Fuel Temperature Sensor B Circuit Malfunction
The ECU detects an electrical fault in the fuel temperature sensor B circuit (second sensor used on systems with separate supply/return temperature monitoring or twin-tank arrangements).
Affected components
- Fuel temperature sensor b
- Sensor wiring
Common causes
- High likelihood: Sensor failed
- Medium likelihood: Wiring or connector fault
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
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.