U01B8 - Lost Communication With Switch Input Module “B”
U01B8 is a generic network/communication diagnostic trouble code indicating Lost Communication With 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 | B8 |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code U01B8 mean?
The dtc/">diagnostic trouble code U01B8 represents Lost Communication With 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 U01B8 are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about U01B8
What does U01B8 mean?
The diagnostic trouble code U01B8 represents Lost Communication With 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 U01B8?
The U01B8 code is located in the vehicle's Network/Communication network.