P2209Tesla Model-xYears: 1996 - 2026
NOx Sensor Circuit (P2209) - Bank 1
Reviewed by ASE Certified Technician
What does this mean?
Code P2209 indicates a problem with the NOx (nitrogen oxide) sensor circuit on Bank 1. NOx sensors monitor nitrogen oxide levels in the exhaust for emissions control.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Tesla Model-x models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
Advertisement (In-Article)
Common Causes
Faulty NOx sensor
Damaged, chafed, or broken wiring harness
Corroded or loose electrical connector
PCM/ECM software needs update (TSB)
Symptoms to Watch For
- Check Engine Light is illuminated
- Failed emissions test
- Decreased fuel economy
- Vehicle enters reduced power / limp mode