B21100A

Service Bulletin Details

Public Details for: B21100A

Servicenews article - there are several possible causes for the srs dtc U3000-49 (internal failure of the srs unit) to be stored. If you can duplicate the dtc, the troubleshooting will take you through the step-by-step process in isolating


- 2020 -

Models from 2020
2020 ACURA ILX
2020 ACURA MDX
2020 ACURA NSX
2020 ACURA RDX
2020 ACURA RLX
2020 ACURA TLX 
ServiceNews Article
October 2021
B21100A Version 1
SRS DTC U3000-49 Internal Failure Of The SRS Unit
AFFECTED VEHICLES
Year
Model
Trim Level
2020
ILX
ALL
2020
MDX
ALL
2020
NSX
ALL
2020
RDX
ALL
2020
RLX
ALL
2020
TLX
ALL
There are several possible causes for the SRS DTC U3000-49 (Internal Failure of the SRS Unit) to be stored. If you can
duplicate the DTC, the troubleshooting will take you through the step-by-step process in isolating the faulty component.
In most situations, the SRS Unit should be last on the list of components to replace. Here is a quick tip for troubleshooting
a faulty seat weight sensor.
Disconnect all seat weight sensors and clear DTCs. If the DTC does not reappear then replace seat frame/rail.
NOTE: If you are not fully replacing the seat frame and are using a known good one, always find a vehicle with the same
trim level. Swapping seat frames with different trim levels may result in the same DTC condition and cause confusion.
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