Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Component Description: SCMG
The SCMG controls the operation of the driver multi-contour seat. PMI is required when a new SCMG is installed. The SCMG communicates on the MS-CAN. The SCMG controls the air pump (part of the front seat power lumbar assembly) which supplies air pressure necessary to be diverted to the applicable air bladders/bolsters as required for the desired mode(s) of operation.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.