i replaced all my interior lights with leds and two or three days later i went to start my car (2000 S-Type V8 4.O) and battery dead jump it and drove it to make sure it was charged parked it and noticed at night the lights in the car were lit very dim but still drawing power.. anybody changed to leds and/or had the same problem or any solutions to my problem?

 

Cam, looking at the diagrams, I would suspect that you have an issue with the GEM module failing. If you can imagine, the interior lights are powered via fuses, this power is then run through the bulbs to a common ground wire. This ground wire is then run to the GEM to do the switching to turn the lights on and off. The only thing that is coming to mind at the moment is that installing the LEDs has lead to an overcurrent condition that goes through the GEM module. This has resulted in the failure of the transistor that is the switch for the interior lights. The transistor is bleeding through, causing your low level lighting.

The only other thing that it could possibly be is that when you replaced the bulbs, you have created a low resistance to ground at one of the switches and this is allowing power to back feed through the common ground through a switch. You can prove this by unplugging the GEM module and seeing if the lights remain dimly lit. If they do, then you have a switch that is providing the return path.

 

where is the GEM located ??

 

found it driver side below hood release but it has three wire clips going to it and according it jtis cd i got it only says it controls wipers and security system cant be right it has to control more that....so if you have any more details on what to do?? would appreciate it

 

Look more. The elec diagrams show far more than you've seen.

 

Cam, yes, the GEM module controls tons of stuff.

 

looks like you've got some advice to help you with your LED question. good luck.

 

Did you manage to solve the problem and if yes, what was the cause?