Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Memory Seat Module (MSM) Definitions

Battery Voltage: The scan tool displays 0-16 volts. The level of battery voltage at the module.

Current: The scan tool displays 0.127.5 amps. The current measured during seat operation.

Belt Tower Down: The scan tool displays Inactive/Active. When the seat belt tower down switch is activated, the scan tool will momentarily display Active.

Belt Tower Up: The scan tool displays Inactive/Active. When the seat belt tower up switch is activated, the scan tool will momentarily display Active.

Belt Tower Sensor: The scan tool displays 0.5.0 volts or 0-255 A/D. The sensor potentiometer provides an analog voltage which varies directly with the belt tower position. High scan tool values, volts or A/D, indicate that the belt tower is in the up position and low values indicate that the belt tower is in the down position.