GM Service Manual Online
For 1990-2009 cars only

Data

Battery Voltage: The scan tool displays the battery voltage of the vehicle.

ID Information

VIN Number: The scan tool displays the vehicle identification number.

Ignition Data

Accessory: The scan tool displays On when the accessory relay is active.

Battery 1: The scan tool displays the value of the vehicle battery voltage.

Ignition Accessory: The scan tool displays Active when the ignition switch is in the Accessory or Run position.

Ignition Mode Switch: The scan tool displays the value of the Passlock data voltage, which is the signal at the Off/Run/Crank circuit of the Ignition switch output and the BCM input.

Ignition Run/Crank: The scan tool displays High when the vehicle ignition switch is in the Run or Crank position.

Key in Ignition: The scan tool displays Yes when the key is in the ignition.

Power Mode: The scan tool displays Run when the ignition switch is in the Run position. Accy will be displayed in the Accessory position. Accy will also be displayed when the vehicle is in the RAP power mode. Off will be displayed when the ignition switch is in the Off position after the RAP function has timed out or has been overridden by a door switch.

Run/Crank Relay Command: The scan tool displays On when the Run/Crank relay is active.

Input

Driver Door Switch: The scan tool displays the state of the drivers door.

Pass Door Switches: The scan tool displays the state of any of the passengers doors.

Module Information

Last 4 Digits of Part No.: The scan tool displays the last four digits of the BCM part number.

Last 4 Digits of SDM Part No.: The scan tool displays the last four digits of the SDM part number.