By following the instructions that came in the box of the new trailer brake controller.
HOW DO I RESET THE PAD WARNING LIGHT ON MY RANGE ROVER
its the brake switch censer under the brake peddle itself.
Air over Electric brake controler like Warner P# 1300-80. but be ready to open your wallet. They range from $350-$590 US (2012).
Take it to HiFlex Engineering S Yorks 01909 568681
Put the key in the ignition in front of hand brake next to the gear shifter.
remove old bulb, insert new bulb.
THIS VEHICLE THROWS A CODE WHEN ELECTRONIC WEAR SENSOR HITS ROTOR, CAUSING MESSAGE "CHECK BRAKE LINING", AND BRAKE LIGHT TO COME ON. THIS CODE MUST BE CLEARED IN VEHICLES COMPUTER BY OBD II OR EQUIV.
To the right of the heat/air levers
Brake pads need to be replaced
Hayes Brake Controller Company is a manufacture that has been designing and building brake controllers for 60 years now. They are easy to install and have a reliable line of electronic trailer brake controllers available.
In the engine compartment, above and behind the brake pump (on the right hand side of a right hand drive Range Rover)... it's located in the fuse box to the rear of the battery.