Hello i found a green and white connectors in my My07 legacy 3.0 under my steeringwheel.

Is the green connector supposed to be connected or not?

The green os connected and the white is not.

Starlite,

 

One has to assume that "under the steering wheel" means up under the lower dash where the steering column emerges.

 

While I can't tell you specifically what the one connector is supposed to be connected to,I can tell you that it most likely is not going to be an issue. It really comes down to "do you have any dash or steering wheel mounted options that aren't working"?

 

If everything is working as it should, the connector is most likely not connected to anything, because its for an option that you don't have installed on your car. Car manufacturers frequently have just one wiring harness made up for any particular model, that contains all of the connectors for all options. But in base models, and mid level models, some of the connectors lead nowhere because the heated steering wheel option, etc. is not sold on that particular model, so the connector remains empty.

 

I suggest just crawling under the dash, and if you can't find the mate connector (it'll be the same colour of wire and will fit the connector perfectly) then just tape or zip tie it up out of the way.

 

Over the years I've installed power seats in cars that didn't come from the factory with them. The wiring harnesses for the power seats were hidden under the carpet, and when I located power seats from a wreck, I simply plugged the power seat connectors together and had the seat option work perfectly.

there are black(?) and green test or programming connectors, not sure on the white. The green should be disconnected. It will cycle evap, fans, and other solenoids/relays as a sort of diagnostic.

 

hoping you get better info from one of the gurus.

"If it ain't broke, don't fix it"

sorry but no - those green connectors should NOT be connected for normal daily operation. They are test connectors used to test relays and such.

and unless I miss my guess, the white ones are also test connectors - on older models they were black.

Neither should be connected for typical daily driving.

 

They don't typically cause problems if plugged in, but they really should not be left plugged in.

Those are test mode/flash mode connectors. If you connect them the ECU will go into diagnostic mode and start cycling relays for diagnostics, etc. 

 

GD

And that diagnostic mode can be quite useful!

And that diagnostic mode can be quite useful!

 

Use them frequently to check fan and fuel pump relays, etc. VERY useful. All manufacturers should include this feature. If more people were somewhat electrically savvy they would be able to diagnose on the side of the road. And they would know better than the try to fix it when it's not broken. Can't tell you how many times I've seen people plug those in just because "it doesn't look right disconnected". Keep your grubby little hands off the inner workings of your vehicle if you don't know what you are doing!

 

GD

Edited May 30, 20187 yr by GeneralDisorder