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

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Main Components and Functions




Main Components and Functions

Overview of Construction and Function









Planetary Gear Sets

The individual gears are shifted by means of 2 planetary gear sets, connected one behind the other.

Clutches and Bands

The individual ratios are selected by means of 4 multi-plate clutches, a brake band and a roller One-Way Clutch (OWC).

The components are controlled by the PCM through Pulse-Width Modulation (PWM) solenoid valves.