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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Principles of Operation

PRINCIPLES OF OPERATION

The driver seat module (DSM) supports several vehicle subsystems and permits inter-module and scan tool communications.

The memory driver seat feature allows the driver to program a personalized seat position that can be recalled using the memory switches. Refer to Seats.

The adjustable pedals are also controlled by the DSM. This system permits the adjustment of the brake and accelerator pedals using the adjustable pedal switch. Refer to Brakes and Traction Control.