P2016Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank 1)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2016 says the bank 1 flap position signal sits at the bottom of its range, typically a shorted signal wire or a lost 5 V supply. Ford sets it below 0.24 V after 5 s; the 2014 Touareg 3.0 TDI (CNRB) below 0.15 V. GM's 2018 diesels read a smart swirl actuator whose feedback is a pulse train: a period frozen at 30 ms with 0 % duty in 50 of 62 samples, at least 5 s after the actuator woke and above 11 V, gives a Type B fault. On GM's 2025 SENT sensor a raw value under 1 % in 480 of 600 samples does the same. Chrysler's short runner valve feedback uses it too: a PCM reflash for 2013–2015 Ram 1500 V6/V8 trucks addresses P2016, and a 2023 Ram case traced P2008, P2016 and P2017 together to a spread supply terminal in the valve plug.
- What you may notice
- Check engine lamp on
- Less torque at low revs or flat spot when the runner should switch
- Likely causes
- LikelySignal wire chafed and grounded
- Possible5 V or actuator supply missing (spread terminal, blown fuse)
- PossiblePosition sensor or smart actuator electronics faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.