Blower Motor Relay
WARNING: This page is about a different car, the 1994 Mazda MX-6. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect blower motor relay. Using ohmmeter, check continuity between Blue wire and Blue/Red wire terminals of relay. Continuity should not exist. Check continuity between Black/White wire and Black/Blue wire terminals of relay. Ensure continuity exists.
- Apply battery voltage between Black/White wire and Black/Blue wire terminals of relay. Ensure continuity exists between Blue wire and Blue/Red wire terminals with voltage applied. If continuity is not as specified, replace relay.