KF - Low Fan Control/High Fan Control

- Key "OFF".

- Low Fan Control (LFC) relay disconnected.

- Cooling fan disconnected.

- Measure resistance between GND circuit at the cooling fan vehicle harness connector and battery negative post.

- Is resistance less than 5.0 ohms?

Yes -- Replace cooling fan. Reconnect all components. Re-evaluate symptom.

No -- Service open circuit. Reconnect all components. Re-evaluate symptom.