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 On/Off. The scan tool displays On when the module commands the generator ON.

COMMANDED STARTER: The scan tool displays Disabled/Enabled. The scan tool displays Enabled when all Starting parameters are confirmed and the PCM grounds the crank relay.

STARTER ENABLE RELAY: The scan tool displays OK/Fault. The scan tool display OK when the module receives battery positive voltage on the CRANK relay control circuit or the ignition is in the START position.

VTD FUEL DISABLE: The scan tool displays Active/Inactive. The scan tool displays Inactive unless the Vehicle Theft Deterrent (VTD) has been activated.