What problems will a failing ECM produce

 

what problems are you encountering

 

As you appear so much more knowledgable in this subject. My door locks, turn signals inside headlights, and interior lights stopped functioning properly. I do not have no warning signs or check engine lighs on the dashboard. and i recently checked all of the fuses all working. Can this be My ECM?

 

I mean ECU its a 04 tl with 151000 mi

 

how old is your battery?

 

two months old

 

inb4dalock

 

The MICU is what controls all those functions. This unit is integrated into the fuse box on drivers side foot well.

If in fact there is a problem there is a way to gather the b-codes via your MID.

Here is a picture of the drivers fuse box.


You will notice to the left side, above the blue relay, I have placed a red square.

There are two contacts in there.
You will need to get some butt connectors and attach one on each end of the wire. Youre basically making a jumper wire.

Connect each butt connector to those contacts i have squared off.
Start your car and take a look at your MID.
You should see a series of codes pop up on the display. BXXXX,
To cycle between them press the select/reset button.

Write down each code you see and post here.
turn off car and unplug the "jumper wire" from fuse panel.