Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 1
What it means
P2016 means the intake manifold runner position sensor on bank 1 is reporting an abnormally low voltage. This sensor tells the PCM whether the intake runner flaps are open or closed. A low signal is usually a wiring short-to-ground or a failed sensor; the engine still starts and drives normally, but it will set a check-engine light and can fail emissions readiness.
Can I keep driving? Safe to keep driving — the engine starts and runs normally; the main downside is a check-engine light and a failed emissions monitor.
Real-world scan data
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check-engine light on
- Possible slight loss of low-rpm power or hesitation
- Usually no strong driving symptoms
Common causes
Most likely first
- Faulty intake manifold runner position sensor (bank 1)Likely
- Signal wire shorted to ground or open in the sensor circuitCommon
- Loose or corroded connector at the sensorCommon
- Faulty powertrain control module (PCM) — rareLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data to confirm the low-voltage fault on bank 1.
- Inspect the sensor connector and wiring for a short to ground, opens, or corrosion.
- Back-probe the sensor signal and reference voltage against spec.
- Replace the runner position sensor if its output stays low.
- Clear the code and re-test to confirm the repair.
FAQ
Quick answers
Is it safe to drive with P2016?+
Can I just clear P2016?+
Related codes
Read & clear P2016 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.