Defender HD-11 DT-200 Boost Controller With Wire Harness Assy

Remove rubber matting from floor, It is held down by several trim clips that easily pull up with mat.

Remove (8) push darts and remove front center floor panel.

Remove the (8) T-30 screws from the passenger side floor and remove panel.

Remove the small panel on the front left of passenger side footwell. It is held in place by (2) T-30 and (2) T-20 screws.

4 Door Models Only: Remove (10) push darts from rear center panel. The front of the panel will have (1) 8mm screw threaded up from the bottom – remove. Remove the flexible rubber tube connecting to the rear air vents. Pull up and slide entire center panel forward.

On both sides remove (2) push darts and (1) T-30 from A-pillars. Use a pick to pull shock tab out.

Remove A-pillar plastic, push up and slide forward. Under the panels remove (2) T-30 screws on both sides.

Lift the front hood forward. Remove (2) T-30 screws from center of dash.

Lift the dash up on the passenger side, zip tie to the shock.

Remove the 3 button blank out of the dash. Route the boost control box harness from under the passenger foot well over to where the blank switches were. Continue running the diagnostic connectors up behind the dash to the hood area.

Remove (1) T-30 screw holding the plastic dash down. Route the harness underneath this to the diagnostic port. Connect one connector to the diagnostic port and the other connector into the holding device.

On the back side of that harness you will find the 90 Degree 16 pin connector and 2 pin.

This pigtail and connector will not be used. It will be zip tied with the rest later.

Install half the Velcro to the backside of the black box.

Connect the black box to the 16 pin connector. DO NOT OVER TIGHTEN.

Test fit the black box under the dash, clean an area off with cleaner. Install the other side of Velcro on the back side of this plastic. Install the black box on the Velcro. Red square is for the placement on the backside. This will keep it out of eyesight.

Route the terminal leads from the accessory harness up the same way.

Underneath the dash you will find accessory power terminals. Connect the red wire to positive and black to negative.

Connect one side of the 2 pin accessory power harness to the first harness (BCB) connector. Connect the other 2 pin accessory power connector to the boost control solenoid harness. This harness will connect to the 3-Port boost controller.

Remove a blank switch somewhere on the dash, you can put it up high or down low. We install ours next to the key. Remove the blank. Route the indicator light harness the same as the others. Install the indicator light into the socket, push into the dash.

Using supplied zip-ties, secure harness to factory harness from the front passenger wheel well back to battery location.

Located by the battery are (2) holes labeled relay. With the supplied push dart, install the relay from the intercooler/oil pump harness.

Install the 4-pin connector labeled fuel from the accessory harness to the mating 4-pin connector on the intercooler/oil pump relay harness. There will be a 4-pin connector that will NOT be used.

Connect the 4-pin indicator light harness to the relay harness. Both labeled light.

Route the intercooler harness on top of the metal driveshaft bracket, through the firewall and over to the intercooler location. There is an extension harness if needed. Depending on your routing, you may not need it.

Locate the oil pump and boost solenoid harnesses, route them behind the battery, through the firewall out into the engine bay.

The oil pump harness will connect to the oil pump on right side frame rail. The boost controller harness will route across CVT fresh air duct to drivers side of vehicle. Remove (2) T-20 screws off the air duct and run the harness behind.

Install the relay harness ring terminals to the battery.