GM Service Manual Online
For 1990-2009 cars only

Scan Tool Output Controls

Output Control

Description

Refer to the scan tool manual for complete scan tool operating instructions.

2WD High Indicator Light

This function allows the technician to command the 2WD high indicator light, within the accessory switch, on or off.

4WD High Indicator Light

This function allows the technician to command the 4WD high indicator light, within the accessory switch, on or off.

4WD Low Indicator Light

This function allows the technician to command the 4WD low indicator light, within the accessory switch, on or off.

ATC Motor A Control

This function allows the technician to energize the motor, causing it to shift the transfer case through all five modes.

Engage Front Axle

This function allows the technician to engage and disengage the front axle actuator. When the front axle actuator is engaged, the front axle becomes a live axle, causing the front propshaft to turn.

Neutral Indicator Light

This function allows the technician to command the neutral indicator light, within the accessory switch, on or off.