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

1. Remove the relay.
2. Check the continuity between the MFI relay terminals.




3. Use the jumper leads to connect relay terminal 4 to the battery (+) terminal and terminal 2 to the battery (-) terminal.




4. Check the continuity between relay terminals 1-3 while connecting and disconnecting the jumper lead at the battery (-) terminal.




5. If there is a defect, replace the MFI relay.