OBD Guide

U0661

Lost Communication With Right Rear Temperature Actuator A

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

Symptoms

  • Inability to adjust rear temperature
  • Uneven airflow in rear seats
  • Error indication on the instrument panel
  • Resetting climate control settings

Causes

  • Broken or damaged wiring to the drive
  • Temperature drive malfunction
  • Problems with the climate control unit
  • Corrosion of contacts in connectors
  • Circuit power problems

How to Fix

  1. Check the integrity of the wiring to the drive
  2. Diagnose the operation of the temperature drive
  3. Check contacts in connectors
  4. Scan the climate control control unit
  5. If necessary, replace the faulty drive

Related codes

Error U0661 by Vehicle Brand