P0237 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P0237 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 P0237 code.

What Does P0237 Code Mean?

OBD-II Code P0237 is defined as a Turbocharger/Supercharger Boost Sensor "A" Circuit Low

The Boost Pressure Sensor tells the engine control module (PCM) how much boost is actually being created by the turbocharger. When PCM detects an incorrect signal from the Boost Pressure Sensor, the PCM will set code P0237.

P0237 Symptoms

  • Decreased engine performance
  • Increased fuel consumption
  • Lack of boost from the turbo/supercharger

Common Problems That Trigger the P0237 Code

  • Brake booster pressure sensor failure
  • Exhaust leak
  • Powertrain Control Module (PCM) failure
  • Turbo/supercharger 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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