For 1990-2009 cars

### Body Control Module (BCM)

ALC Status: The scan tool displays On/Off. When the ambient light level indicates low light level then the BCM will turn on the automatic light control (ALC) then the scan tool will display On.
Ambient Light Sensor: The scan tool displays the voltage reading of the ambient light sensor.
Backup Lamp Relay Command: The scan tool display On/Off. When the transmission is placed in the REVERSE position the scan tool displays On.
Day/Night Status: The scan tool displays Day/Night. When the daylight conditions are present the scan tool will display Day.
DRL Status: The scan tool displays On/Off. When the ambient light level indicates daylight level then the scan tool will display ON.
Flash to Pass Switch : The scan tool displays Inactive/Active. When Flash to Pass switch is placed in the OFF position, the scan tool displays Inactive.
Front Fog Lamp Relay Command: The scan tool displays On/Off. When the fog lamps are placed in the ON position then the scan tool displays On.
Front Fog Lamp Switch: The scan tool displays Inactive/Active. When the fog lamp switch is in the OFF position the scan tool displays Off.
Hazard Lamp Switch: The scan tool displays Inactive/Active. When the hazard switch is placed in the ON position, the scan tool will display ON.
Headlamps OFF Switch: The scan tool displays On/Off. When the headlamp switch is placed in the OFF position, the scan tool displays On.
Headlamps ON Switch: The scan tool displays Inactive/Active. When the headlamp switch is placed in the ON position, the scan tool displays Active.
High Beam Relay Command: The scan tool displays On/Off. When the high beam headlamps are turned on, the scan tool displays On.
High Beam Select Switch: The scan tool displays Inactive/Active. When the high beam headlamps are turned on, the scan tool displays Active.
Inadvert Power CMD: The scan tool displays On/Off. When the inadvertent power is being commanded on by the BCM the scan tool displays On.
Inadvert Power Signal: The scan tool displays Inactive/Active. When the inadvertent power is being commanded on by the BCM the scan tool displays Active.
Interior Light Command: The scan tool displays Off or On. When the interior lights are commanded on, On is displayed. When the interior lights are commanded off, Off is displayed.
Interior Lights Dimmed: The scan tool displays the percentage of dimming that is commanded by the IP dimmer switch.
IP Dimmer Switch: The scan tool displays the position of the IP dimmer switch in volts.
Left Turn Signal Switch: The scan tool displays Inactive/Active. When the turn signal switch is placed in the LEFT position, the scan tool will display Active.
LF Turn Lamp/DRL Status: The scan tool displays On/Off. When the DRL lamps are commanded on by the BCM or the turn signal switch is placed in the LEFT position, scan tool displays On.
Low Beam Relay Command: The scan tool displays On/Off. When the headlamp are turned on, the scan tool displays On.
LR Turn /Stop Lamp Status: The scan tool displays On/Off. When the DRL lamps are commanded on by the BCM or the turn signal switch is placed in the LEFT position, scan tool displays On.
Park Brake Switch: The scan tool displays Off or On. When the park brake is disengaged, Off is displayed. When the park brake is engaged, On is displayed.
Park Lamp Relay CMD: The scan tool displays On/Off. When the park lamps are turned on, the scan tool will display On.
Park Lamp Switch: The scan tool displays On/Off. When the park lamp switch is placed in the ON position, the scan tool will display On.
RF Turn Lamp/DRL Status: The scan tool displays On/Off. When the DRL lamps are commanded on by the BCM or the turn signal switch is placed in the RIGHT position, scan tool displays On.
Right Turn Signal Switch: The scan tool displays Inactive/Active. When the turn signal switch is placed in the RIGHT position, the scan tool will display Active.
RR Turn/Stop Lamp Status: The scan tool displays On/Off. When the DRL lamps are commanded on by the BCM or the turn signal switch is placed in the RIGHT position, scan tool displays On.
Stop Lamp Relay Command: The scan tool displays On/Off. When the brakes are applied, the scan tool displays On.