Jump to content
SAU Community

Radio going off / restarting when playing with headlights

HCD Velcra

By HCD Velcra,
in Car Audio & Electrical

 Share

Recommended Posts

HCD Velcra Enthusiast

HCD Velcra

Posted
Posted

Guys, recently Ive noticed that my radio is turning off for some seconds and restarting when I play around with any of the lights, like head or fogs. Not every time but especially often when I hit the high beam for a couple of times like when you wanna greet somebody.

Do you got a clue what could be the cause of such things?

 

Thanks and regards from germany

GTSBoy Grand Master

GTSBoy

Posted
Posted

You likely have a bad earth somewhere. Or possibly the headlight switch or dip switch have dirty contacts.

I had this happen when an exhaust pyro gauge was dying. It pulled the power in the console area low enough to drop the stereo out (and then as it died completely I couldn't start the car). I wouldn't suggest you have the same problem I did, just demonstrating that power issues have been seen to cause the same thing you're seeing.

The headlights pull a lot of current. If that current can't get to earth (on the other side of the headlights) you might cause some weird voltage issue in the dash/console.

HCD Velcra Enthusiast

HCD Velcra

Posted
  • Author
Posted

Hey mate

Ye even though Im not very skilled in electrical stuff, thats the first thought I had. I have to edit my post, its not only the car thats going down its the ignition. I can tell by the antenna thats going down as you know well too, and by the defi gauges that start the launching animation.

 

So how could I attack this problem now?

TurboTapin Proficient

TurboTapin

Posted
Posted

I'd start by checking if the common grounds between your lights and radio are clean and tight. See my link below and report back if you don't find anything. Cheers. 

https://www.dropbox.com/sh/jl8xtprmam0iiuy/AAAQn3fxW_-jiQPGOXX6bOyFa?preview=R33+Wiring+Diagram.pdf

  • 2 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      R32 GTST - 600KW+ RB28/CD009 Build

      By GTSBoy · Posted

      Unless things that you want to do include reference to time. Simple Boolean logic is only good for digital inputs or analogues that have been thresholded into digitals. But unless you also have a timer function available (which would more ideally be located inside the program, rather than being forced to implement a timer outside the ECU and bring it in as a seperate digital for every time delay you want to implement), then you can't do some of the things that you might want to do. My PLC ladder logics are obviously littered with program blocks, because that's easier than building it all in ladder gates, but the most frequent of those program blocks is a simple timer, because you actually can't otherwise do that in ladder at all.
    • GTSBoy
      Low oil pressure after WOT

      By GTSBoy · Posted

      Log voltage. I'm suspecting the alternator. Or even maybe a bad earth somewhere. ie, seeing as it is rev dependent, I am thinking it is alternator dependent.
    • Duncan
      Low oil pressure after WOT

      By Duncan · Posted

      Yeah so N1 and any other larger than factory pump are pretty famous for pumping the sump dry...obviously we don't often get to spend 20 or 30 seconds at high rpm/full noise on the road so I'd still be suspicious that is what is happening here.
    • MBS206
      Low oil pressure after WOT

      By MBS206 · Posted

      You are also getting pressure dips on gear shifts. They're just not dipping as far, but they're dipping quite below the amount of oil pressure you should be seeing, for how much RPM drops.   It quite little could be the oil pressure relief valve is starting to stick open a little/is slow to close.
    • MBS206
      Low oil pressure after WOT

      By MBS206 · Posted

      Can you log battery voltage, and TPS, and put all four of those into a single image (even as split graphs)?   The oil pressure drops aren't following RPM as such. I'm intrigued if you may have a ground loop between different sensors. With the engine not running, log your sensors and for example cycle the throttle pedal. See if any sensor values flutter or move about. This won't be a perfect test either as the ECU won't be cycling all of its actuators like it would be while running. What EMTRON do you have? Do you have a link to the wiring guide for that ECU?
×
×
  • Create New...