Radio Lights Are Not Working

[IOM IS200]

Hi Guys

Posting my first post as I am new here. I refitted the original radio to my 2003 IS200 to discover that the lights do not come on. The only ones that do work are on the LCD screen. Can any body help please?

Thanks in advance

[Geoffers]

I assume there has been an aftermarket system in there? Some of the adapter wiring kits didn't take into account the lighting from the headlights so that had to be done manually.

So... maybe someone with an IS200/300 can confirm - if the radio is on but not the headlights, does the display still light up without anything else? If it does then it looks like you'll need to find your lighting feed and re-connect it.

Were there any loose wires or anything taped up?

[sjrainsford]

As above. The stereo only lights up when the headlights are on apart from the LCD screen.

If it still isn't then I'd be inclined to have a look at the wiring in case it has been modified.

[IOM IS200]

There was an aftermarket radio in place. The display does light up when nothing else is on. What would that cable look like?

Thanks for your help

[Geoffers]

I'm not 100% sure but from memory it is white/green for the negative switched side and solid green for the positive feed.

Think its pins 2+3 on the large connector in the back of the radio unit. Meter them to see if there's 12v across them when the lights are on.

If not there's a break somewhere. If you can't find it you could take it from the cig lighter lamp which is the closest I think. (same colours)

[IOM IS200]

Thanks for that I will check and report back.

[IOM IS200]

I could not find a solid green wire. What I noticed though is that there are no cables going to pins 4,6,10,14,17. Does this make any difference? Also you suggest connecting power from the lighter. Which pin nos should I connect it to?

Thanks again

[Geoffers]

There are different wiring variations depending on if you have an amp or not, the model, etc.

What model is your 200?

[IOM IS200]

It is 2003 and it has an amp.

Thanks

[IOM IS200]

Any ideas guys? I took it off again but no luck.

Many thanks