STNC Posted January 8, 2009 Report Share Posted January 8, 2009 Hi Everyone, I have an AVIC-F90BT installed in a 2007 Scion tC. I put it in around a week ago. Recently, When the headlights have been off, after about 10 or 15 minutes, the screen starts to flicker to night mode, and then back to day mode, and then back again, and it just keeps flickering. When I turn my running lights on it goes to night mode like it should, and then it stops flickering. Does anyone know what could be causing this? Could this be an overheating warning? Thanks! Michael Quote Link to post Share on other sites
STNC Posted January 18, 2009 Author Report Share Posted January 18, 2009 bump Quote Link to post Share on other sites
joegr Posted January 18, 2009 Report Share Posted January 18, 2009 You probably need to put a small resistor between the ill lead and ground. I would try about 1000 ohms, 1/4W and see if that takes care of it. Quote Link to post Share on other sites
STNC Posted January 18, 2009 Author Report Share Posted January 18, 2009 kk, so its an issue with how much current is getting through? And I just put the resistor between the f90 ill wire and the harness ill wire? And one like this: http://cgi.ebay.com/5-1-4W-1000-OHM-1-OHMITE-RESISTOR-R5J1K0-NOS_W0QQitemZ370069680115QQcmdZViewItem or http://cgi.ebay.com/50pcs-1k-Ohm-Resistors-1-4W-5-1000-ohm-1-K-carbon_W0QQitemZ150286612634QQcmdZViewItem Quote Link to post Share on other sites
joegr Posted January 18, 2009 Report Share Posted January 18, 2009 Either of those resistors should work fine. You may also be able to get one from Radio Shack for less. No, it is not to limit the current. It is to cause some current to flow to ground so that the voltage on the ill wire does not float too high. Do not install it in line. Tie one end of the resistor into the connection where the ill wire from the car meets the ill wire from the AVIC. Both wires will still be connected together and to one leg of the resistor. Connect the other leg of the resistor to a good ground, such as the black wire to the AVIC. Quote Link to post Share on other sites
STNC Posted January 18, 2009 Author Report Share Posted January 18, 2009 so kinda like a Y the top of the y are the two ill and the bottom is ground Quote Link to post Share on other sites
joegr Posted January 18, 2009 Report Share Posted January 18, 2009 Yes. Quote Link to post Share on other sites
STNC Posted January 18, 2009 Author Report Share Posted January 18, 2009 kk, and this should fix this? is this a common problem? Quote Link to post Share on other sites
STNC Posted January 24, 2009 Author Report Share Posted January 24, 2009 and which side of the resistor should I connect what too? Quote Link to post Share on other sites
joegr Posted January 24, 2009 Report Share Posted January 24, 2009 Resistors are not directional devices. Pick a side, it doesn't matter. Quote Link to post Share on other sites
STNC Posted January 25, 2009 Author Report Share Posted January 25, 2009 kk Quote Link to post Share on other sites
STNC Posted February 14, 2009 Author Report Share Posted February 14, 2009 Before I go ahead and do this soon, I had an idea on what else could be causing this. I have a system that draws a large amount of power, often it dims my lights and such, could this be the issue? If I were just to get a bigger battery would that fix this? Quote Link to post Share on other sites
carlos_fb Posted February 14, 2009 Report Share Posted February 14, 2009 Sounds like you might need a capacitor. Quote Link to post Share on other sites
STNC Posted February 14, 2009 Author Report Share Posted February 14, 2009 I already have the big 3, as I've heard capacitors are just bandaids for a system. Quote Link to post Share on other sites
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