How to reset engine disability in 1996 Range Rover?

SOURCE: 1996 4.0 Range Rover won't unlock

This car is in super lock mode... when you press remote 2times to lock or when you lock with remote and try to unlock using key manually.

there is a 4 digit number to open the door, its like opening a safe, starting from the left(key in car door) it goes L/R/L/R. so if number code is 1234..... left 1, right 2, left 3, right 4.

or if this too troublesome you can ask landrover dealer to remove the KEYCODE.

happy trying.....
adrian/kk.

SOURCE: 2000 4.6 range rover suv

You require an unlock code/ security code from the dealer. This will consist of 4 numbers. You can then input this code into the door lock to clear imobiliser. You will have to do this every time until you have your remote replaced or repaired. There is a procedure for inputting the code. What the display through the window with the door closed. You need to turn key to unlock or lock (depends on model) until you see the display react to your input. Once this happens you are ready to input the code. If for example the code was 3241 and you have turned it 4 times to the unlock position (most likely) you would start by turning it 3 times to the unlock, 2 times to the lock, 4 times to the
unlock, 1 time to the lock, pause then unlock the car and start the engine. It sounds tricky but once you get the hang of it its not too bad. If when you start to input the code it starts locking and unlocking the central locking is is not accepting the code. The difficult bit is getting it to recognise you are inputting the code. The central locking will do nothing during the code entry. Best doing this when the light is fading as its easier to see the display in the dashboard. Thats it, all you've got to do now is find the code. Often on a card inside the owners service books if still around!!
Good Luck John

SOURCE: replaced battery on 1996 range rover and it has

Immobilizer system can be disarmed using 4 digit code from vehicle security card as detailed in owners handbook.

SOURCE: how i reset the service engine light on a 2004

There are hidden cheats (just like a video game)
this is cool try it out.
1. ignition off
2.Press and hold trip meter button(left black button) down and turn igniton kry to first position. Keep the button pressed about 5 seconds until the words Oil Service or Inspection reset appears on LCD display.
3. Release the button then press and hold till reset begins to flash
while the display is flashing let go then press again.
the display will read END SIA and your all done.

In practice you have to make the inputs quickly, do not delay as you will have to start over

SOURCE: 2004 Range rover Check Engine Light

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