Exhaust Valve Control Solenoid Circuit Bank 1
Generic electrical fault on the exhaust-valve control solenoid for bank 1. The exhaust control valve modulates exhaust backpressure or routing (EGR feed, sound, regen support); a malfunction shifts torque mapping and may trigger limp mode.
Affected components
- Exhaust valve solenoid
- Solenoid wiring
Common causes
- High likelihood: Solenoid coil failed
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
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.