DTC B2161 Acura
Drivers MPCS Unit Lost Communication with MICU (DOORSW Message
Drivers MPCS Unit Lost Communication with MICU (DOORSW Message
Description
Poor communication between the Drivers MPCS Unit and the MICU. (Door switch malfunction) NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
Cause and Solution
Loose or poor connections between the drivers MPCS unit and the MICU
Open or Short to ground
Faulty MICU, replace the under-dash fuse relay box
Video Guide
Diagnostic Info
- DTC Code: B2161
- Brand: Acura