DTC B1956 Acura
Rear MICU Lost Communication with Gauge Control Module (A T Message)
Rear MICU Lost Communication with Gauge Control Module (A T Message)
Description
Poor Communication between the rear MICU and the Gauge Control Module. If DTCs B1011, B1061, and B1906 also indicated, perform the gauge control module input test. If no additional codes are present, perform, the rear MICU input test. 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 rear MICU and the Gauge Control Module
Blown fuse in the main under-hood fuse box
Blown fuse in the under-dash fuse relay box
Open or Short Condition between the ear MICU and the Gauge Control Module
Video Guide
Diagnostic Info
- DTC Code: B1956
- Brand: Acura