace the pressure switch.
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