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

COMMANDED GEN: The scan tool displays Disabled until the generator is commanded ON by the PCM.

GENERATOR LAMP: The scan tool displays ON/OFF. The scan tool displays OFF until the generator lamp is commanded ON by the PCM.

GENERATOR PWM: The scan tool displays the % time that the generator is ON.

GENERATOR LAMP CIRCUIT: The scan tool displays OK/Fault. The Scan tool displays Fault when the generator lamp circuit is open.

IGNITION 1: The scan tool displays 0-18 Volts. The voltage measured between the module's Ignition 1 voltage circuit and ground circuit.

VTD FUEL DISABLE: The scan tool displays ON/OFF. The scan tool displays ON when the Vehicle Theft Deterrent (VTD) is active.