Fuel Pump Relay: Testing and Inspection

CIRCUIT OPENING (FUEL PUMP) RELAY INSPECTION

1. Remove circuit opening relay.





2. Inspect circuit opening relay continuity.
(a) Using an ohmmeter, check that there is continuity between terminals 1 and 2.
If there no continuity, replace the relay.
(b) Check that there is no continuity between terminals 3 and 4.
If there continuity, replace the relay.





3. Inspect circuit opening relay operation.
(a) Apply battery positive voltage across terminals 1 and 2.
(b) Using an ohmmeter, check that there is continuity between terminals 3 and 4.
If operation is not as specified, replace the relay.
4. Reinstall circuit opening relay.