Alternative Fuel Tank C Pressure Sensor Range/Performance
The pressure signal of alternative fuel tank C does not match plausibility checks against tank temperature and fill level. Sensor drift.
Affected components
- Alt fuel tank c pressure sensor
- Wiring harness
- Afcm
Common causes
- High likelihood: Sensor zero drifted
- Medium likelihood: Sensor mounting loose - bias offset
- Low likelihood: Sensor element aged beyond calibration window
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- Reduced-power or limp mode may occur
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.