Thread: Crap reversing lights on L322

I added a seperate led light on the rear frame with a seperate switch inside, you can use it when nesessary, when reversing or as a worklight if you ate hitching a trailer at night.

Originally Posted by Davie

I added a seperate led light on the rear frame with a seperate switch inside, you can use it when nesessary, when reversing or as a worklight if you ate hitching a trailer at night.

Thanks Davie. I like the idea of a separate switch. How did you put in a separate switch ? I assume from another circuit at the rear with constant power. I was looking at using the reversing circuit on the White plug for power. Will that confuse the LCM etc if I have a trailer hooked up to the black plug? Finally where did you mount the light.

Just a note, if you do wire an LED light into the original circuit there will be a flicker ever now and again (Freaks people out behind me) thats just the computer checking that the bulbs havent blown but due to the led having little resistance she lights up.
If you want to get fancy you can chuck a ballast resistor in there....but I'm not fancy

Originally Posted by chaybra

Just a note, if you do wire an LED light into the original circuit there will be a flicker ever now and again (Freaks people out behind me) thats just the computer checking that the bulbs havent blown but due to the led having little resistance she lights up.
If you want to get fancy you can chuck a ballast resistor in there....but I'm not fancy

you can turn the testing off in the LCM. Turn off cold test for the reverse light - simples!

Adding a resistor will not stop the flicker, just inform the LCM that there is an extra load connected, you need to shunt the test pulse back without it getting to the LED to stop the flicker - easiest way is to use a relay to run the new LED

Originally Posted by harlie

you can turn the testing off in the LCM. Turn off cold test for the reverse light - simples! Adding a resistor will not stop the flicker, just inform the LCM that there is an extra load connected, you need to shunt the test pulse back without it getting to the LED to stop the flicker - easiest way is to use a relay to run the new LED

Ta, I assume I need an IID tool to tinker with the LCM? I'm getting a service thurs may get Greg Tunstall to do it. I'm looking at putting it in here, by riveting stainless or alloy plate to the to bar assembly to mount the light.
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No mate, IID won't do it...

Faultmate or, I have navcoder which is a BMW system especially for the iBus ECUs.

Your car still has the iBus but I'm not sure what is on it, they migrated systems off the iBus gradually over several years between 2006 and 2008/9. One way to find out....

There's a thread on FFRR where LED panels are fitted inside the existing lights.

Thanks Harlie. I'll fit the light and will have a look. I still have to do the trailer module and break controller.

Thanks Graeme. I read a thread on FFRR a while ago that involved replacing the existing light socket. It improved the light output but was hotter.