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ETACS confusion

strokin4dr

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Aug 30, 2005
Messages
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Location
Savannah, GA
I am having an issue with my passenger front window, which has me looking at wiring diagrams lately and it has led to some confusion and conflicting info on the board. I have read through a few old threads and still can't find the answer I'm looking for.

I have read that these cars are ETACS equipped, but I can't seem to confirm it. The "small silver box" above the fuse box that some have said is the ETACs control unit is actually the cruise control unit.


Where is the ETACS control unit located???

Here is the box that has been said to be the ETACS box. With this removed from the vehicle everything (windows, locks, lights, wipers, etc.) still work fine but cruise is dead.

 

prove_it

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Jul 3, 2008
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Sioux Falls, SD
ETACS: Electronic Theft Alarm Contol System. Yes we have it. It's the brains behind the green security light that comes on when locking the door.

The box is above the clutch pedal, it's a pita to see and get, but it will say etacs on it. What issue are you having?
 

strokin4dr

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Aug 30, 2005
Messages
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Location
Savannah, GA
This is from mitsubishi's website, ETACS: Electronic Total Automobile Control System. In the wiring diagrams for a '91 galant, It shows the ETACS box being tied into the power window system. So that is where I am confused.

My issue is my passenger front window is non-operational. I can get it to work by jumping a ground so I know it is not the switches (I've tried 3 known good ones at the master switch and the passenger switch) or the window motor.
When testing the passenger switch, I am not getting a ground signal go the RED/BLUE wire. If I backprobe and jump this wire to the BLACK/BLUE wire, the window works perfectly fine, BUT only from the passenger side switch. If this fixed the issue and allowed the master switch to work too, I'd be fine with this fix, but this isn't going to cut it.

Also, this window worked fine when I bought the car and randomly stopped working after a couple months from what I remember. (mostly driven on the weekends and don't use the windows, other than the driver's side, very often.
-Ryan
 

prove_it

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Sioux Falls, SD
Any aftermarket remote start or door locks? Otherwise nothing tapped into the wiring?
 
Last edited:

iceman69510

Turn Right Racing
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Mar 5, 2001
Messages
10,968
Location
Michigan
Ryan,

The ETACS is attached to the junction block (also holds the fuses) on the LH side under the dash. I think it is a light blue in color if I remember correctly.

Sounds like you may just have a broken wire somewhere.
 

SouthCaliVR4

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Joined
Jul 31, 2010
Messages
984
Location
North county San Diego
If you look at the "disabling alarm" tech thread I had put a couple o pics in there with where the etacs is mounted in the car but... if your windows are powering up your problem does not lay there. it only provides power to the windows it does not control individual window function.

It sounds like you have a master switch issue or perhaps a wiring problem, likely broken in the door jamb.
 

strokin4dr

Well-known member
Joined
Aug 30, 2005
Messages
2,770
Location
Savannah, GA
I searched and couldn't find your post that you're referring to. Post a link.
Anyway, I am assuming you are talking about the black box directly above the silver cruise control box I posted a pic of. I'll check it out when I get home.
 
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