GM Service Manual Online
For 1990-2009 cars only

Data

Battery Voltage: The scan tool displays the battery system voltage.

Input

Left Rear Door Jamb Switch: The scan tool displays the position of the left rear door. The scan tool displays On when the door is open.

Right Rear Door Jamb Switch: The scan tool displays the position of the right rear door. The scan tool displays On when the door is open.

Ignition 0: The scan tool displays the position of the ignition switch. The scan tool displays On when the ignition switch is in the Accessory, RUN or CRANK position.

Ignition 1: The scan tool displays the position of the ignition switch. The scan tool displays On when the ignition switch is in the Run or Crank position.

Ignition 3: The scan tool displays the position of the ignition switch. The scan tool displays On when the ignition switch is in the RUN position only.

Ignition Accessory: The scan tool displays the position of the ignition switch. The scan tool displays On when the ignition switch is in the Accessory or RUN position only.