Fuel Pump Relay: Testing and Inspection

COMPONENTS

INSPECTION
1. REMOVE LOWER FINISH NO.1 PANEL
2. REMOVE CIRCUIT OPENING RELAY
3. INSPECT CIRCUIT OPENING RELAY CONTINUITY




a. Using and ohmmeter, check that there is continuity between terminals STA and E1.
If there is no continuity, replace the relay.
b. Check that there is continuity between terminals +B and FC.
If there is no continuity, replace the relay.
c. Check that there is no continuity between terminals +B and FP.
If there is continuity, replace the relay.




4. INSPECT CIRCUIT OPENING RELAY OPERATION
a. Apply battery positive voltage across terminals STA and E1.




b. Using an ohmmeter, check that there is continuity between terminals +B and FP.
c. Apply battery positive voltage across terminals +B and FC.
d. Check that there is continuity between terminals +B and FP.
If operation is not as specified, replace the relay.

5. REINSTALL CIRCUIT OPENING RELAY
6. REINSTALL LOWER FINISH NO.1 PANEL