GM Service Manual Online
For 1990-2009 cars only
Actual Position: The scan tool displays steps. The value (steps) varies based on the position of the sun roof glass: full vent position 14 steps (approximately), closed position 60 steps (approximately), full open position 240 steps (approximately). These values can be compared to the Command Position.

Battery Voltage: The scan tool displays voltage. The voltage measured from the modules battery positive voltage circuit to the module's ground circuit.

Command Position: The scan tool displays steps. The value (steps) varies based on the position of the sun roof switch knob: full vent position 14 steps (approximately), closed position 60 steps (approximately), full open position 240 steps (approximately). These values can be compared to the Actual Position.

Country Code: The scan tool displays USA.

Door Switch: The scan tool displays Active/Inactive. The input of the Door Switch is displayed as Inactive, with all doors closed. The input of the Door Switch is displayed as Active, with any door open.

Ignition Status: The scan tool displays Off/On. The input of the Ignition Status varies on the scan tool display.

Jammed Position 0: The scan tool displays steps. This step value is the latest jammed position as to what position the sun roof was interfered with, causing the sun roof to stop while closing and reverse back to a predetermined open position.

Jammed Position - 1: The scan tool displays steps. This step value is the second latest jammed position as to what position the sun roof was interfered with, causing the sun roof to stop while closing and reverse back to a predetermined open position.

Jammed Position - 2: The scan tool displays steps. This step value is the third latest jammed position as to what position the sun roof was interfered with, causing the sun roof to stop while closing and reverse back to a predetermined open position.

Jammed Position - 3: The scan tool displays steps. This step value is the fourth latest jammed position as to what position the sun roof was interfered with, causing the sun roof to stop while closing and reverse back to a predetermined open position.

Jammed Position - 4: The scan tool displays steps. This step value is the fifth latest jammed position as to what position the sun roof was interfered with, causing the sun roof to stop while closing and reverse back to a predetermined open position.

Jammed Position - 5: The scan tool displays steps. This step value is the sixth latest jammed position as to what position the sun roof was interfered with, causing the sun roof to stop while closing and reverse back to a predetermined open position.

Jammed Position - 6: The scan tool displays steps. This step value is the seventh latest jammed position as to what position the sun roof was interfered with, causing the sun roof to stop while closing and reverse back to a predetermined open position.

Jammed Position - 7: The scan tool displays steps. This step value is the eighth latest jammed position as to what position the sun roof was interfered with, causing the sun roof to stop while closing and reverse back to a predetermined open position.

Ref. Position (Closed): The scan tool displays steps. The input of the Ref. Position (Closed) is displayed as 60 steps (approximately).

Set Key: The scan tool displays Off/On. The input of the Set Key is displayed as Off with sun roof control knob not pressed inward/upward. The input of the Set Key is displayed as On with sun roof control knob pressed inward/upward.

Sun Roof Down/Open: The scan tool displays Off/On. The input of the Sun Roof down/open is displayed as Off with no movement of the sun roof glass. The input of the Sun Roof down/open is displayed as On, as the sun roof glass is moving from the vent up position to the closed position (down) or from the closed position to the open position (open).

Sun Roof Motor Current: The scan tool displays amps. The input of the Sun Roof Motor Current varies on the scan tool display.

Sun Roof Motor Speed: The scan tool displays RPM. The input of the Sun Roof Motor Speed varies on the scan tool display.

Sun Roof Status: The scan tool displays Closed/Open. The input of the Sun Roof Status will display Closed when the sun roof is fully closed. The input of the Sun Roof Status will display Open with the sun roof in any open position.

Sun Roof Up/Close: The scan tool displays Off/On. The input of the Sun Roof up/close is displayed as Off with no movement of the sun roof glass. The input of the Sun Roof up/close is displayed as On, only as the sun roof glass is moving to the vent up or when moving from the open position (not vent up position) to the closed position.

Vehicle Speed: The scan tool displays mph. The input of the Vehicle Speed varies on the displayed on the scan tool.