OBD-II trouble code
P2011: Intake Manifold Runner Control Circuit / Open (Bank 2)
The module has found no electrical load on the Bank 2 runner control output. Because Bank 1 has its own driver in the same module, a fault confined to one bank tells you a great deal in a single glance.
Quick facts
- System
- Powertrain
- Category
- Air Intake / Manifold Control
- Severity
- Medium severity
- Drivable
- Usually safe to drive short-term
- Repair cost range
- $100 – $750
- DIY difficulty
- Intermediate DIY
What does P2011 mean?
Every Bank 2 code carries an implicit statement about the engine — two cylinder banks, so a V or flat layout — but the electrical Bank 2 codes carry a second statement that the mechanical ones do not, and it is the useful one. Two banks of runner control means two output drivers, physically separate circuits on the same board inside the same module, fed by the same supply and referenced to the same ground.
That architecture turns a single observation into a large elimination. If P2011 is stored and the Bank 1 output is behaving normally, the module has power, the module has ground, the module is running its output logic, and its supply circuits are intact — because the healthy driver next door proves all of it. There is no need to test any of that. What remains is what the Bank 2 circuit does not share: its own driver output, its own branch of harness, its own connector and its own actuator.
It is worth contrasting this with how the mechanical Bank 2 code behaves, because the two lead you in opposite directions. A stuck-closed or stuck-open condition on one bank is suspicious precisely because its usual cause — oil and soot deposit — accumulates engine-wide and should have affected both banks equally. Electrical faults have no such expectation. Wiring damage is local by nature: a wire chafes where it touches something, a connector corrodes where water reaches it, a terminal spreads where it was disturbed. A one-bank electrical fault is entirely ordinary and needs no special explanation.
There is also a physical asymmetry that makes the Bank 2 branch the more likely one to fail, and it is worth knowing before you start. The control module lives on one side of the engine bay, so one bank's wiring is a short run and the other's crosses the engine. The longer branch passes more heat shields, takes more of the relative movement between a rocking engine and a fixed body, and usually contains at least one extra connector or splice where the loom divides. On a transversely mounted V6 the Bank 2 actuator is frequently the one at the back, against the firewall, reached from underneath or after removing the upper intake — which is also why the same repair costs meaningfully more on this bank than on the other.
An open on this circuit is exactly what the words say: infinite resistance where a winding should be. The module cannot push current, so the flaps stay in their sprung default position on that bank while the other bank continues to work normally. That produces the odd situation of an engine running with mismatched intake geometry between its two halves, which some engines tolerate quietly and others answer with fuel trim or misfire codes on the affected bank alone.
Common causes
- Actuator or solenoid connector unplugged, corroded, or with a backed-out terminal on the Bank 2 side
- Open winding inside the Bank 2 runner control actuator or solenoid
- Broken conductor in the longer harness branch that crosses the engine to Bank 2
- Chafed or melted wire where the Bank 2 branch passes a heat shield or exhaust component
- Failed splice or connector at the point where the loom divides between banks
- Failed Bank 2 output driver inside the control module
- Harness damage from previous work at the rear of a transversely mounted engine
Symptoms
- Check engine light on
- Often stored with a Bank 2 stuck-open code such as P2005
- Reduced low-speed torque, sometimes with a faint unevenness as the two banks breathe differently
- Bank-specific fuel trim or misfire codes on some engines
- Idle quality slightly rougher than normal on sensitive engines
- Frequently no symptom the driver can identify
Diagnostic steps
- 1.Confirm which physical side of the engine is Bank 2 by the engine's own cylinder numbering rather than by assumption. It is simply the bank without cylinder 1, and there is no universal convention for where that sits.
- 2.Check whether any Bank 1 electrical code is stored. Bank 2 faulted alone confirms the module's power, ground and logic are healthy and narrows the search to the Bank 2 circuit only.
- 3.Inspect the Bank 2 actuator connector before anything else. Unlatch it, look for green corrosion, spread terminals and a pin that has pushed back into the body, and check that the lock is still intact rather than heat-brittled.
- 4.Measure resistance across the actuator or solenoid winding at the component. An open reading confirms the component; a normal reading moves the fault into the harness.
- 5.Check continuity of each control wire end to end between the module connector and the actuator connector, flexing the loom as you go where it crosses the engine.
- 6.Follow the Bank 2 branch specifically along heat shields and exhaust runs, looking for melted, hardened or chafed insulation. The longer branch takes more heat and more movement than its twin.
- 7.If the harness and component both test good, back-probe the module output and confirm it is switching. A dead driver with everything else intact is uncommon but does happen.
- 8.Repair, clear all codes including any Bank 2 stuck code stored alongside, then complete a drive cycle before assessing whether a mechanical fault exists.
Repair cost
$100 – $750
A corroded connector or a repaired wire is $100 to $320, with the higher figure reflecting the access on a rear-facing bank. A control solenoid runs $120 to $300 installed. An electric actuator on the buried bank of a transverse V engine is typically $300 to $750 because upper intake removal is often required to reach it. Module replacement with programming sits above this range and is rare.
Estimate your repair
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Open the Repair Cost Estimator with wiring harness / circuit repair preselected. Adjust labor rate and vehicle category to fit your situation.
DIY vs shop
This is an intermediate DIY job. It usually involves diagnostic steps, specialty parts, and some careful work in tight spaces. If you have the tools and a service manual or trustworthy video for your specific vehicle, it is achievable in a weekend. Otherwise, a competent independent shop will be faster.