GM Service Manual Online
For 1990-2009 cars only

BCM

Scan Tool Output Control

Additional Menu Selection(s)

Description

Accy. Relay Command

Vehicle Control Systems/Computer Integrating Systems/Special Functions

Commands the Accessory relay ON/OFF.

Run/Crank Relay Control

Vehicle Control Systems/Computer Integrating Systems/Special Functions

Commands the Run/Crank relay ON/OFF.