OBD Guide

U061C

Lost Communication With Reductant Temperature Sensor A

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Possible reduction in engine power
  • Increased NOx emissions
  • SCR error message on instrument panel
  • Increased AdBlue urea consumption

Causes

  • Open or short circuit in the sensor circuit
  • Reagent temperature sensor malfunction
  • Connector problems or contact corrosion
  • SCR control module malfunction
  • Wiring harness damage

How to Fix

  1. Check the continuity of the temperature sensor circuit
  2. Inspect connectors and contacts for corrosion
  3. Check the functionality of the temperature sensor
  4. Scan the system for additional errors
  5. If necessary, replace the reagent temperature sensor

Related codes

Error U061C by Vehicle Brand