Intake Manifold Tuning Valve Position Sensor Circuit Low
This code indicates a problem with the intake manifold tuning valve position sensor signal.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer is getting a reading from the tuning valve sensor that is lower than expected, suggesting the sensor or its circuit has an issue.
What the computer is actually seeing
The Engine Control Module (ECM) expects to see a voltage signal between 0.5V to 4.5V from the sensor when operating normally.
What a healthy reading looks like
Voltage should typically be between 0.5V (closed) and 4.5V (fully open). If voltage drops below 0.5V, this code is triggered.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect the wiring and connectors at the intake manifold tuning valve sensor for damage or corrosion. If damaged, repair or replace.
- 22. Check the voltage at the intake manifold tuning valve sensor connector with the key on, engine off. The reading should be between 0.5V and 4.5V. If below this range, suspect a faulty sensor or wiring issue.
- 33. With the engine running, perform a function test of the intake manifold tuning valve using a scan tool. Verify that the valve moves as commanded. If not, the valve might be stuck or the control circuit is faulty.
- 44. Clear the code and run the vehicle to see if the code returns. If it does, replace the intake manifold tuning valve position sensor.
Common causes
- Faulty intake manifold tuning valve position sensor
- Wiring issues or damaged connectors
- Faulty ECM
- Vacuum leaks affecting manifold pressure
- Stuck intake manifold tuning valve
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It’s drivable, but performance may be reduced. Address soon to avoid further issues.
Will this code come back?
If underlying issues are not resolved, yes, the code will likely return.
Why does this code sometimes pair with other codes?
Common wiring issues or shared components can cause multiple sensor-related codes.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →