Fuel Pump Relay: Testing and Inspection

1. REMOVE CIRCUIT OPENING RELAY (Marking: CIR OPN)

2. INSPECT CIRCUIT OPENING RELAY CONTINUITY




a. Using an ohmmeter, check that there is continuity between terminals 1 and 2.If there is no continuity, replace the relay.
b. Check that there is no continuity between terminals 3 and 5.If there is continuity, replace the relay.

3. INSPECT CIRCUIT OPENING RELAY OPERATION
a. Apply battery voltage across terminals 1 and 2.




b. Using an ohmmeter, check that there is continuity between terminals 3 and 5.
If there is no continuity, replace the relay.

4. REINSTALL CIRCUIT OPENING RELAY