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

MAIN RELAY
Inspection
1. Check that a "clicking" sound is heard at the main relay when turning the ignition switch OFF and ON.






2. Apply Battery voltage and a ground to terminals A and B of the main relay.
3. Check continuity of the relay between terminals C and D.
4. Replace the main relay if not as specified.






B+: Battery positive voltage