Engine-Codes - Generic - P125A

P125A Code - Nitrogen Oxide Sensor Heating Heat Output Too Low During Starting

- Code Popularity: 5,282 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P125A?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Nitrogen Oxide (NOx) Sensor
  • Nitrogen Oxide (NOx) Sensor harness is open or shorted
  • Nitrogen Oxide (NOx) Sensor circuit poor electrical connection
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How to Fix the DTC P125A?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P125A code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P125A Code Mean?

The Engine Control Module (ECM) monitors the Nitrogen Oxide (NOx) Sensor. The ECM sets the OBDII code when the Nitrogen Oxide (NOx) Sensor is not to factory specifications.

P125A Code - Nitrogen Oxide Sensor Heating Heat Output Too Low During Starting

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Code P125A Information for Specific Makes

  • P125A BMW Nitrogen Oxide Sensor Heating Heat Output Too Low During Starting
  • P125A MINI Nitrogen Oxide Sensor Heating Heat Output Too Low During Starting

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