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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What Are the Symptoms of P2012?
- Check Engine Light on
- Reduced power output
- Idle instability
- Hesitation during acceleration
- Minor increase in fuel consumption
What Causes P2012? (Most Likely First)
- 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
Can I Still Drive with P2012?
Short distances only. P2012 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
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.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P2012?
-
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
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Which Vehicles Commonly Get P2012?
- 2009-2015 Volkswagen Jetta 2.0L TDI
- 2012-2018 BMW 328d 2.0L Diesel
- 2010-2016 Mercedes-Benz ML350 3.0L BlueTEC
- 2014-2020 Ram 3500 6.7L Cummins
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