HOW TO: Install an EVIC or OTIS (overhead computer)

[tulsa]

I believe you will need a 2002 or 2003 evic to get the temperature display to work when you get the temp sensor installed. If I recall correctly the bus address of the temperature readout changed in 2004.

 

[Corwyyn]

I posted this in another thread discussing the differences in the units.

Marlon got me to thinking, so I just checked the FSMs for both '03 and '05. The '03 does take the temp signal from the BCM, and in the '05 it comes from the PCM (powertrain) module. I would think the engine control systems would have a temp sensor anyway, maybe they just decided to do away with the stand alone unit that was in the earlier models. Anyway, that's what I learned today

 

[duda]

I posted this in another thread discussing the differences in the units.

Thank You tulsa and Corvyyn.
But EVIC>2004 can be compatible with older addresses.
Besides, I`m not sure is my the newer one.
After self test it displays: EVIC=13, HL=NO
Is it older or newer than 2004?
Is it recognizeable?

 

[BjBnet]

Just ordered on OTIS off ebay, can't wait to put it in!!!
I'm gonna do like most suggested, upgrade later when I can find the right evic.

 

[tooslow]

Well I finally did it I won a 2004 EVIC from Ebay they kindly added the fitting behind the unit and shipped to the Middle East, I made a a wiring loom and fitted the loom before the unit arrived.

the unit came and I kept putting off fitting it, the thought of cutting the roof trim,

Anyhow, I had to got to the Philippines for 6 weeks on Business and the little wify complained the computor wasn't fitted, so I plucked up the courage and fitted it.

To my supprise it worked well apart from the temp reading was -9 degrees C it is currentlu 42 degrees C Oh well I thought, but after five minutes later it started to read correctly, (later I read it only takes a temp sample every five minutes). so now It is all working correctly,

Ok now where are my roof lights.

Martin

 

[xlr8]

does anyone know if this can be done for a 2007

I would like to know if anyone has done this on a 2007 liberty sport or am i out of luck for adding this neat feature to my liberty

 

[Marlon_JB2]

I would like to know if anyone has done this on a 2007 liberty sport or am i out of luck for adding this neat feature to my liberty

It can be done. Don't lose hope.

 

[Atrus]

I would like to know if anyone has done this on a 2007 liberty sport or am i out of luck for adding this neat feature to my liberty

I added a 2003 KJ EVIC to my 2007 with no issue. The only non-functioning component is the temp readout. I don't have TPMS to deal with, but the compass, fuel range, economy, programming features, etc all work flawlessly.

 

[LibertyFever]

I added a 2003 KJ EVIC to my 2007 with no issue. The only non-functioning component is the temp readout. I don't have TPMS to deal with, but the compass, fuel range, economy, programming features, etc all work flawlessly.

This week I picked up a used OTIS from an 03 Liberty. I'm assuming I can get it to function in my 04 Liberty but from reading the previous posts it sounds like I won't be able to get the ambient temperature sensor functioning. Am I correct?

Also where the heck under the dash does the wiring harness plug in? Beneayth the steering column maybe?

 

[LibertyFever]

Oh, I've just realized. The EVIC/OTIS wiring harness doesn't plug in under the dash does it? I have to splice it into the OBD port wiring?

 

[Corwyyn]

Oh, I've just realized. The EVIC/OTIS wiring harness doesn't plug in under the dash does it? I have to splice it into the OBD port wiring?

Yes that is correct. IIRC there are three wires you'll have to splice into, and the forth one is a ground. There is more info on here about which wires they are; it's been a few months since I installed mine and I can't remember which is which but I know the info is out there.

Oops, my bad. The three wires that get spliced are the ground, Fused B(+), and the PCI bus. The fourth wire goes to a fused 12v source (I took mine to the fuse box). More info can be found by clicking the link in the first post way back on page one.

 

[tulsa]

You can actually find all the wires you need in the radio harness, simpler and more room to work.
Lewis

 

[ObiHann]

Silly question but my 02 KJ came with a OTIS, but I know the EVIC has soo many more options, is it possible to replace my OTIS with a EVIC, and if so, will any of these features actually work, or will they just be for looks since my vehicle never came with them?

 

[tulsa]

ObiHann,

EVIC from an 02 or 03 should just plug up. All you actually need to change is the trip computer portion. 04 and new EVIC may not read temperature.

 

[BjBnet]

I have an Otis for sale in the stuff for sale section if anyone is interested. Just upgraded to an evic

 

[benstudley]

EVIC install tomorrow!

I got my EVIC on eBay a couple weeks ago. It is an 06 and will be going in a 2005 Renegade. Thank god for this thread! I will post installation pictures after I am done.

Here are all of the part numbers for my install:
EVIC - 56010520AE (from eBay)

I got the mounting bracket and wiring pigtail from www.moparpartsamerica.com
The part numbers are:
Wiring Harness: 5183472AA This came with the plug and 6 wires.
Mounting Bracket: 5072348AA

I plan on using tap splices to splice into the data connector under the steering wheel. Then I'm going to use one of those add a fuse kits to get the power on ignition.

(I know this information is all elsewhere, but I thought I'd go ahead and combine it in case someone comes to the end of this thread.)

Thanks everyone for the info!

 

[tdamocles]

Wiring Harness: 5183472AA This came with the plug and 6 wires.

That is an interesting find. It looks to be only $10. Do you actually have this part in hand and it is correct?

 

[benstudley]

That is an interesting find. It looks to be only $10. Do you actually have this part in hand and it is correct?

Someone actually posted the part # a few pages back (along with the pinouts) but no one seemed to comment on it or mention it again. I found it and saw it was only 10 bux so I figured I'd order it. If it wasn't the right one, I wouldn't be out that much.

I received the part last week and it is indeed the correct part. It comes with 6 white wires and the plug. You only need to attach the 4. I have a picture, but it's at home. I'll post it when I finish (start) the install.

 

[benstudley]

Well... I'm all done installing. Here are some pictures of the process. The hardest parts were cutting the headliner (afraid I'd cut too much!) and gluing the mounting bracket to the roof.

I used tap splices to splice into the wires for the Datalink Connector. For the power, I used an add-a-fuse kit to add to the 13th cavity (I think.) I fired it up and it worked perfectly. Temperature was accurate right off as well as the compass.

I had to run to the auto store to find a lightbulb because my EVIC was missing one. Once I did that, I popped it right in and everything worked beautifully.

Here are some pictures:

 

[benstudley]

Here are all of the pictures from the install:

http://www.getdropbox.com/gallery/415455/1/EVIC?h=d81eb7