Defogger Relay Test

Remove defogger relay. See COMPONENT LOCATIONS . Apply battery voltage to terminal No. 2, and ground terminal No. 4. See Fig 1. Using a DVOM, ensure continuity exists between terminals No. 1 and 3. Ensure continuity does not exist between terminals No. 1 and 3 when battery voltage is removed.

Fig 1: Identifying Defogger Relay Terminals (Typical)

Courtesy of AMERICAN HONDA MOTOR CO., INC.