WORDO30

To start off I have a 02 IS300 completely stock with no mods. while going down the highway with the headlights in the auto position and the headlights currently on along with fog lights and radio i turn on the turn signal to switch lanes and the radio shuts off motor shuts off momentarily and guages go to the relaxed position when they are off and all the warning lights in the combo meter are off as well. the most common time that this happens is when the headlights are on and the blinker is going. have not had it happen yet when the headlights are in the off position. also when the blinker is blinking you can see the combo meter dim in sequence with the blinker. I am a toyota tech at a dealership and am going to look into wireing diagrams to see if theres some common wires and see if i have power back feeding the combo meter or other things. initial thought is ground issue or power back feeding a ecu. will let you know if i figure anything out just wondering if people have had this issue or not.

Thanks
Kent

jadu

iTrader: (42)

first off, welcome. As you may already know as tech, check the stupid simple stuff first like the battery connectors, battery and alternator. hope u find the issue and bump so someone else can chime in.