Disco 4 and van lights

What they don't work at all ?, there can be an issue with LEDs on the trailer, but other lights work, just not dash indicator

There is a plug LH rear panel (where tow adaptor is/was ) , but dealer should have looked at that., they do need soft ware upgrade for tow kit from new , but dealer would know that

Have they ever worked ?

Cheers Ken

With the new Ford Ranger they require an adapter for trailers that are fitted with LED lights as the LED do not draw enough current for the vehicles system to recognise.

As the previous comment mentioned LED's this may well be a similar problem with the Disc, so you may need to contact Landrover for advice.

Brian

The D4 is wired to EU standard with separate tail light feeds for left and right side.
They use two separate wires for the side lights (left and right, Blue and Brown I think). The brown goes to the pin (5) we use for the electronic brake controller. If the brown is not disconnected when your electronic brake controller is installed, and remains connected the right tail light circuit will try to operate the electronic brakes on the BT when lights come on. Will probably draw too much current and blow fuse, so lights wont work.

D4 brake controller

The landrover forum discusses correct installation of brake controller in thread above.
Should be no issue once elecronic brake controller is installed correctly and right tail light circuit removed. Might need to check fuses after is is removed

Regards
Gerry

If you follow the wireing instructions as set out on the AULRO site you will not have any problems. As well as cutting the brown wire for the brake controller you need to run your earth wire bact to one of the two earth posts on the mud guard inner just in front of the battery box. Also fit a 3 amp diode into the red wire just before it exits from the LHR to the outside, remember to make sure the kathode end (the side with the stripe on it) faces the Electric Trailer Brake unit (front of the vehicle). The installation of the diode will prevent any feed back to the Central Junction Box in the event of the controller failing.

The AULRO site provides a wealth of infromation for owners of all models of Land Rover vehicles.

Hi Fellow BOGGERS,
thanks for your various views on my Disco 4 issue - it seems to be a well known and common issue - as the vehicle is under warranty and is leased, methinks the local Landrover dealer has some explaining and fixing to do.

cheers

Searenity