P0186 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P0186 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 P0186 code.

What Does P0186 Code Mean?

OBD-II Code P0186 is defined as a Fuel Temperature Sensor "B" Circuit Range/Performance

The Fuel Temperature Sensor tells the engine control module (PCM) the temperature of the fuel. When the PCM detects an implausible signal from the Fuel Temperature Sensor, the PCM will set code P0186.

Common Problems That Trigger the P0186 Code

  • Fuel temperature sensor failure
  • Powertrain Control Module (PCM) 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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