Fuel Temperature Sensor A/B Correlation
The signals of the fuel temperature sensors A and B do not correlate within the calibrated tolerance. One sensor drifts or installation offset between channels.
Affected components
- Fuel temperature sensor a
- Fuel temperature sensor b
- Ecm
Common causes
- High likelihood: One sensor characteristic drifted
- Medium likelihood: Harness incorrectly swapped between channels
Diagnostic notes
- The malfunction indicator lamp may illuminate
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.