Component Description: SCMH

The SCMH controls the operation of the passenger multi-contour seat. PMI is required when a new SCMH is installed. The SCMH communicates on the MS-CAN. The SCMH controls the air pump (part of the front seat power lumbar assembly) which supplies the air pressure necessary to be diverted to the applicable air bladders as required for the desired mode(s) of operation.