Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P206C - REDUCTANT Quality Sensor Low
2021 Ford Edge SE, 4WDSECTION DTC P206C - REDUCTANT Quality Sensor Low
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Ford Transit-350 HD, 2018 Ford Transit-350, 2018 Ford Transit-250, 2018 Ford Transit-150, and 2018 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
P206C - REDUCTANT QUALITY SENSOR LOW
| Description: | This DTC sets when the actual reductant quality module signal is less than the expected value for a calibrated amount of time. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check the reductant sample for urea concentration and contamination using the appropriate test equipment. Refer to ENGINE CONTROL COMPONENTS
, Selective Catalytic Reduction (SCR) Catalyst for additional information. The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle, while carrying out the appropriate drive cycle procedure, until the system warning message has cleared from the instrument cluster message center. Refer to DRIVE CYCLES for additional information. |
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| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RJ . | ||
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.