Can trailer brake relay on 2011 chev be interchanged with 2008 chevy.both have identical connectors and same wire colour code

SOURCE: Only the left rear trailer light comes on when I apply the brakes.

I had the same problem with my 2002 Silverado last summer when I first bought my boat and was getting the trailer ready to go. Like an idiot, I rewired the boat trailer on that side before I decided to look at the owner's manual. The pickup has separate fuses for right and left side of trailer. They're located in the big box in the engine compartment. I replaced the 10 or 15 size fuse and haven't had a problem since. Hope this helps!

Ned C Cook

• 3433 Answers
• Posted on May 06, 2009

SOURCE: looking for color code (diagram) - 7 wire trailer harness/wiring

If you haven't purchased the plugs yet. The wire color codes should be included in the package.

• If you are using used plugs ck the back of the plugs for color or function of wire
• Wht - ground
• red - stop
• blue - accessory/aux
• brown - tail
• black - Marker
• grn - left turn
• yellow - right turn

SOURCE: Right side trailer brake light does not work

Did yo check the fuse panel inside the truck its located on the drivers side dash , you have to open the driver side door, in there is a 10 amp fuse that is linked to rt trailer brakes and rt turn signal for the trailer, if the fuse is good there is a black box under the dash located on the floor on the driver side, just to the left of the break, thats where must of the plug in wire harness is for the trailer breaks!

SOURCE: Travel Trailer wiring, lights and electronic brake control

i have a 1996 chevy 1500 bought a brake controler but what wire do i put the blue wire to ther are 4 white wires from brake peddle that go on when peddle is pressed on.

SOURCE: trailer wiring

Have you checked the fuse box under the hood? There are seperate fuses for the truck lights and the trailer lights. If the fuses look good use a 12 volt test light to check for power on the turn signal pins when the brake is pushed. The brake lights and turn signals use the same wires to work. Power here would indicate the wiring and fuses on the truck is all good, meaning the trouble is on the trailer. Check the bulbs to be sure they are the correct ones, they should be dual element bulbs. Make sure you have a good ground on the trailer, usually the white wire in the 4 way plug is grounded to the trailer frame, do not depend on the trailer ball to be the ground, this is asking for trouble.