Scan Tool Output Controls. GMC Truck Envoy - 2WD 2003

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2003 🢒 Envoy - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Scan Tool Output Controls

Table 1:	Body Control Module (BCM)
Table 2:	Driver Door Module (DDM)
Table 3:	Passenger Door Module (PDM)

Body Control Module (BCM)

Scan Tool Output Control	Additional Menu Selection(s)	Description
Light Test	Daytime Running Lamps	The BCM reduces the 100 percent pulse width modulated (PWM) headlamp driver module (HDM) control signal to a 85 percent duty cycle when there is sufficient light to the ambient light sensor and you select ON. The daytime running lights will remain illuminated until commanded OFF.
Light Test	Parking Lamps	The BCM activates the park lamp relay when you select ON. The park lamps illuminate until commanded OFF.
Light Test	Backup Lamps	The BCM activates the backup lamp output when you select ON. The backup lamps illuminate until commanded OFF.
Lamp Dimming Test	Dimming	The BCM adjusts the dimming output level when you select the percentage of illumination desired. The dimmable IP lamps will illuminate to the level set by the scan tool when the IP dimmer switch is in the FULL DIM position.

Driver Door Module (DDM)

Scan Tool Output Control	Additional Menu Selection(s)	Description
Door Backlight Test	--	The DDM activates the driver door backlighting outputs when you select ON. The door backlighting will remain illuminated until commanded OFF.

Passenger Door Module (PDM)

Scan Tool Output Control	Additional Menu Selection(s)	Description
Door Backlight Test	--	The DDM activates the passenger door backlighting outputs when you select ON. The door backlighting will remain illuminated until commanded OFF.