Thermal Limiter Switch Test

For circuit descriptions and diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. The thermal limiter switch is calibrated to open and close as follows:
- Open circuit (no continuity) at 125 °C ± 3 °C (255 °F ± 5 °F).
- Closed circuit (continuity) at 110 °C ± 6 °C (230 °F ± 10 °F).

1. Unplug the wire harness connectors from the thermal limiter switch.
2. Use an ohmmeter to check for correct continuity, as indicated above, between the two thermal limiter switch terminals. If the continuity is incorrect, replace the faulty switch.