U0662

Lost Communication With Right Rear Temperature Actuator B

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Incorrect operation of climate control in the rear right zone
Lack of response to temperature changes
Check Engine Light Illuminates
Uneven airflow in the cabin

Causes

Open or short circuit in the actuator circuit
Thermal actuator motor malfunction
Problems with the climate control unit
Oxidation of contacts in connectors
Mechanical jamming of the damper

How to Fix

Check the integrity of the wiring to the actuator
Check the resistance of the motor winding
Clean connector contacts
Check the mechanical movement of the damper
Scan the climate control unit for errors

Related codes

U0661 U0663 U0664