Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Fuel Pump Relay: Testing and Inspection

Circuit Opening Relay Circuit:




Circuit Diagram


Circuit Opening Relay Inspection:





Inspect Relay Continuity
- Using and ohmmeter, check that there is continuity between terminals STA and E1.
- Check that there is continuity between terminals +B and FC.
- Check that there is no continuity between terminals +B and FP.
- If continuity is not as specified. replace the relay.



Circuit Opening Relay Inspection:





Inspect Relay Operation
- Apply battery voltage across terminals STA and E1.
- Using an ohmmeter, check that there is continuity between terminals +B and FP.


Circuit Opening Relay Inspection:





- Apply battery voltage across terminals +B and FC.
- Check that there is continuity between terminals +B and FP.
- If operation is not as specified, replace the relay.