P2013 Code: Intake Manifold Circuit High (Bank 2)

Check Engine Light on? If you scan your car and see P2013, your engine computer is detecting an abnormal voltage spike on the intake manifold control circuit. Specifically, this is happening on Bank 2 (the side opposite Cylinder #1). It usually means a short to power or a failing solenoid.

What Does P2013 Mean?

P2013 stands for "Intake Manifold Runner Control (IMRC) Circuit High Bank 2."

The ECU controls the intake flaps by grounding the circuit (pulling voltage down). If the ECU tries to activate the solenoid but the voltage stays high (stuck at 12V or 5V), it triggers P2013. This implies that power is "leaking" into the signal wire where it shouldn't be.

⚡ Bank 2 Electrical Faults: The Complete List

P2013 is just one of three possibilities for Bank 2. Compare your code carefully:

P2011 (Open): The wire is broken/disconnected. Read P2011 Guide.
P2012 (Low): The wire is shorted to ground (0V). Read P2012 Guide.
P2013 (High): The wire is shorted to power (12V).

If you have this problem on Bank 1 instead, you would see Code P2010.

Why Is the Voltage "High"?

A "Circuit High" code is often more dangerous to your computer than a "Circuit Open" code. Common causes include:

Short to Power: The most common culprit. The wiring harness for the Bank 2 solenoid might be chafed. If the signal wire touches a 12V power feed wire, the voltage will spike and stay high, overriding the ECU's control.
Solenoid Coil Failure: The electromagnetic coil inside the solenoid can fail in a way that alters its resistance, causing the ECU to read the return voltage as abnormally high.
ECU Driver Fault: In rare cases, if the short has existed for a long time, it may have damaged the transistor inside the engine computer that controls this circuit.

Diagnosing P2013 with iCarsoft CR Ultra P

You need to determine if the high voltage is coming from a bad part or a bad wire. Use the iCarsoft CR Ultra P to test it safely.

The Isolation Test (Unplug It)

Step 1: Connect the scanner and open Live Data for "IMRC Monitor Bank 2". Note the high voltage or "High" status.
Step 2: Turn off the engine. Unplug the Bank 2 Solenoid connector.
Step 3: Turn the key back ON and scan again.
- If the code turns into P2011 (Open): This is the best outcome! It means your wiring is healthy (because the computer correctly saw you unplug it). The "High" signal was caused by the solenoid itself. Replace the Bank 2 Solenoid.
- If the code stays P2013 (High): This is trouble. Even with the part unplugged, the computer still sees high voltage. This means the wire is shorted to a power source somewhere in the harness. You need to find and repair the damaged wire.

For more on how solenoids work, check out this technical guide on electromagnets.

Protect Your Engine Computer

A short to power can fry your ECU if left unchecked. Use the iCarsoft CR Ultra P to identify the fault quickly before it becomes an expensive computer repair.

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Frequently Asked Questions

Is P2013 safe to drive with?

You can drive short distances, but be careful. Since the intake flaps won't function, you will lose power at high speeds. More importantly, if the cause is a wiring short, it could potentially damage other electrical systems.

Where is the Bank 2 Solenoid?

Bank 2 is the side of the engine opposite Cylinder #1. On most transverse V6 engines (Nissan, Toyota, Ford), Bank 2 is the "Front" bank, making the solenoid easier to reach than the rear one.

Do I need to reset the ECU after fixing P2013?

Yes. After replacing the solenoid or fixing the wire, use the CR Ultra P to clear the codes. It is also recommended to run a "Drive Cycle" to ensure the permanent code is erased from the computer's memory.

Fix the voltage spike with professional tools.

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