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Accessory Relay

  1. Turn ignition off. Remove accessory relay from fuse junction panel. Connect a jumper wire between battery positive terminal and relay terminals No. 1 and 5. See Fig 1 .
  2. Voltage should not be present at relay terminal No. 3. Using another jumper wire, ground relay terminal No. 2. Battery voltage should be present at relay terminal No. 3. If voltage is as specified, remove jumper wires and go to next step. If voltage is not as specified, replace relay.
  3. Connect jumper wires between battery positive terminal and relay terminals No. 1 and 7. Voltage should not be present at relay terminal No. 6. Using another jumper wire, ground relay terminal No. 2. Battery voltage should be present at relay terminal No. 6. If battery voltage is not present, replace relay.
Fig 1: Identifying Accessory Relay Terminals
G95B35833Courtesy of FORD MOTOR CO.