Thread: 1999 D2 Warning Lights ???

Three amigos is ABS,TC and HDC lights combination. Common fault is shuttle valve failure. In sticky threads you can find full description of this failure and liquidation of it.
And about CDL light - D2 98-02 have no CDL, but it can be installed. Ask previous owner about it.

I asked the owner of the car and he claims the CDL light has been on since he had the front tail shaft replaced by his mechanic he is not really into working on cars or understanding what caused the problem he just takes it to the mechanic to fix.

Sorry, there are no thread about amigos in stickys. Here's link
ABS Mod - LAND ROVER CLUB V.I.

As above for the 3 amigo lights. The 1999 Disco transfer case will have the CDL internals but no actuator cable mechanism. (Mid 2001 through 2002 models don't have the internals)
Sounds as though the CDL has been engaged - to disengage this you will need to get under the car and find the CDL spiggot on the top of the front output casing of the transfer case and turn it with a 10mm spanner to disengage.

The photo below shows the spiggot and a factory CDL actuator as fitted to 2003 and 2004 Discovery models.

Originally Posted by gazk

... The 1999 Disco transfer case will have the CDL internals but no actuator cable mechanism. (Mid 2001 through 2002 models don't have the internals)
...

Does transfer case have electrical switch which locks and turns on the light on the dash?

Originally Posted by Seryi

Does transfer case have electrical switch which locks and turns on the light on the dash?

More or less.
If you've got the Diff lock light on then you've got the internals.
If it's been on since a prop shaft repair job they probably locked the diff to keep the vehicle mobile.
As said, climb underneath while the car is cool so not to burn yourself, reach up on top of the transfer case until you find the spigt. 10mm spanner and off it will go, but you might need to move it a metre or so for it to disengage.

Originally Posted by Seryi

Does transfer case have electrical switch which locks and turns on the light on the dash?

The switch can be seen on the right edge of the photo above. 1999-2001 transfer cases will have only that switch - 2003/2004 transfer cases have 2 switches - the additional one being beside the output flange.

Seems plausible, that CDL was activated when the prop shaft was removed to keep car mobile. But it is not good for the resourse of the transmission to run on asphalt roads with CDL activated...