Wires Inside the Yaris & What They Do

[sleey0]

I just want to take a minute to say a big, fat THANK YOU to ctscott for his help on these boards.

I have used a lot of your info and I believe you deserve at least this much appreciation!

Thanks, brother!

[nmd55]

it tried tapping the light blue wire at the headlight switch, but now my headlight wont turn off and the lights on my power window switches are on all the time?

did i just do a bad job tapping this? or can i not tap the light blue wire for my power window switches?

thanks,
nick

[CTScott]

Originally Posted by nmd55

it tried tapping the light blue wire at the headlight switch, but now my headlight wont turn off and the lights on my power window switches are on all the time?

Tried tapping that wire for what purpose?

[nmd55]

the power window switches i got light up at night when the headlights are on

[CTScott]

Originally Posted by nmd55

the power window switches i got light up at night when the headlights are on

OK. First off there are two blue wires on the headlight stalk. The "light blue" is the darker of the two. The other color is called "sky blue".

Secondly, you don't want to use a high current circuit, like the headlight switch, to drive interior lighting. You want to use the illumination circuit, which you can access either at the shift lever or at the dimmer rheostat.

At the shift lever, there is a two pin connector with a white and a green wire. Green is +12, white is ground.

At the dimmer rheostat, there is a 10 pin connector. The sky blue wire is +12 and the light green is the headlight switched ground.

[nmd55]

^^ awesome thanks so much for the info!!!

[nmd55]

So i tried the sky-blue wire at the dimmer and it works. However its dimming the power window switches in the opposite direction as the dash. So when the dash is fully lit, the power window switches are not lit at all and vice-versa.

I checked the connection with my multi-meter and it is indeed +12V so im not sure whats wrong.

My car is MT so there is no shift lever, is there another headlight source i can tap?

Thanks for the help!

[CTScott]

Originally Posted by nmd55

So i tried the sky-blue wire at the dimmer and it works. However its dimming the power window switches in the opposite direction at the dash. So when the dash is fully lit, the power window switches are not lit at all and vice-versa.

I checked the connection with my multi-meter and it is indeed +12V so im not sure whats wrong.

Thanks for the help!

That's correct. Is the light wiring on your switch separate from the switch controls, or is it integrated, where it shares the same ground? It sounds like the latter, as the dimmer brings the ground up, rather than the +12 down to do the dimming. If that's the case, using green as your + and chassis ground as your ground should correct the reversed behavior.

[nmd55]

as it turns out i was tapping the LG wire the whole time thats why it was dimming in the opposite direction. However the SB wire is an ignition switched 12V, so tapping that doesnt work either because the switches are on all the time with the SB wire.

I think i am going to have to find another source to tap.

[CTScott]

Originally Posted by nmd55

as it turns out i was tapping the LG wire the whole time thats why it was dimming in the opposite direction. However the SB wire is an ignition switched 12V, so tapping that doesnt work either because the switches are on all the time with the SB wire.

I think i am going to have to find another source to tap.

I just realized that I gave you the wrong wire for the +. Use the brown on the dimmer rheostat, not the blue.

[MudBug]

I put an aftermarket stereo in my 07 hatch but I couldn't find the dimmer wire.

The stereo has this feature.

This blue light is almost blinding at night.

Is there a dimmer wire in the stereo bundle?

[macky]

any one who knows where can i find main body ECU of yaris 2006 because ihave bypass module dball data base tranponder i need to connnect (stsw output to stsw+ pi4 of ECU main body , but idont no where? pls help any diagram regarding stsw wire yelow no 8 frm. dball http://www.xpresskit.com/VehicleComp...px?p=null&year to see chart of my problem,

[CTScott]

The main body ECU is actually the white box under the dash with the fuse panel mounted to the bottom of it.

[macky]

thnks i check it up later

[CTScott]

The red one that's hidden on the end of the second row is definitely ignition switched +12 volts. Make sure you have a good ground that you are referencing it to, or use the white wire with the black stripe on that connector as your ground.

[cgarcia1821]

i want to install led lights in the interior, but i want them to turn on when i turn on the headlights...any help with where i can locate the correct wires for this? a picture would help :)

[CTScott]

Originally Posted by cgarcia1821

i want to install led lights in the interior, but i want them to turn on when i turn on the headlights...any help with where i can locate the correct wires for this? a picture would help :)

On the headlight stalk connector (remove the bottom steering column cover to get to it), Pin #13 is the switched wire for the taillights (which turns on with with both the high and low beams).

If the car has daytime running lights (or is 2009 or newer), then pin 13 is a ground, switched by the headlight switch (so, you would use pin 13 as your LED ground and would connect the +12 wire for the LEDs to a 12 volt source).

If the car is 2008 or older and does not have DRLs, then Pin #13 is not a switched ground, but instead is a +12V feed which is switched at Pin 10 (the wire to the left of the Pink one) (which will be green instead of white with a black strip). So, on this vintage, you would connect the + wire for the LEDs to the green wire in pin 10 and the - wire of the LEDs to a chassis ground.

[fase4]

Originally Posted by CTScott

On the headlight stalk connector (remove the bottom steering column cover to get to it), Pin #13 is the switched wire for the taillights (which turns on with with both the high and low beams).

If the car has daytime running lights (or is 2009 or newer), then pin 13 is a ground, switched by the headlight switch (so, you would use pin 13 as your LED ground and would connect the +12 wire for the LEDs to a 12 volt source).

If the car is 2008 or older and does not have DRLs, then Pin #13 is not a switched ground, but instead is a +12V feed which is switched at Pin 10 (the wire to the left of the Pink one) (which will be green instead of white with a black strip). So, on this vintage, you would connect the + wire for the LEDs to the green wire in pin 10 and the - wire of the LEDs to a chassis ground.

hi! If I want to turn something on with the flash or high beams od the headlight, were I had to connect the + and - wires of my 12v circuit? I wanna do this because I want to open my garage goor with the opener activated when I flash my headlights.

Maybe I have to tap de + with the Pin 9 and the - at the Pin 11?