P121C MINI - Nitrogen Oxide Sensor Heating Activation Short Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

P121C MINI Possible Causes

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

First diagnose P121C MINI code

    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 MINI code

    Labor: 1.0

    The cost of diagnosing the P121C MINI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

P121C MINI Possible Symptoms

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

P121c Mini Description

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 Mini - Nitrogen Oxide Sensor Heating Activation Short Circuit - AutoCodes.com

P121C MINI More Information

Need more information on how to fix the P121C MINI code?
Get Access to Factory Service Manuals

Need more help?

Get the P121c Mini code diagnosed by a professional: Find a repair shop in your area

Related Information

P121C MINI Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P121c Mini code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧