OBD Guide

U0659

Lost Communication With Left Front Temperature Actuator

U0659 is an OBD-II diagnostic trouble code meaning: Lost Communication With Left Front Temperature Actuator. 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 temperature in left front zone
  • Uneven airflow in the cabin
  • Error indication on the climate control display
  • Automatic temperature reset
  • Noise or clicking noise from the drive area

Causes

  • Open or short circuit in the drive circuit
  • Drive solenoid valve malfunction
  • Poor contact in connectors
  • Problems with the climate control unit
  • Mechanical jamming of the drive

How to Fix

  1. Check the fuses of the relevant circuits
  2. Inspect the wiring harness and connectors for damage.
  3. Check resistance and power supply to the drive
  4. Replace faulty temperature drive
  5. Test work after repair

Related codes

Error U0659 by Vehicle Brand

FAQ

What does the U0659 code mean?

U0659 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Left Front Temperature Actuator

What causes a U0659 error code?

The most common causes of U0659 include: Open or short circuit in the drive circuit; Drive solenoid valve malfunction; Poor contact in connectors; Problems with the climate control unit.

How do I fix a U0659 diagnostic trouble code?

To fix U0659: Check the fuses of the relevant circuits. Inspect the wiring harness and connectors for damage.. Check resistance and power supply to the drive. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U0659?

Yes, but get it checked soon

How much does it cost to fix U0659?

The estimated repair cost for U0659 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat