Fuel Pump Relay: Testing and Inspection

Circuit Opening Relay Inspection:

Checking Relay Continuity
- Remove relay.
- Check for continuity between terminal STA and E1.

Desired - Continuity

- Check for continuity between terminal +B and FC.

Desired - Continuity

- Check for continuity between terminal +B and FP.

Desired - No continuity

- Replace relay if desired results are not achieved.

Circuit Opening Relay Inspection:

Checking Relay Operation
- Apply battery voltage across relay terminals STA and E1.
- Check for continuity between terminal +B and FP.

Desired - Continuity

Circuit Opening Relay Inspection:

- Apply battery voltage across relay terminals +B and FC.
- Check for continuity between terminal +B and FP.

Desired - Continuity

- Replace relay if desired results are not achieved.