EFI Main Relay

Ensure ignition is off. Remove EFI main relay. See EFI MAIN RELAY LOCATION table.

NOTE: The EFI main relay may also be identified using appropriate illustration in the THEORY/OPERATION article or wire color. See wiring diagram in the WIRING DIAGRAMS article.

EFI MAIN RELAY LOCATION

Application	Location
Tercel	Fuse/Relay Box Near Driver's Side Front Corner Of Engine Compartment

Using ohmmeter, check continuity between specified terminals. See Fig 1.
Check EFI main relay operation by applying battery voltage and ground and checking continuity between specified terminals. See Fig 2. Replace EFI main relay if defective.

Fig 1: Testing EFI Main Relay (Checking Continuity)

Fig 2: Testing EFI Main Relay (Checking Operation)