U040A - Invalid Data Received From Air Conditioning Control Module
U040A is a generic network/communication diagnostic trouble code indicating Invalid Data Received From Air Conditioning Control Module. It relates to the System-Specific system.
DTC Breakdown (SAE J2012)
| System | Network/Communication (U) |
| Type | Generic |
| Subsystem | System-Specific |
| Fault Index | 0A |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code U040A mean?
The dtc/">diagnostic trouble code U040A represents Invalid Data Received From Air Conditioning Control Module. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.
Detailed diagnostic guides and specific fix procedures for code U040A are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about U040A
What does U040A mean?
The diagnostic trouble code U040A represents Invalid Data Received From Air Conditioning Control Module. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.
What is the system for U040A?
The U040A code is located in the vehicle's Network/Communication network.