P121C BMW - Nitrogen Oxide Sensor Heating Activation Short Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

P121C BMW 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 do I fix code P121C BMW

    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's pins.

Cost of diagnosing the P121C BMW code

    Labor: 1.0

    The cost of diagnosing the P121C BMW 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.

P121C BMW Possible Symptoms

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

P121C BMW Meaning

The Engine Control Module (ECM) monitors the Nitrogen Oxide (NOx) Sensor. The ECM sets the OBDII code when the Nitrogen Oxide Sensor is not to factory specifications.
OBDII Code P121C BMW - Nitrogen Oxide Sensor Heating Activation Short Circuit - Engine-Codes.com

P121C BMW More Information

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