Luggage light

[CTScott]

The grey wire should have constant +12 Volts on it and the orange wire gets grounded when the hatch is opened.

Does the door open light come on on the cluster when you open it?



Correction - The above is for a 2nd gen Yaris.

For your 2012:

The Blue wire gets power directly from the body ECU and the black wire gets switched to ground either by the hatch switch.

[geoded]

Originally Posted by CTScott

The grey wire should have constant +12 Volts on it and the orange wire gets grounded when the hatch is opened.

Does the door open light come on on the cluster when you open it?



Correction - The above is for a 2nd gen Yaris.

For your 2012:

The Blue wire gets power directly from the body ECU and the black wire gets switched to ground either by the hatch switch.

Is correct, I have 2 colors, black and blue. Black is ground, and the blue have zero volts. ECU problem?

[CTScott]

Originally Posted by geoded

Is correct, I have 2 colors, black and blue. Black is ground, and the blue have zero volts. ECU problem?

Jump the black to a chassis ground point and see if it comes on. The body ECU monitors the black wire and may want to see it grounded (by the switch) before it supplies power to the blue wire.