Main Relay (Computer/Fuel System): Testing and Inspection

EFI MAIN RELAY (Marking: EFI) INSPECTION





1. Remove EFI main relay

LOCATION: In the engine compartment relay box.

2. Inspect EFI main relay.





A. Inspect relay continuity
(a) Using an ohmmeter, check that there is continuity between terminals 86 and 85.
If there is no continuity. replace the relay.
(b) Check that there is no continuity between terminals 87 and 30.
If there is continuity. replace the relay.





B. Inspect relay operation
(a) Apply battery voltage across terminals 86 and 85.
(b) Using an ohmmeter, check that there is continuity between terminals 87 and 30.
If there is no continuity, replace the relay.
3. Reinstall EFI main relay