Alternative Fuel Tank B Level Sensor Range/Performance
The level signal of alternative fuel tank B does not match plausibility checks against consumption and refuel events. Float stuck or capacitive sensor drift.
Affected components
- Alt fuel tank b level sensor
- Wiring harness
- Afcm
Common causes
- High likelihood: Float stuck on guide rod
- Medium likelihood: Sensor characteristic drifted
- Low likelihood: Sensor element aged beyond calibration window
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.