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

EFI MAIN RELAY INSPECTION

LOCATION: In the engine compartment relay box:

1. REMOVE EFI MAIN RELAY.

2. 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.

3. 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 there is no continuity, replace the relay.

3. REINSTALL EFI MAIN RELAY.