VIDEO

Acura DTC

Acura DTC B1812

Manufacture

Acura DTC

Code

B1812

Definition

Power Seat Control Unit Lost Communication with Drivers MPCS Unit (MEMSW Message)

Description

Poor communication between the Power Seat Control Unit and the Drivers MPCS Unit. NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A. If DTCs B1013, B1015, B1065, B1182, B1356, B1358, and B1905 are also indicated, perform the drivers MPCS unit input test. If no additional codes are present, perform the Power eat Control Unit Input Test.

Cause

  • Loose or poor connections between the Power Seat Control Unit and the Drivers MPCS unitBlown fuse in the main under-hood fuse boxBlown fuse in the under-dash fuse relay boxFaulty groundOpen or Short Condition between the Power Seat Control Unit and the Drivers MPCS UnitFaulty Drivers MPCS UnitFaulty Power Seat Control Unit

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