Blower Motor Relay: Testing and Inspection

Power Relay Test

Use this chart to identify the type of relay, then do the test listed for it.




Normally-open type B

Check for continuity between the terminals.

- There should be continuity between the No. 1 and No. 3 terminals when power and ground are connected to the No. 2 and No. 4 terminals.
- There should be no continuity between the No. 1 and No. 3 terminals when power is disconnected.