Heated Catalyst Temperature Below Threshold (Bank 2)
The heated catalyst on bank 2 has not reached its calibrated light-off temperature within the expected time after engine start. Heater element weak or insufficient supply.
Affected components
- Catalyst heater
- Catalytic converter
Common causes
- High likelihood: Heater element ageing
Possible symptoms
- Check engine light on
- Failed emissions inspection
- Possibly slightly increased fuel consumption
- Sulfur (rotten egg) smell from exhaust under load
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.