Acura B2157: Driver's MPCS Unit Lost Communication with Gauge Control Module (ILLUMI Message)
Is your scanner showing Acura B2157?
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Acura B2157: Driver's MPCS Unit Lost Communication with Gauge Control Module (ILLUMI Message)
OVERVIEWWhat Does The Acura B2157 Code Mean?
Poor communication between the driver’s MPCS unit and the Gauge Control Module.
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A. If DTCs B1011, B1060, B1061, B1205, B1206, B1207, B1359, B1906, B1956, B2157, and/or B2160 are also indicated, perform the Gauge Control Module input test. If no codes are present, perform the driver’s MPCS unit input test.
What Are The Potential Causes Of The Acura B2157 Code?
- Loose or poor connections between the driver’s MPCS unit 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 driver’s MPCS unit and the Gauge Control Module
- Faulty Gauge Control Module
- Faulty Driver’s MPCS Unit
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Acura Under-dash Fuse/Relay Box
>>> Acura Gauge Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura B2157, DTCDECODE.
