Reductant Quality Sensor Circuit Low

Where it lives

For P206C, the sensor sits on the circuit this code reports. The description of P206C reports a fault at the sensor.

Check these first

• A short to ground on the reductant quality sensor signal wire
• A failed reductant quality sensor
• A low or contaminated DEF level at the sensor
• A corroded quality sensor connector

What to do next

1. Read the reductant quality sensor on a scan tool
2. Check the DEF level and condition
3. Test the quality sensor signal wire for a short to ground
4. Inspect the quality sensor connector for corrosion
5. Replace the reductant quality sensor if the circuit tests good
6. Clear the code and retest

Look up another code