Intake Manifold Runner Control Circuit Low (Bank 2)
The P2012 code means the vehicle's onboard diagnostic system has detected: Intake Manifold Runner Control Circuit Low (Bank 2). This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $100 - $400 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Reduced power output
- Idle instability
- Hesitation during acceleration
- Minor increase in fuel consumption
Probable Causes (Ranked by Likelihood)
- Short to ground in Bank 2 runner circuit wiring Very High
- Defective Bank 2 runner control solenoid High
- Moisture in solenoid connector Moderate
- Chafed wiring contacting body ground Moderate
- PCM internal fault Low
Step-by-Step Diagnostic Procedure
-
Confirm P2012 and review freeze frame data
-
Inspect Bank 2 runner control connector for moisture and corrosion
-
Check wiring harness for shorts to ground
-
Test solenoid coil resistance
Frequently Asked Questions
What does P2012 mean?
P2012 means the Bank 2 intake manifold runner control circuit has low voltage, typically due to a short to ground in the wiring or a failed solenoid coil.
Can I drive with a P2012 code?
Yes, you can drive short distances. The intake runner flaps on Bank 2 will not function properly, causing minor performance loss.
How much does it cost to fix P2012?
Repair costs are generally $100 to $400. Wiring repairs are less expensive than solenoid replacement.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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