XB161 - Check Power to Pump Circuit Continuity

- Key "OFF".

- High Speed Fuel Pump (HFP) relay disconnected.

- Measure resistance between the power-to-pump circuit at the HFP relay vehicle harness connector and the battery negative post.

- Is resistance less than 10.0 ohms?

Yes -- Go to XB162. XB162- Check VCRM and HFP Circuit Operation

No -- Service open in power-to-pump circuit between the HFP relay and splice to main power-to-pump circuit. Reconnect all components. Re-evaluate symptom.