Dual Pressure Switch
WARNING: This page is about a different variant/trim than selected.
NOTE:
For information on A/C system operation, see appropriate A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
- Disconnect dual pressure switch harness connector. See Fig 1 . Using a fused jumper wire, jumper harness terminals together. Connect A/C manifold pressure gauges to low and high-side pressure service valves.
- Start engine and turn A/C on. Connect DVOM to dual pressure switch terminals. Observe pressure gauges. With A/C system at normal operating pressures, continuity should be present. Replace switch if continuity is not as specified. See DUAL PRESSURE SWITCH under REMOVAL & INSTALLATION.