P2579 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P2579 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2579 code.

OBD II Fault Code

  • OBD II P2579

OBD-II Code Powertrain Control Module (PCM) failure is defined as a Turbocharger Speed Sensor Circuit Range/Performance

The Turbocharger is programmed to spin at a certain speed based on the engine's RPM. If the Turbocharger deviates too much from the anticipated speed of rotation, code P2579 will be set.

Powertrain Control Module (PCM) failure Symptoms

  • Lack of boost from the turbo/supercharger

Common Problems That Trigger the P2579 Code

  • Powertrain Control Module (PCM) failure
  • Turbocharger speed sensor failure
  • Wiring issue

About the Author

Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.

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