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P2015 — Intake Manifold Runner Position Sensorswitch Circuit Rangeperformance Bank 1

Manufacturer-specificPowertrain (engine & transmission)

The P2015 code indicates that the intake manifold runner position sensor/switch circuit for bank 1 is reporting a signal that is out of expected range or performance. The intake manifold runner control system adjusts the length of the intake runners to optimize engine performance at different RPMs. This code sets when the PCM detects that the actual runner position does not match the commanded position or the sensor signal is implausible.

Symptoms

What causes it — most likely first

1. Faulty intake manifold runner control (IMRC) actuator or solenoid

The actuator that moves the runner flaps may fail electrically or mechanically, preventing proper flap positioning.

2. Stuck or binding intake manifold runner flaps

Carbon buildup or mechanical wear can cause the flaps to stick, so the actual position does not match the commanded position.

3. Vacuum leaks in the IMRC system

Many IMRC actuators are vacuum-operated; a leak in the vacuum lines, diaphragm, or connections can cause improper flap movement.

4. Faulty intake manifold runner position sensor

The sensor itself may fail, sending an incorrect voltage signal to the PCM.

5. Wiring or connector issues

Damaged, corroded, or shorted wiring/connectors in the sensor or actuator circuit can cause erratic signals.

6. Carbon buildup on intake manifold runners

Excessive carbon deposits can physically restrict flap movement, leading to position errors.

How it's diagnosed

  1. Scan for additional codes and record freeze frame data to identify the conditions when the code was set.
  2. Visually inspect the IMRC actuator, linkage, vacuum lines, and electrical connectors for obvious damage or disconnection.
  3. Command the IMRC actuator with a scan tool (if supported) and observe flap movement and sensor response.
  4. Check the intake manifold runner position sensor signal using a scan tool or multimeter; compare to manufacturer specifications.
  5. Inspect intake manifold runners for carbon buildup and clean if necessary; manually move flaps to check for binding.
  6. Test wiring continuity and resistance between sensor/actuator and PCM; verify PCM signal output only after ruling out all other causes.

Code facts & related codes

SystemPowertrain (engine & transmission)
StandardizationManufacturer-specific (P1/B1/C1/U1)
Related codesP2010 — Intake Manifold Runner Control CircuitP2011 — Intake Manifold Runner Control CircuitP2012 — Intake Manifold Runner Control CircuitP2013 — Intake Manifold Runner Control CircuitP2014 — Intake Manifold Runner Position SensorP2016 — Intake Manifold Runner Position Sensor

Frequently asked

Can I drive with a P2015 code?

You can usually drive short distances, but you may experience reduced power, poor acceleration, and lower fuel economy. Prolonged driving with this issue could lead to further engine problems.

Is P2015 a serious code?

While not immediately dangerous, it indicates a problem that can affect engine performance and efficiency. It should be diagnosed and repaired to prevent potential damage.

What is the most common cause of P2015?

The most common cause is a failed intake manifold runner control actuator or solenoid, followed by stuck flaps due to carbon buildup.

Do I need to replace the PCM for a P2015 code?

No, PCM failure is extremely rare for this code. Many drivers are mistakenly told to replace the PCM, but the issue is almost always mechanical (actuator, flaps, vacuum leaks) or a sensor/wiring fault. Always diagnose the simpler, more likely causes first.