EFI Main Relay: Inspection

REMOVE EFI MAIN RELAY (Marking: EFI)

Fig 1: Locating EFI Main Relay
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT EFI MAIN RELAY
1. Inspect the relay continuity.
  1. Using an ohmmeter, check that there is continuity between terminals 1 and 2.
    If there is no continuity, replace the relay.
  2. Check that there is no continuity between terminals 3 and 5.
  Fig 2: Inspecting EFI Main Relay Continuity
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If there is continuity, replace the relay.
2. Inspect the relay operation.
  1. Apply battery positive voltage across terminals 1 and 2.
  2. Using an ohmmeter, check that there is continuity between terminals 3 and 5.
  Fig 3: Inspecting EFI Main Relay Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If there is no continuity, replace the relay.
REINSTALL EFI MAIN RELAY