Operation CHARM: Car repair manuals for everyone.
Home >> Chevrolet >> 1999 >> Corvette V8-5.7L VIN G >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> Vehicle On-Board & Scan Tool Diagnostics >> Engine Scan Tool Data Definitions >> VTD Auto Learn Timer
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

VTD Auto Learn Timer

The scan tool displays Active or Inactive. The auto learn timer is the indication if the Vehicle Theft Deterrent (VTD) system is in the learn mode and has not timed out (10 minutes).
pro multis · About Operation CHARM