Throttle Actuator Control System Ice Blockage Bank 2
The throttle actuator on bank 2 cannot move because of ice formation - typical for very cold ambient temperature with humid intake. Engine de-ices on warm-up.
Affected components
- Throttle actuator b2
Common causes
- High likelihood: Ice in throttle bore
Possible symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
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.