OBD Guide

U062B

Lost Communication With A/C Refrigerant Distribution Valve Actuator B

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • The air conditioner does not work or does not work correctly
  • Hot air from deflectors regardless of settings
  • Check Engine light comes on
  • Reduced performance of the climate control system

Causes

  • Open or short circuit in valve circuit
  • Refrigerant distribution solenoid valve B malfunction
  • Connector problems or contact corrosion
  • HVAC control unit malfunction
  • Software error in the control unit

How to Fix

  1. Check valve circuit fuse
  2. Inspect the wiring harness and connectors for damage.
  3. Check the resistance and operation of the solenoid valve
  4. Scan the HVAC control unit for additional errors
  5. If necessary, replace the faulty valve

Related codes

Error U062B by Vehicle Brand