Error code

OBD2 P2006

OBD2P2006
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Intake Manifold Runner Control Stuck Closed.

Severity

moderateCan drive, but performance issues may occur.

Summary

P2006 indicates that the intake manifold runner control actuator is stuck in the closed position on bank 1 of the engine.

Symptoms

  • Stored trouble code(s) and an illuminated or sometimes flashing warning light
  • Rough or fluctuating idle
  • Engine may not idle at all
  • Hesitation or surging at some engine speeds
  • Power loss at certain engine speeds and throttle settings

Common Causes

  • Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors
  • Split, hardened, cracked, or dislodged vacuum lines
  • Defective position switch/sensor
  • Defective vacuum actuator or other vacuum operated component(s)
  • 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, associated wiring, vacuum lines, and related parts as per the manual.
  3. Test the actuator position switch/sensor resistance with a digital multimeter.
  4. Check live data streams if available to monitor sensor operation.

Fixes

  • Replace defective position switch/sensor or vacuum actuator

FAQ

What should I do first when diagnosing P2006?

Start by checking the wiring, connectors, and vacuum lines for any damage or issues.

Can carbon deposits cause this issue?

Yes, carbon deposits on control flaps can prevent free movement, leading to P2006.

View source

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

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