OBD Guide

U065F

Lost Communication With Left Rear Temperature Actuator A

U065F is an OBD-II diagnostic trouble code meaning: Lost Communication With Left Rear Temperature Actuator A. Common causes: open or short circuit in the drive circuit, drive solenoid valve malfunction. Estimated repair cost: $28–89.

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

Symptoms

  • Inability to adjust the temperature in the left rear part of the cabin
  • Uneven heating/cooling of the interior
  • Error indication on the climate control display
  • Automatic climate control mode does not work correctly

Causes

  • Open or short circuit in the drive circuit
  • Drive solenoid valve malfunction
  • Problems with the wiring harness to the drive
  • Failure of the temperature drive itself
  • Malfunctions of the climate control module

How to Fix

  1. Check the integrity of the power supply and drive control circuits
  2. Inspect the wiring harness for damage
  3. Check the functionality of the temperature drive
  4. Replace faulty drive if necessary
  5. Scan the climate control module for other errors

Related codes

Error U065F by Vehicle Brand

FAQ

What does the U065F code mean?

U065F is an OBD-II diagnostic trouble code that indicates: Lost Communication With Left Rear Temperature Actuator A

What causes a U065F error code?

The most common causes of U065F include: Open or short circuit in the drive circuit; Drive solenoid valve malfunction; Problems with the wiring harness to the drive; Failure of the temperature drive itself.

How do I fix a U065F diagnostic trouble code?

To fix U065F: Check the integrity of the power supply and drive control circuits. Inspect the wiring harness for damage. Check the functionality of the temperature drive. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U065F?

Yes, but get it checked soon

How much does it cost to fix U065F?

The estimated repair cost for U065F is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat