OBD-II Generic Error Code P2012: How to Fix It

Q: Is it safe to drive with code P2012?

You may notice reduced power or fuel economy, but it is generally safe for short trips. However, continued driving can cause further issues, so repair as soon as possible.

Q: What parts are needed to fix P2012?

Commonly replaced parts include the intake manifold runner control actuator, wiring harness, or the intake manifold gasket if removed.

Q: Can a vacuum leak cause P2012?

Yes, a vacuum leak in the intake runner control system can cause incorrect voltage readings and trigger the code.

Q: How much does professional repair cost for P2012?

Labor and parts can range from $200 to $600 depending on the vehicle and whether the intake manifold needs removal.

Q: Will a tune-up fix P2012?

Not typically. This code is specifically for the electrical circuit of the intake runner control, not general engine performance. Tune-ups may not address the root cause.

Abstract

Error code P2012 indicates that the Engine Control Module (ECM) has detected a low voltage condition in the intake manifold runner control circuit for bank 2. This means the system that adjusts air flow into the engine's intake runners on the side of bank 2 is not working properly. Common causes include a faulty intake manifold runner control actuator, wiring issues, or a bad ECM.