Exhaust Gas Temperature Sensor Bank 1 Sensor 1 High
The exhaust gas temperature sensor signal at bank 1, sensor 1 is above the upper diagnostic threshold. Typically open circuit or short to power.
Affected components
- Exhaust gas temp sensor
- Sensor wiring
Common causes
- High likelihood: Sensor open internally
- Medium likelihood: Wiring open or disconnected
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.