Error code

OBD2 P2016

OBD2P2016
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Intake Manifold Runner Position Sensor/Switch Circuit Low.

Severity

moderateCan drive but performance issues may occur.

Summary

P2016 indicates an issue with the intake manifold runner position sensor/switch circuit being too low on bank 1. This affects how air flows through the engine's intake system.

Symptoms

  • Illuminated or flashing warning light
  • Rough or fluctuating idle
  • Hesitation or surging at certain speeds
  • Power loss under some throttle settings

Common Causes

  • Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors
  • Defective position switch/sensor
  • Split, hardened, cracked, or dislodged vacuum lines (if applicable)
  • Carbon deposits on the control flaps preventing free movement

Diagnosis

  1. Record all fault codes and freeze frame data.
  2. Locate and identify all components, wiring, and vacuum lines (if applicable).
  3. Test the resistance of the position sensor/switch with a multimeter.
  4. Check live data streams or manually test the signal voltage as flaps are opened.

Fixes

  • Replace defective position switch/sensor if necessary.

FAQ

What should I do if P2016 appears with other codes?

Check and resolve any accompanying codes first, as they may affect the resolution of P2016.

How can I prevent misdiagnosis?

Refer to your vehicle's manual for specific details on the manifold air control system design before attempting diagnosis.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

More OBD2 codes

All OBD2 codes →Search more codes →