Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank 2)
The IMRC position sensor on bank 2 reports a voltage below the lower threshold — typically a short to ground or a sensor with very low resistance.
Affected components
- Imrc position sensor b2
- Imrc wiring
Common causes
- High likelihood: Signal shorted to ground
- Medium likelihood: Sensor element 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.