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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Scan Tool Data Definitions

SCAN TOOL DATA DEFINITIONS

Accessory Switch: Input from ignition switch Accessory circuit. Used to determine power mode. Hot in ACCESSORY and RUN.

Battery Voltage: The scan tool displays the vehicles system voltage in volts.

Ignition Run Start Relay: The scan tool displays the state of the control circuit of the ignition run start relay.

LF Door Ajar Switch: The scan tool displays the switch data of the left front door.

Left Rear Door Ajar Sw.: The scan tool displays the switch data from the left rear door.

RAP Relay: The scan tool displays the state of the RAP relay control circuit.

RF Door Ajar Switch: The scan tool displays the switch data of the right front door.

Right Rear Door Ajar Sw.: The scan tool displays the switch data of the right rear door.