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Radiator Cooling Fan Relay: Inspection

  1. Disconnect negative (-) cable at battery.
  2. Remove radiator cooling fan relay No.1 (1), No.2 (2) and No.3 (3) from relay box. See Fig 1 .
  3. Check that there is no continuity between terminal "C" and "B". If there is continuity, replace relay.
  4. Connect battery positive (+) terminal to terminal "B" of relay. Connect battery negative (-) terminal "A" of relay. Check continuity between terminal "C" and "D". If there is no continuity when relay is connected to the battery, replace relay.
Fig 1: Locating Cooling Fan Relays
G00280739Courtesy of SUZUKI OF AMERICA CORP.