Fuel Level Sensor B Circuit Intermittent
Fuel-level sensor B signal jumps or drops out intermittently — usually a corroded sender or wiring. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Affected components
- Fuel level sensor b
Common causes
- High likelihood: Corroded sender contact
- Low likelihood: Connector with intermittent contact under vibration
- Low likelihood: Harness routed against vibrating component
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.