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)

Or, hide this message: temporarily or permanently

Scan Tool Data Definitions

SCAN TOOL DATA DEFINITIONS

8-Digit GM Part Number: The scan tool displays an 8-digit alphanumeric number. The part number of the module.

Component Serial # 8-11: The scan tool displays an 8-digit alphanumeric number. The part number of the module.

Component Serial # 12: The scan tool displays an 8-digit alphanumeric number. The part number of the module.

Component Serial # 13-1: The scan tool displays 0-9. The internal programing codes of the module.

Component Serial # 17-1: The scan tool displays 0-9. The internal programing codes of the module.

Fuel Door Unlock Relay: The scan tool displays ON when the relay has been activated.

Jullian Date of Build: The scan tool displays 0-999. The month and year that the module was built.

PROM ID: The scan tool displays 0-9999. The identification number of the radios internal PROM.

Trunk Ajar Switch: The scan tool displays ON when the switch has been activated.

Trunk Release Switch: The scan tool displays ON when the switch has been activated.

Year Module Built: The scan tool displays a 1990-2020. The production year the module was manufactured.