Lost Communication With Cabin Air Quality Sensor Module
The U0244 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Cabin Air Quality Sensor Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $100 - $400 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Common Symptoms
- Automatic air recirculation not working
- Air quality indicator not displaying
- Cabin air filtration not adjusting automatically
- Auto climate mode not detecting poor air
Probable Causes (Ranked by Likelihood)
- Failed air quality sensor Very High
- Sensor contamination High
- CAN bus wiring fault Moderate
- Software error in HVAC controller Low
Step-by-Step Diagnostic Procedure
-
Check air quality sensor location and cleanliness
-
Test sensor power supply
-
Scan air quality module for codes
-
Reset HVAC system and retest
Frequently Asked Questions
Can I drive with U0244?
Yes. Manually control air recirculation. This is a comfort feature only.
What causes U0244?
Usually a contaminated or failed air quality sensor.
How much does U0244 cost to fix?
Typically $100 to $400. The sensor itself is inexpensive.
Sources
This page is built from documented references. Verify against your own service info before repair work.
Explore More
Was this helpful?
Share carcodefinder.com with a friend who needs to decode their check engine light.