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EFI Main Relay

NOTE: EFI main relay may also be referred to as EFI relay.
  1. Ensure ignition is off. Remove EFI main relay from relay box at driver's side front corner of engine compartment, near battery.
  2. To test EFI main relay continuity, use ohmmeter to check continuity between specified terminals. See Fig 1 and Fig 2.
  3. To test EFI main relay operation, apply battery voltage and ground to relay and use ohmmeter to check continuity between specified terminals. See Fig 1 and Fig 2. Replace EFI main relay if defective.
Fig 1: Testing Circuit Opening Relay Or EFI Main Relay (Vehicles With Bosch Relay)
G97I06483Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Testing Circuit Opening Relay Or EFI Main Relay (Vehicles With Nippondenso Relay)
G97G06482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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