Trailer Lamp Control Module Scan Tool Information

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

Trailer Interface Control Module Scan Tool Data Parameters

Parameter	System State	Expected Value	Description
Operating Conditions: Ignition ON
Battery Voltage	-	Varies 12-14 V	The scan tool displays volts. This is the voltage of the trailer lighting converter.
Brake Pedal Switch Status	-	Inactive	The scan tool displays Active when the brake pedal is pressed. The scan tool displays Inactive when the brake pedal is released.
Key in Ignition Status	-	Active	The scan tool displays Active when the Ignition is ON.
Trailer Connection Detected	-	No	The scan tool displays Yes if a trailer is connected to the vehicle.

Trailer Interface Control Module Scan Tool Output Controls

Output Control	Description
Left Trailer Tail Lamp	Commands the left trailer tail lamp ON and OFF
Left Trailer Turn Signal Lamp	Commands the left trailer turn signal lamp ON and OFF
Left Auxiliary Tail and Brake Lamp	Commands the left auxiliary tail and brake lamp ON and OFF
Left Rear Auxiliary Turn Signal Lamp	Commands the left rear auxiliary turn signal lamp ON and OFF
Left Tail Lamp	Commands the left tail lamp ON and OFF
Right Trailer Tail Lamp	Commands the right trailer tail lamp ON and OFF
Right Trailer Turn Signal Lamp	Commands the right trailer turn signal lamp ON and OFF
Right Auxiliary Tail and Brake Lamp	Commands the right auxiliary tail and brake lamp ON and OFF
Right Rear Auxiliary Turn Signal Lamp	Commands the right rear auxiliary turn signal lamp ON and OFF
Right Tail Lamp	Commands the right tail lamp ON and OFF
Trailer Brake Lamps	Commands the trailer brake lamps ON and OFF
Trailer Backup Lamps	Commands the trailer backup lamps ON and OFF
Trailer Fog Lamp(s)	Commands the trailer fog lamp(s) ON and OFF