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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Automatic Transaxle

Electronic Control Assembly (ECA):






The Powertrain Control Module (PCM) controls driveablity, emissions, and fuel economy. Based on input data received from sensors, switches, and relays, the PCM generates output signals controlling various relays, solenoids, and actuators.