Intake Manifold Runner Control Solenoid Circuit Low (Bank 1)
The IMRC solenoid drive line for bank 1 reads below the lower threshold — short to ground or a failed driver stage. The runner cannot be switched on demand.
Affected components
- Imrc solenoid
- Imrc wiring
Common causes
- High likelihood: Drive line shorted to ground
- Medium likelihood: Solenoid internally shorted
- Low likelihood: Connector pins corroded - high contact resistance
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.