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2014 LINCOLN MKX

3.5L V6AWDAUTOMATICgas
1 active safety recall on this vehicle — view recalls
Repairs0Labor515Torque3889Fluid9DTC952Battery0Maintenance0Recalls1
P2200high severityPowertrain

NOx Sensor Circuit Bank 1

on 2014 Lincoln MKX 3.5L V6 · AWD

What this code means

Malfunction in the NOx sensor circuit on bank 1. Sensor may not be providing accurate readings.

Symptoms

  • Check engine light
  • Failed emissions
  • SCR system may deactivate

Common causes

  • Failed NOx sensor
  • Wiring damage
  • Connector corrosion
  • ECM fault

Diagnostic steps

  1. Check NOx sensor connector
  2. Measure heater circuit
  3. Monitor sensor output with scan tool

Repair notes

Replace NOx sensor bank 1. Verify wiring integrity first.

Other Powertrain codes on this vehicle

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