P122C - Nitrogen Oxide Sensor Electric Short Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

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

Possible symptoms

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

P122c Description

The Engine Control Module (ECM) monitors the Nitrogen Oxide Sensor. The ECM sets the OBDII code when the Nitrogen Oxide Sensor is not to factory specifications.
OBDII Code P122c - Nitrogen Oxide Sensor Electric Short Circuit - AutoCodes.com

P122C Information for specific makes

  • P122C BMW Nitrogen Oxide Sensor Electric Short Circuit
  • P122C MINI Nitrogen Oxide Sensor Electric Short Circuit

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P122C Comments

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