U05A1 - NOx Sensor A Received Invalid Data From ECM/PCM
U05A1 is a generic network/communication diagnostic trouble code indicating NOx Sensor A Received Invalid Data From ECM/PCM. It relates to the System-Specific system.
DTC Breakdown (SAE J2012)
| System | Network/Communication (U) |
| Type | Generic |
| Subsystem | System-Specific |
| Fault Index | A1 |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code U05A1 mean?
The dtc/">diagnostic trouble code U05A1 represents NOx Sensor A Received Invalid Data From ECM/PCM. 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 U05A1 are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about U05A1
What does U05A1 mean?
The diagnostic trouble code U05A1 represents NOx Sensor A Received Invalid Data From ECM/PCM. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.
What is the system for U05A1?
The U05A1 code is located in the vehicle's Network/Communication network.