U0466
Invalid Data Received From HVAC Control Module - Rear
U0466 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From HVAC Control Module - Rear. Common causes: malfunction of the rear climate control module, problems with wiring to the rear module. Estimated repair cost: $56–278.
Symptoms
- Incorrect operation of the rear climate control unit
- Lack of response to rear temperature adjustments
- Error message on the climate control display
- Rear fans run at constant speed
- Uneven temperature distribution in the cabin
Causes
- Malfunction of the rear climate control module
- Problems with wiring to the rear module
- Corrosion of contacts or connectors
- Software error in the module
- Damage to the CAN bus
How to Fix
- Diagnostics of the rear climate control module
- Checking the integrity of wiring and connectors
- Resetting the error and checking for recurrence
- Module software update
- Replacing the rear climate control module if necessary
Related codes
Error U0466 by Vehicle Brand
FAQ
What does the U0466 code mean?
U0466 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From HVAC Control Module - Rear
What causes a U0466 error code?
The most common causes of U0466 include: Malfunction of the rear climate control module; Problems with wiring to the rear module; Corrosion of contacts or connectors; Software error in the module.
How do I fix a U0466 diagnostic trouble code?
To fix U0466: Diagnostics of the rear climate control module. Checking the integrity of wiring and connectors. Resetting the error and checking for recurrence. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0466?
Limited driving only, diagnose soon
How much does it cost to fix U0466?
The estimated repair cost for U0466 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat