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

EFI MAIN RELAY INSPECTION
1. REMOVE CRUISE CONTROL ACTUATOR





2. Remove efi main relay.
3. Inspect efi main relay.
A. Inspect relay continuity.





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





- 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 cruise control actuator.