Auto Learn Counter: The scan tool displays the current status of the theft deterrent module (TDM) auto learn counter.

Auto Learn Timer: The scan tool displays the current status of the TDM auto learn timer in minutes.

Battery Reconnect: The scan tool displays Yes or No to indicate whether a battery reconnect. This is used for substitution detection to determine if a check needs to be made for substituted parts.

CTD Status: The scan tool displays the current arming status of the content theft system.

Current CTD Trigger: The scan tool displays the current input which has cause a content theft alarm.

Driver Identification: The scan tool displays the driver which has disarmed the content theft system.

ECM Authentication Status: The scan tool displays the current authentication status of the fuel enable password from the TDM. A valid status would allow engine starting. An unknown, incorrect, or negative response would disable engine starting. An unknown, incorrect, or negative response would indicate a vehicle key malfunction, a TDM malfunction, or a communication malfunction.

ECM Challenge Status: The scan tool displays the current challenge response status from the TDM. Valid would equal a valid challenge response from the TDM. Invalid would equal an invalid challenge response. Engine starting is allowed with a valid response and disabled with an invalid response.

ECM Response Source: The scan tool displays where the start request is sourced from; either normal start or remote start.

Ignition Voltage Signal: The scan tool displays if ignition voltage is present at the TDM.

Immobilization: The scan tool displays the immobilization status.

Immobilizer Programmed: The scan tool displays the programmed status of the engine control module (ECM). If the ECM theft deterrent information has been learned, the scan tool will displays Yes.

Left Rear Door Ajar Switch: The scan tool displays the current status of the left rear door ajar switch.

Hood Closed Switch: The scan tool displays the status of the hood closed portion of the hood ajar switch.

Hood Open Switch: The scan tool displays the status of the hood open portion of the hood ajar switch.

Master Keys Learned: The scan tool displays the number of master keys learned.

PCM Auto Learn Timer: The scan tool displays the current status of the powertrain control module (PCM)/ECM auto learn timer.

PCM Password Learning: The scan tool displays enabled or disabled based on whether the PCM/ECM is in learn mode.

Power Mode: The scan tool displays the current power mode as seen at the TDM.

Powertrain DTC: The scan tool displays Yes if powertrain theft DTC's are present.

Previous TDM State: The scan tool displays the last state of the TDM.

Right Rear Door Ajar Switch: The scan tool displays the current status of the right rear door ajar switch.

Security Code Programmed: The scan tool displays the status of the ECM learn. The scan tool displays Yes when the ECM has learned the theft information.

Start Disabled: The scan tool displays whether starting is disabled.

Tamper Status: The scan tool displays whether theft is in the tamper state.

TDM State: The scan tool displays the current VTD state as reported at the TDM.

Telltale Status: The scan tool displays the current status of the theft indicator as controlled by the VTD system.

Theft LED: The scan tool displays the current status of the theft indicator as controlled by the CTD system.

Theft Problem: The scan tool displays whether there is a problem with the VTD system.

Total Keys Learned: The scan tool displays the total number of vehicle keys learned. This includes master, valet, and fleet keys (where applicable).

Transponder Key: The scan tool displays Yes if a transponder key is present.

Valid Key: The scan tool displays Yes if a valid transponder key is present.

VIN Message Received: The scan tool displays whether a VIN message has been received from the VIN master. This is used by substitution detection as a way for the TDM to compare its stored VIN to that of the VIN master.

VTD Auto Learn Counter: The scan tool displays the current status of the ECM auto learn counter.

VTD Auto Learn Timer: The scan tool displays the current status of the ECM auto learn timer.

VTD Password Learn Enabled: The scan tool displays the current learn status of the ECM. The scan tool will displays Yes when the ECM is in learn mode.

VTD Security Code Accepted: The scan tool displays the status of the challenge response received from the TDM. If the challenge response is valid, the scan tool will display Yes.

VTD Security Code Lockout: The scan tool displays the status of the challenge response lockout.

VTD Security Code Programmed: The scan tool displays the learn state of the ECM in reference to the challenge response. When programmed, the scan tool will display Yes.

VTD Security Info Programmed: The scan tool displays the learn state of the ECM in reference to the fuel enable password. When programmed, the scan tool will display Yes.

VTD System Status: The scan tool displays the current VTD status as reported by the ECM.