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Today on this 2011 Toyota Rav-4 were going to install part number 90885 from Tekonsha. This is a P2 brake controller. Were going to use two additional parts to install this brake controller. Were going to use ETBC7 and then were going to use a short bracket, part number 18140. First well go ahead and take the bracket and were going to attach it to the hitch. Take the bracket, put it on top of the hitch and run a clamp around it.
Then well go ahead and snug it up. Were going to actually have this tilted down at a slight angle. Next well take the seven pole bracket that comes with the ETBC7 kit and were going to attach it to the previously installed bracket. Once we have those two tightened down, were going to take a pair of pliers and were going to gently pull the second bracket out a little way until where its vertical. Now well go ahead and install the seven pole connector.
Well run our wires through the bracket and use the provided hardware to install it. Now well go ahead and install the four pole connector to the previously installed four pole connector thats already on the vehicle. Well use some dye electric grease to help protect the connections, and well make a semi-permanent connection. Well go ahead and seal it up with some electrical tape, and well also use a zip tie to help keep things together. Well take our grey wire and connect it up to our seven to four pole adapter.
Were going to hook it to the two leads that already have the butt connectors on them, the black and the blue. Were going to connect black to black and blue to white. Our black wire is going to be our 12 volt power supply coming from the battery, and our blue wire going to the white wire will be the brake controller output. That white wire will eventually be reconnected to the blue wire on our brake controller. Now well go ahead and take the white wire and the purple wire from the seven pole connector and well go ahead and wrap it up with some tape to the grey cable.
Well do some initial routing of the grey cable going toward the front of the vehicle. Well take a moment to go ahead and ground the ring terminal to the frame. At this point we can go ahead and take a few moments to go ahead and zip tie the wires to make sure they are safe and out of the way. Then well go ahead and continue on running our grey cable up toward the front of the vehicle. Follow along the gas tank going up toward the firewall up front. We want to make sure we stay away from anything thats hot, like the exhaust or anything thats moving like suspension components. Well go ahead and run the grey cable up and pull it through the top of the engine compartment. Then well go ahead and route it towards our battery. Now well go ahead and take our grey cable and well go ahead and split it in half. The white wire will peal back and well run that to the inside of the vehicle to the brake controller. We also need a location to install the circuit breakers for our kit. Theres a cross member that goes across the front of the vehicle and we can use that, however it is covered up with a plastic shield, so well go ahead and remove the fasteners and take the shield out of the way for now. The fasteners are pretty easy to remove. You press down on the center and then you can go ahead and remove the fastener. Once the shield is removed we can see the cross member. Take our circuit breakers and attach it to the cross member. Well be using a 20 amp circuit breaker for our brake controller and well install a 40 amp circuit breaker for our 12 volt power supply. Our black wire will run through the 40 amp circuit breaker and on to the positive side of the battery. Well leave our final connections going to the battery as one of our last steps. Next were going to go ahead and reuse the excess cable that we used from routing to our battery. Were going to use that wire to run our power feed from the brake controller to the battery. To run the wires into the vehicle were going to have to make a hole in the grommet thats inside the vehicle. Well point it out with a screw driver here, and then well use it to go ahead and pierce the grommet to get to the outside. You can get to it with a knife, however its pretty tight and pretty far up there, so you may end up using the screw driver to make the hole bigger. Now well go ahead and use something to pull the wires through. In this case were using a piece of airline tubing. Well run the tubing through and then attach our wires that were going to pull from the outside to the inside. Well tape them together and pull them on through easily. Well pull our white wire through and well pull our grey cable through. Our cable for our brake controller will have to split that back as well. The black wire in that cable will go to the 20 amp circuit breaker and then onto the battery. Then the white wire will be ran to ground on the battery. Well leave our final connections going to the battery as one of our last steps. At this point we can go ahead and reinstall the plastic shield. Well do a quick test to see if it interferes with post on our circuit breakers. It looks like it does, so were going to shorten the posts up using a rotary tool and then well reinstall the plastic shield. Then well reinstall the fasteners. With our wires pulled to the inside, we can go ahead and start making some connections. Were going to start off by looking for the brake signal coming off the brake switch. It is tucked up pretty tight in there so it will take some patience to get to. What may help is well go ahead and release the connector that goes to your brake switch for the wiring and pull it down. That will make it a little bit easier to pull the sheath away from the wires so we can test to see what wire we need. Well go ahead and put it back into place and then well go ahead and test our wire. It looks like the blue wire in the bundle is going to be our brake signal. Now well go ahead and get our harness that comes with the brake controller. It will be a small black plug with four wires attached to it. Well take the red wire out of that bundle and well connect that to our brake signal. In this case its going to be a red wire going to the blue wire underneath the dash. Now well go ahead and connect the rest of our wires. Well go ahead and cut the sheath away from the grey cable and well go ahead and match up color for color black to black and white to white. If you remember our single white wire that we pulled through, well connect it to the blue wire from the same plug. Well go ahead and wrap it up with some tape. Now well go ahead and mount the bracket to the vehicle. Theres a small, flat section underneath the dash and well use the provided screws to attach it to. Well attach the bracket with one screw and then well use the brake controller to make sure that the bracket will put the brake controller in a straight line with the rest of the vehicle. Well go ahead and send our second screw in and then we can go ahead and start attaching our brake controller. Well take the small plug and put it into the back of the brake controller and install the brake controller into the bracket. There will be two Phillips head screws that will connect the bracket to the brake controller. Now well go ahead and take the excess wires and well go ahead and zip tie them up underneath the dash. Now well go back underneath the hood and hook up the two black wires to the positive side of the battery. Our lone white wire with the ring terminal will go to the negative side of the battery. With everything hooked up lets go ahead and check the brake controller. The brake controller should show an NC for no connection, and then just show two dots at the bottom, so that in case we have power going to the brake controller. Now well go ahead and plug in to the back, and you can see we have a C for connection. Well move the manual override and we can see we have numbers build up from zero to 11. Well go ahead and hit the boost button and scroll through the boost settings, B1, B2 and B3, and No Boost. Well leave it at B1. Well go ahead and hit the brake pedal and you can see it shows a little of the boost setting right off the bat. It looks like everythings working, so that will finish it for our install of part number 90885 from Tekonsha, the P2 brake controller on our 2011 Toyota Rav-4.
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