OBD Guide

U061A

Lost Communication With Reductant Level Sensor B

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine light comes on
  • SCR error message on dashboard
  • The car goes into emergency mode
  • Reduced engine power
  • Increased fuel consumption

Causes

  • Open or short circuit in the sensor circuit
  • Reagent level sensor malfunction
  • Connector problems or contact corrosion
  • SCR ECU malfunction
  • Low AdBlue level

How to Fix

  1. Check AdBlue level
  2. Inspect the sensor wiring and connectors
  3. Check the power supply and ground of the sensor
  4. Test the reagent level sensor
  5. Check the SCR ECU for errors

Related codes

Error U061A by Vehicle Brand