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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SCP Communication Network

The Powertrain Control Module (PCM)is on the SCP communication network. The PCM controls the engine for better fuel economy, emissions control and failure mode detection and storage.

The Passive Anti-theft System (PATS) module is on the SCP communication network. The PATS module contains circuitry to connect the vehicle electrical system, the transceiver module, the vehicle module communications network and the vehicle theft indicator located in the instrument cluster. The PATS module uses a microprocessor to control the system functions. The PATS module microprocessor stores the ignition key codes in non-volatile memory. The PATS module can be diagnosed through the data link connector.

The Electronic Automatic Temperature Control (EATC) module is linked to the SCP communication network. The EATC module controls automatic climate functions that maintain the interior at a constant temperature setting.

The Driver Seat Module (DSM) is connected on the SCP communication network. The DSM controls the power seat and memory functions.