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

1. REMOVE RELAY BOX COVER

2. REMOVE EFI MAIN RELAY (Marking: EFI)

3. INSPECT EFI MAIN RELAY
a. Inspect the relay continuity.





1. Using an ohmmeter, check that there is continuity between terminals 1 and 3.
If there is no continuity, replace the relay.
2. Check that there is no continuity between terminals 2 and 4.
If there is continuity, replace the relay.
b. Inspect the relay operation.
1. Apply battery positive voltage across terminals 1 and 3.





2. Using an ohmmeter, check that there is continuity between terminals 2 and 4.
If there is no continuity, replace the relay.

4. REINSTALL EFI MAIN RELAY
5. REINSTALL RELAY BOX COVER