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P0059 - OBD II Trouble Code

Our automotive experts have put together the following information about the P0059 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 P0059 code.

OBD II Fault Code

  • OBD II P0059

Fault Code Definition

  • HO2S Heater Resistance

What does this mean? The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the combustion process of the engine. The oxygen sensor must be at a certain temperature in order for this information to be accurate. The oxygen sensor has a heater wire inside to help bring the sensor up to temperature quicker. When the PCM detects the heater wire is not operating, it will set code P0059.

Symptoms

  • Decreased engine performance
  • Increased fuel consumption

Common Problems That Trigger the P0059 Code

  • Oxygen sensor failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue

Common Repairs Needed for the P0059 Code

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