U04BB - Invalid Data Received from Switch Input Module “B”
U04BB is a generic network/communication diagnostic trouble code indicating Invalid Data Received from Switch Input Module “B”. It relates to the System-Specific system.
DTC Breakdown (SAE J2012)
| System | Network/Communication (U) |
| Type | Generic |
| Subsystem | System-Specific |
| Fault Index | BB |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code U04BB mean?
The dtc/">diagnostic trouble code U04BB represents Invalid Data Received from Switch Input Module “B”. 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 U04BB are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about U04BB
What does U04BB mean?
The diagnostic trouble code U04BB represents Invalid Data Received from Switch Input Module “B”. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.
What is the system for U04BB?
The U04BB code is located in the vehicle's Network/Communication network.