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

1. Remove the relay.




2. Check that there is continuity between (4) and (6) terminals.

Standard value: 35 - 75 ohms




3. Use jumper leads to connect relay terminal No.6 to the battery (+) terminal and terminal No.4 to the battery (-) terminal.
Check the continuity between relay terminal No.2-8 while connecting and disconnecting the jumper lead at the battery (-) terminal.




4. If there is a defect, replace the MFI (ASD) relay or fuel pump relay.