SDL Monitor Descriptions Explanations

VTD MODING: The VTD Moding Function is SET once the instrument cluster makes a theft decision.

REVERSE ROTATE: The Reverse Rotate function tells the powertrain control module (PCM) when to make the theft decision. If the Reverse Rotate function status is active, then the instrument cluster determined that the ignition switch is in the START position. Verify that the function reads INACTIVE if the ignition switch is not in the START position. Under certain circumstances, the PCM is able to make a theft decision independent of the Reverse Rotate function.

VTD PASSWORD: The VTD Password function indicates whether or not the instrument cluster sent the correct R-Code to the PCM. If the instrument cluster reads an R-Code, the instrument cluster will send the R-Code to the PCM. The VTD Password function will then read as ACTIVE. ACTIVE indicates that the instrument cluster received the R-Code from the PASSLOCK lock cylinder. If the instrument cluster did not read an R-Code, the VTD Password function will indicate NOT RECEIVE.

REFERENCE SYNC: The Reference Sync function tells the instrument cluster if the engine is cranking. VTD Acknowledge: The PCM outputs the VTD Acknowledge function if the Pass-Theft condition is present for the ignition cycle.

VTD TAMPER: The PCM outputs the VTD tamper function if the PCM determines a Failed-Theft condition for the ignition cycle. The VTD Tamper function may also set if the instrument cluster determines a Failed-Theft condition.