OBD Guide

P206C

Reductant Quality Sensor Circuit Low

P206C is an OBD-II diagnostic trouble code meaning: Reductant Quality Sensor Circuit Low. Common causes: open or short circuit in the sensor circuit, poor contact in connectors. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • SCR System Error Message
  • Unpleasant exhaust smell

Causes

  • Open or short circuit in the sensor circuit
  • Poor contact in connectors
  • Reagent quality sensor malfunction
  • Problems with the SCR control unit
  • Sensor contamination

How to Fix

  1. Check the integrity of wiring and connectors
  2. Clean sensor contacts
  3. Check sensor parameters with a multimeter
  4. Replace the reagent quality sensor if necessary
  5. Scan the system for additional errors

Related codes

Error P206C by Vehicle Brand

FAQ

What does the P206C code mean?

P206C is an OBD-II diagnostic trouble code that indicates: Reductant Quality Sensor Circuit Low

What causes a P206C error code?

The most common causes of P206C include: Open or short circuit in the sensor circuit; Poor contact in connectors; Reagent quality sensor malfunction; Problems with the SCR control unit.

How do I fix a P206C diagnostic trouble code?

To fix P206C: Check the integrity of wiring and connectors. Clean sensor contacts. Check sensor parameters with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P206C?

Limited driving only, diagnose soon

How much does it cost to fix P206C?

The estimated repair cost for P206C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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