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18447/P2015/008213 - Intake Manifold Flap Position Sensor (Bank 1): Implausible Signal

Possible Symptoms

  • Malfunction Indicator Light (MIL) ON
  • Power Loss

Possible Causes

  • Intake Manifold Flap faulty
  • Intake Manifold Flap Motor (V157) stuck/faulty
  • Engine Control Module Software/Firmware Version faulty
  • Wiring and/or Connector(s) from/to Intake Manifold Flap Motor (V157) faulty

Possible Solutions

  • Check Intake Manifold Flap
  • Check/Replace Intake Manifold Flap Motor (V157)
    • Perform Output Tests/Basic Setting
  • Check Wiring and/or Connector(s) from/to Intake Manifold Flap Motor (V157)

Special Notes

  • Check TSB 24-17-04 or 2045138 NAR) North American Region vehicles only.
  • In some Cases the Issue can only be resolved by Replacing the whole Intake Manifold.
  • The Intake Manifold Flap Motor (V157) and Manifold Runner Position Sensor (G336) may be Part of the same Unit.
  • When found in a VW Golf/Jetta (1K): 1.9l PD-TDI (BRM), check Engine Control Module (ECM) Software Version:
    • 03G-906-016-AB @ 7328 or 7550 as well as 03G-906-016-AC @ 7280 or 7551 do have a Software Error which requires a special Adaptation for the Intake Manifold Flap Motor (V157) which at this Point can only be performed with the Factory Tool.
  • This page describes a Basic Settings for some 2.0T gasoline engines: 2.0l_TFSI_(AXX/BGB/BPJ/BPY/BWA)#Intake_Manifold_Runner
  • When found in North America Audi vehicles check Technical Service Bulletin number: 2044003