AC-32 AIR CONDITIONING SYSTEM — Pressure Switch, Water Temperature Switch PRESSURE SWITCH (See page AC-8) ON-VEHICLE INSPECTION 1. DISCONNECT CONNECTOR OF PRESSURE SWITCH 2. INSPECT PRESSURE SWITCH (a) Install the manifold gauge set. (See page AC-21) (b) Observe the gauge reading. (c) Check the continuity between two terminals of the pressure switch shown in the below. Dual Pressure Switch 2.1 kg/cm² 27 kg/cm² (30 psi, 206 kPa) (384 psi, 2,648 kPa) ON │ │ ON (Continuity) │ │ │ │ OFF │ │ OFF (No continuity) │ │ 2.35 kg/cm² 21.0 kg/cm² (33 psi, 230 kPa) (299 psi, 2,059 kPa) AC1M6 If defective, replace the pressure switch. WATER TEMPERATURE SWITCH HINT: The water temperature switch is under the heater radiator. INSPECTION OF WATER TEMPERATURE NSWITCH NO. 1 INSPECT SWITCH CONTINUITY Terminals 1 2 3 4 Water Temp. 15°C (59°F) or below No continuity 25°C (77°F) or more ○─────────────────○ 45°C (113°F) or more ○─────○────○───────○ 15°C 25°C ON ┌──┬──┐ │ 1 2 │ OFF │ 4 3 │ └──┴──┘ 35°C 45°C ON OFF AC1386