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Component Tests: Relays

  1. Remove radiator and condenser fan relays. On Accord, Civic, CR-V and S2000, condenser and radiator fan relays are located on vehicles left side inside underhood relay box near firewall. On Insight, condenser and radiator fan relays are located in underhood fuse/relay box right front inner fender. On Odyssey, condenser and radiator fan relays are located on vehicles left side inside underhood relay box. On Prelude, condenser fan relay is located on left front inner fender, and radiator fan relay is located on vehicles left side inside underhood relay box near firewall. SeeFig 1 .
  2. On all models, connect battery power to relay terminal No. 3, and connect terminal No. 4 to ground. See Fig 2 . Continuity should be present between relay terminals No. 1 and 2. No continuity should be present when battery power is disconnected.
Fig 1: Locating Cooling Fan Relay (Accord Is Shown, Others Are Similar)
G00015752Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Identifying Condenser & Radiator Fan Relay Connector Terminals
G00015751Courtesy of AMERICAN HONDA MOTOR CO., INC.