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

8 Digit GM Part Number: The scan tool displays the module part number.

Fuel Enable: The scan tool displays the state of fuel enable.

His. DTC Cyc. Counts: The scan tool displays the number of ignition cycles since the DTC was stored as a history code.

Key Read Status: The scan tool displays the current state of the key status.

Lock-Out Timer: The scan tool displays the duration of time the system remains in the tamper mode.

Manufactures Enable Counter: The scan tool displays the number of ignition cycles since the theft deterrent (VTD) module was installed.

Passkey State: The scan tool displays the state of the theft deterrent system.

PCM / VCM in VTD Fail Enable: The scan tool displays the modules fail enable state.

Prom ID: The scan tool displays the modules internal identifier.

Relearn Counter: The scan tool displays the number of remaining intervals required in order to enter the relearn first key mode.

Relearn Timer: The scan tool displays the duration of time the system remains in relearn wait mode.

Reset Counter: The scan tool displays the number of times the system abnormally exits one of the operating modes.

Security Indicator Status: The scan tool displays the current status of the security indicator. Security Mode: The scan tool displays the security mode current state.

Valid Key Code Counter: The scan tool displays the number of learned keys.

VTD Auto. Learn Timer: The scan tool displays the state of the PCM auto learn timer.

VTD Fuel Disable: The scan tool displays the state of fuel disable.

VTD Fuel Disable Until Ign. Off: The scan tool displays the state of fuel disable until ignition off.