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

1. REMOVE EFI MAIN RELAY.

LOCATION: In the engine compartment relay box.





2. INSPECT EFI MAIN RELAY.
A. Inspect relay continuity.
- Using an ohmmeter, check that there is continuity between terminals 86 and 85.
- If there is no continuity, replace the relay.
- Check that there is no continuity between terminals 87 and 30.
- If there is continuity, replace the relay.





B. Inspect relay operation.
- Apply battery positive voltage across terminals 86 and 85.
- Using an ohmmeter, check that there is continuity between terminals 87 and 30.
- If operation is not as specified, replace the relay.
3. REINSTALL EFI MAIN RELAY.