Intake Manifold Runner Control Actuator Supply Voltage Low (Bank 1)
The supply voltage feeding the IMRC actuator on bank 1 is below the lower limit — typically a fuse, relay, or harness fault on the supply rail.
Affected components
- Imrc actuator
- Imrc supply relay
- Imrc supply fuse
Common causes
- High likelihood: Supply fuse blown
- Medium likelihood: Open supply wire
- Medium likelihood: Supply relay contacts pitted
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
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.