U0662
Lost Communication With Right Rear Temperature Actuator B
U0662 is an OBD-II diagnostic trouble code meaning: Lost Communication With Right Rear Temperature Actuator B. Common causes: open or short circuit in the actuator circuit, thermal actuator motor malfunction. Estimated repair cost: $17–89.
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
Error U0662 by Vehicle Brand
FAQ
What does the U0662 code mean?
U0662 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Right Rear Temperature Actuator B
What causes a U0662 error code?
The most common causes of U0662 include: Open or short circuit in the actuator circuit; Thermal actuator motor malfunction; Problems with the climate control unit; Oxidation of contacts in connectors.
How do I fix a U0662 diagnostic trouble code?
To fix U0662: Check the integrity of the wiring to the actuator. Check the resistance of the motor winding. Clean connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0662?
Yes, but get it checked soon
How much does it cost to fix U0662?
The estimated repair cost for U0662 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat