Test - Thermostat Switch / Relay
15-60prose procedureThermostat Switch
Dip the evaporator sensor into a pan filled with ice water, and check for continuity between the terminals.
| Specification | Value |
|---|---|
| Cut off | 1.5 - -0.5°C (35-33°F) |
| Cut in | 2.5-5°C (36-41°F) |
Cut off
1.5 - -0.5°C (35-33°F)
Cut in
2.5-5°C (36-41°F)
If cut off or cut in temperature is too low or too high, replace the thermostat switch.
Relay
NOTE
All A/C system relays are similar.
- 1Check for continuity between terminals 1 and 3.

- 2Connect a 12 V battery across terminals 2 and 4. There should be continuity between terminals 1 and 3.

