Main Relay
- Ensure a clicking sound is heard at main relay when turning ignition on and off. See Fig 1 . Disconnect main relay. Apply 12 volts to terminal No. 5 and ground terminal No. 6.
- Ensure continuity between main relay terminals No. 1 to 2 and 3 to 4, when voltage is applied. There should be no continuity when voltage is not applied.