Lcd backlight on 2004 range rover repair - 2004 Land Rover Range Rover

I answered your other same question

If you have to add coolant,it had to go somewhere
as no fluids are consumed

So you have serious problems like a bad coolant
leak or bad head gasket if no visible leak can be found

You need a repair shop

No one can guess & help you from the internet

Repairs have to be made then know how to get out
of fail safe if that applies

That job will required factory reference material to
understand the problem & diagnose it

Please watch the attached YouTube video of the whole job.

Repair your vehicle right away. Just click on the link I attach
Range Rover Discovery II 1999 2004 Service repair manual

Try this:


Switch ignition OFF


Press and Hold left instrument panel reset button, switch ignition ON to position 1


Keep reset button pressed for approximately 5 seconds until the LCD displays "RESET SIA".


The distance to service and the service type " Inspection" will be displayed.


To reset distance the left hand button should be pressed before the 'RESET' message has

flashed 5 times. The LCD will display 'END SIA'. Switch ignition off


The timing to do this is must be about 5 seconds, if this is not working you can try again.

Try this:

Switch ignition OFF

Press and Hold left instrument panel reset button, switch ignition ON to position 1

Keep reset button pressed for approximately 5 seconds until the LCD displays "RESET SIA".

The distance to service and the service type " Inspection" will be displayed.

To reset distance the left hand button should be pressed before the 'RESET' message has

flashed 5 times. The LCD will display 'END SIA'. Switch ignition off

The timing to do this is must be about 5 seconds, if this is not working you can try again.

I have a Range Rover 2005 and it worked for me.

The Range Rover actually has 4 oxygen sensors - 2 in front of the Cat and 2 behind the cat - try to check / replace the other 2

check you bluetooth module in left rear cargo area access panel.check connectors for bluish corrosion,also look for signs of dried water spots,possible water ingress onto entertainment modules

If the radio is of the newer LCD variety and most of them are of this type the reason would be because behind the display are usually 3 small lamps /light bulbs used to backlight the display and they are probably all burnt out and need to be replaced. This job cannot be done by most people and best repaired by an electronic technician with a soldering tool.

Rich Lilja

There is a problem inside the radio and a specialist needs to strip and repair if possible.Check with your dealer if they know someone to do this.

Check the connections on the radio plugs behind and make sure the plugs are in properly.Put the radio on while it is out and move the wires around to see if there is a fault in the wires there , maybe they have rubbed through there and are causing a short circuit.