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

EFI MAIN RELAY 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 1 and 3.
- Check that there is no continuity between terminals 2 and 4.
- If continuity is not as specified, replace the relay.
B. Inspect relay operation
- Apply battery voltage across terminals 1 and 3.





- Using an ohmmeter, check that there is continuity between terminals 2 and 4.
- If operation is not as specified, replace the relay.
3. REINSTALL EFI MAIN RELAY