[mechanical_freak]

Unknown

So I hate to be that guy, and being new here and all but I recently got a bow-3 kit to put on my 2010 v50 thinking to myself this was a rather splendid idea as it would keep the light off and id have HID's in my vehicle but after reading everyone talking about the DRL disable I got curious as to why they were disabling them and got to searching and now I'm worried if I take my vehicle to the dealer and get the software update to disable the DRL's will I be in the clear or will I still be on borrowed time till the PWM takes out both my HID's and my wipers?

Thanks for your input.

 

[mechanical_freak]

So I decided to do some testing of my own, now ive only owned this vehicle for a few weeks and know that the previous owner serviced it at a dealer (have yet to get the service records from them), but my DRL are still in operation knowing that the CEM PWM the voltage to be a constant 13v at the bulb I figured my voltmeter would also see 13v and I could see if the CEM also PWM the voltage when the switch is in the "Manual" On postion (last position on switch). I found something rather odd I was getting full system voltage at the lights in both DRL and Manual on position does that seem odd to anyone else?

 

[mechanical_freak]

I have a fluke 88 V update rate is something like 245 milliseconds, and yes the vehicle was running and the meter was fluctuating around 14 v

 

[mechanical_freak]

Didn't actually think to check that seeing as it wasn't my main concern. Ill see if I can't hook up the scope tomorrow during lunch and get a readable signal, I'm curious to see if the PWM is still there with the switch in the on position.

 

[mechanical_freak]

Well luckily the harness that came with my HID kit runs from the OEM connector to the ballast but is the same connector as for the bulb so it's basically a bulb connector extension so testing is a breeze. I would like to propose a question, if the DRL disable does stop the PWM how is it doing so with a software update is the just running 100% duty cycle and always commanding on? Couldn't that potential overload the transistors? Just a theory...