tyzer

My vsc & trac off light came on when i hooked up an afrter market tach. I keep seeing this thing about a EFI fuse but don't know where it is located i looked in both fuse panels and see nothin marked EFI if anyone knows were this is ?

TerribleTed

Trak/vsc call out to fuse AM2 15 amp. This fuse is number 7 in the owners manual fuse box diagram on page 222 and is called out there as starter, srs airbag, Fuel injection etc. This fuse box is located in the engine compartment next to the battery. If it isn't blown you could simply remove and check every fuse in the car, there aren't that many between the under dash box and the eng compartment box, and are easily visually verified. Good luck

tyzer

ok i tried pulling those fuses but no change so i tried pulling them all one at a time and the lights still on. is there anybody out there ever had the same problem?

TerribleTed

Is it the trac off light?? If so press the track button and turn it back on. (remember the only stupid question is the one not asked). Beyond that I have no clue.

peteski

Did you try to unhook the freshly installed tach and see if the problem goes away? It is always wise to undo the last change and see if that fixes the problem.

tyzer

Yes i tried pushing the trac off button and the tach was removed the next day .I think when i was hookin up the tach i set it off . i wasn't sure wihich wire to hook it to so i hooked the pos and ground up and then took the green wire and touched it to the plug one spot at a time and noticed the light was on so i am not sure ?

TerribleTed

God I hate when queertrons get in something electrical. It is likely something really simple, knocked loose, relay burned, fuse burned, etc. Hope you find it

tyzer

How do I check if a relay is burnt out?

TerribleTed

That is a very good question? Beyond my capabilities without just swapping them with new ones:/ I would have to say a dealer trip might be in order If you can not find anything amiss.

peteski

If you're confused about the wiring, go to https://www.scionlife.com/forums/viewtopic.php?t=138456 and download the xB diagram. Then find the Traction Control section and veryfy that you correctly hooked up all your wires.

Slade

No. 12 fuse. Pull wait a minute and bam! Gone. 79k mi. On car. Drove home...still good. In fact, runs better! A GENIUS here suggested it...Cannot thank him enough. In fact I had to join just to thank him.Be well