Intake Manifold Runner Control Circuit/Open (Bank 2)
The IMRC actuator drive circuit on bank 2 is open or has lost continuity — control module no longer detects a closing path through the actuator winding.
Affected components
- Imrc actuator
- Intake manifold runner harness
Common causes
- High likelihood: Open wiring or chafed conductor in IMRC harness
- Medium likelihood: Connector corroded — high resistance contact
- Medium likelihood: Actuator solenoid winding open
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.