P206B Possible Causes
- Faulty Reductant Quality Sensor
- Reductant Quality Sensor Harness is open or shorted
- Reductant Quality Sensor Circuit poor electrical connection
What Does It Mean?
How to Fix Code P206B
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 pins.
P206B Possible Symptoms
Engine Light On (or Service Engine Soon Warning Light)
P206B Meaning
Reductant Quality Sensor Circuit Range/Performance is the generic description for the P206B code, but the manufacturer may have a different description.