Engine-Codes - Generic - P125A

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

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P125A Possible Causes

  • Faulty Nitrogen Oxide (NOx) Sensor
  • Nitrogen Oxide (NOx) Sensor harness is open or shorted
  • Nitrogen Oxide (NOx) Sensor circuit poor electrical connection

How is the P125A code repair?

Start by checking 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's pins.

What is the cost to diagnose the P125A code

Labor: 1.0

The cost to diagnose the P125A code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

P125A Meaning

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.

More Information

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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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