DTC B1255 Acura
Combination Switch Control Unit Lost Communication with MICU (MICU Message)
Combination Switch Control Unit Lost Communication with MICU (MICU Message)
Description
Poor communication between the Combination Switch Control Unit and the MICU. If DTCs B1055, B1157, B1806, B1955, and B2155 are indicated, perform the MICU input test. In no other codes are present perform the Combination Switch Control Unit input test
Cause and Solution
Loose or poor connections between the Combination Switch Control Unit and the MICU
Blown fuse in the main under-hood fuse box
Blown fuse in the under-dash fuse relay box
Open or Short to ground at the Combination Control Unit
Open or Short to ground at the MICU
Faulty MICU
Video Guide
Diagnostic Info
- DTC Code: B1255
- Brand: Acura