Fuel Gauge Sending Unit
- Inspect fuel pump module, float and float rod for damage. If fuel pump module, float and float rod are okay, go to next step. If fuel pump module, float and float rod are damaged, replace fuel pump module and retest system.
- Connect ohmmeter between ground and fuel pump module signal lead (Yellow/White wire). Slowly move float rod from full stop to empty stop. If ohmmeter reading slowly decreases, check fuel gauge circuit or replace fuel gauge and retest system. If ohmmeter reading does not decrease, replace fuel pump module and retest system.