Blower Motor Relay: Testing and Inspection

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.

Blower Motor Relay, Type 1:

Blower Motor Relay, Type 2: