Where is the third brake light wire on a 2015 Silverado?
If you follow wiring harness feeding the 7-way trailer connector from the bumper up toward the spare tire and peel back the wire loom, you should be able to find an additional blue wire in the harness. The blue wire carries the 3rd brake lamp signal for your bed topper.
Where is the Chmsl fuse?
Registered. Should be a 10amp fuse labeled VEH CHMSL (center high mounted stop light) In the interior fuse panel on the left side of the dash.
What is the veh Chmsl fuse?
CHMSL. Center High-Mount Stop Light (on back of a motor vehicle)
What is a vehicle Chmsl signal?
CHMSL = Center High Mounted Stop Light (or Lamp, if you so prefer). A GM lighting technology, the Center High Mounted Stop Lamp is the horizontal stop light that typically sits at or near the top of a vehicle, and helps following vehicles better see a vehicle that’s applying its brakes and slowing.
Is there a fuse for the 3rd brake light?
Blown Fuse If all three of your brake lights stopped working, a blown brake light fuse may be the problem. In that case, you don’t need to replace the third brake light. To determine if the fuse is the issue, you need to check it. Find the fuse box.
What is Chmsl in car?
CHMSL are red stop lamps mounted on the center line of the rear of a vehicle, generally higher than the stop lamps on the sides of that vehicle. They are activated when the driver steps on the brake pedal and they are off at other times.
What does the CHMSL do?
The purpose of CHMSL is to safeguard a car or light truck from being struck in the rear by another vehicle. When brakes are applied, the CHMSL sends a conspicuous, unambiguous message to drivers of following vehicles that they must slow down.
Where is the CHMSL connector on a Silverado 1500?
When installing an aftermarket bed cap or topper on a 2014 Silverado 1500 or Sierra 1500, or a 2015 Silverado or Sierra, the wiring provisions for the Centre High Mounted Stop Lamp (CHMSL) are provided at the Rear Body Junction Block (X63A) connector X6, terminal 1. Follow the installation guidelines based on the vehicle configuration.
What kind of wire do I need for a CHMSL cap?
Obtain an appropriate length of 14-gauge wire to run from the Rear Body Junction Block up to the CHMSL wiring for the cap or topper. Create a terminated lead using the appropriate terminal and wire seal and connect it to one end of the wire. Install the terminated lead into the X6 connector, terminal 1.
What is Terminal 7 on a CHMSL cap?
Terminal 7 is a ground circuit used for the under rail bed lighting and it can be used to ground the CHMSL for the cap or topper, if desired. If terminal 7 is not used, remove the terminal and install a rubber cavity plug or cut off the additional wiring, leaving a couple inches of wire, and seal the end of the wire.
Where do I hook up a CHMSL cap on a truck?
The ground for the cap or topper CHMSL will need to be made to an appropriate ground. Trucks not equipped with the under rail bed lighting option will have a dummy connector at the X6 position of the Rear Body Junction Block. The X6 connector body is not available separately, but can be obtained by ordering the under rail bed lighting harness.