Mazda RX-8 Workshop Manual page 2695

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2011 - RX-8 - HVAC
REFRIGERANT PRESSURE SWITCH INSPECTION [MANUAL AIR CONDITIONER]
1. Connect the manifold gauge.
2. Verify the high-pressure side reading.
3. Disconnect the refrigerant pressure switch connector.
4. Verify continuity between the terminals of the refrigerant pressure switch.
If the continuity is not normal, replace the refrigerant pressure switch.