GM Service Manual Online
For 1990-2009 cars only
Table 1: BCM Scan Tool Output Controls
Table 2: ECM Scan Tool Output Controls

BCM Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selection(s)

Description

Shift Lock Solenoid

Special Functions - Output Control/Miscellaneous Test

The BCM controls the voltage to the automatic transmission shift lock control solenoid ON or OFF for 5 seconds. The scan tool displays ON/OFF

ECM Scan Tool Output Controls

Scan Tool Output Control

Additional Menu Selection(s)

Description

Reverse Inhibit

Special Functions - Output Control

The ECM controls the ground to the reverse lockout solenoid ON or OFF for 5 seconds. The scan tool displays Enable/Disable.