How to get code reader to work on EOBD port on early gen 3's

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How to get code reader to work on EOBD port on early gen 3's

#1

Post by kevinmac21 » Sun May 12, 2013 10:32 am

Ok so I have one of the early Gen 3 V6’s and could not get my code reader to work on it. Looking though the forums I found a link http://hyundaicoupeclub.co.uk/diy-guide ... t9432.html to do a mod on the ecu or bcm to make a code reader work. Looking at this I saw that it was not that easy to get to the wire so I went on a mission to find and easier way as this is what I did and worked perfect

DISSCONNET THE BATTERY BEFORE YOU DO ANY OF THIS


• First remove the centre console to do this is easy just remove gear stick surround which will just pop off then remove the 3 screws on either side of the console and 2 screws under the ashtray and you can remove.
• Next as you can see in the pic below a connector underneath the ashtray. The top part of it nearest to the front of the car is where you will need to connect to you can push the black wire cover back easy to show more of the wire.
1.jpg
• Pic below shows pin 4 on the top connect is blue and orange this is the one you will need to connect to as this will bypass the bcm (DO NOT CUT THE WIRE ONLY CONNECT INTO IT)
2.jpg
• Now use a connector to tap into the blue/orange wire at pin 4 (don’t cut the wire)
3.jpg
• Now you have done this all you need to do is to run the new wire direct to the OBD port behind the fuse cover on the driver’s side. To make life easy just unscrew the two screws that hold the panel below the steering wheel and the whole thing clips off and you can see the port and the wires going in to it.

• Once done that all you need to do is connect the wire you have direct in to pin 2 on the obd port (THE SOLID BLUE ONE) and then cut the blue wire ensuring you insolate it so you don’t have a live wire hanging around. You can see if the pic below I used the same type of connector then just cut the wire one fitted.
4.png
• Below all connected up and cut wire tapped off.
5.jpg

• Ok this should now allow you to use a code reader so you can clear check light and check what issues you have with the car. I must point out this worked for me and what I have done is just a simple way to connect to the ecu without having to spend hours try to get to the ecu or other side of the bcm. This should not take more than about 15 mins to do. Hope this helps anyone with the same issue I had.

Thanks
Kevin



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Re: How to get code reader to work on EOBD port on early gen

#2

Post by kevinmac21 » Sun May 12, 2013 10:48 am

Hope it help others, no more going to Hyundai for me :happy-partydance:

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Re: How to get code reader to work on EOBD port on early gen

#3

Post by VoodooRoller » Sun May 12, 2013 10:55 am

Nice guide, glad it works :)
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Re: How to get code reader to work on EOBD port on early gen

#4

Post by geezer » Sun May 12, 2013 6:24 pm

Does anyone know if this will work on Gen 2s?

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Re: How to get code reader to work on EOBD port on early gen

#5

Post by geezer » Sun May 12, 2013 6:54 pm

Thanks for confirming and damn mine a 2000 my friend has the reader and tried doing itthe other day with no luck shame.

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Re: How to get code reader to work on EOBD port on early gen

#6

Post by Alxnks » Sun May 12, 2013 7:21 pm

rikthornton wrote:Entirely different protocols mate, not a hope in hell. If it makes you feel better, I don't think any '2's had the facility as the production run had finished by sept '01...
I have an early 3...port working fine with obd reader, not modifications needed. My brother has a 2....port working fine as well. Even my grandparents accent back from 2000 has a fully working port!

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Re: How to get code reader to work on EOBD port on early gen

#7

Post by Alxnks » Sun May 12, 2013 7:27 pm

rikthornton wrote:Maybe they do things differently wherever it is you live then mate ;)
Yes, or maybe noone can be 100% sure with these ports on hyundais!

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Re: How to get code reader to work on EOBD port on early gen

#8

Post by geezer » Sun May 12, 2013 8:25 pm

Well the port on my gen 2 wouldnt read the other day when my mate tried, it connected but wouldnt read.

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Re: How to get code reader to work on EOBD port on early gen

#9

Post by kevinmac21 » Mon May 13, 2013 1:23 pm

Are you sure that the Gen 2's just had some hyundai wiring so you could not read the ecu? anyone looked at the wiring digrah to see what wires go where from the ecu to the port.

May be a stab in the dark but they did mess around with the gen 3 so maybe did something simular on gen 2??

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Re: How to get code reader to work on EOBD port on early gen

#10

Post by gazzakuk » Sun Jun 30, 2013 11:31 pm

Great walk through! Many thanks for posting it.

I was a bit nervous about cutting the wire on the back of the OBD socket but it worked fine. My only problem is that with the reader plugged in I cannot start the car. If I take it out then the car starts no problem.

Anyone else experience this?

Thanks again

Gary

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Re: How to get code reader to work on EOBD port on early gen

#11

Post by kevinmac21 » Mon Jul 01, 2013 5:08 am

Glad it worked out, what reader are you using? I just have a cheap one and start fine with it plugged in.

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Re: How to get code reader to work on EOBD port on early gen

#12

Post by Mr Tiburon » Fri Oct 04, 2013 10:27 pm

Just done this on my V6 and hurrah I can now connect a reader...It works!
A different kind of Coupe 3.5 V6
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Re: How to get code reader to work on EOBD port on early gen

#13

Post by kevinmac21 » Tue Oct 15, 2013 3:41 pm

Glad it worked for you easy once you know how :handgestures-thumbupleft:

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Re: How to get code reader to work on EOBD port on early gen

#14

Post by geevee » Sat Apr 19, 2014 6:13 pm

Does this mean there isn't any code reader available that will work with an early Gen3 V6 unless this modification has been done?
It seems like it, because I have been to a couple of garages with my early Gen3 V6 (May 2002) and their readers just didn't work.

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Re: How to get code reader to work on EOBD port on early gen

#15

Post by Jarno » Mon May 19, 2014 4:29 pm

Did this today as my reader wouldnt pickup any signals from the port. Worked like a charm. Very simple and quick mod.

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Re: How to get code reader to work on EOBD port on early gen 3's

#16

Post by RPM » Fri Mar 20, 2015 2:25 am

Hi, newbie here,
Thank you so much! worked perfectly on my early 2002 v6. took about 20/25mins.
I've now got my tablet with scanmaster-pro scanning/tuning software plugged into my 7inch stereo screen so I can see live sensor data, handy as I have a very intermittent problem i'm trying to sort. no fault codes coming up yet as it happens so rarely.

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Re: How to get code reader to work on EOBD port on early gen 3's

#17

Post by RPM » Sun Mar 29, 2015 11:28 pm

By the way, for some reason Pin 2 is actually Pin 7 on mine. ( can't remember if it's the K-Line)
Thought I might point that out in case someone's confused.
It actually has each Pin numbered, tried to send a pic, but my tablet won't let me.

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Re: How to get code reader to work on EOBD port on early gen

#18

Post by RPM » Sun Mar 29, 2015 11:32 pm

gazzakuk wrote:Great walk through! Many thanks for posting it.

I was a bit nervous about cutting the wire on the back of the OBD socket but it worked fine. My only problem is that with the reader plugged in I cannot start the car. If I take it out then the car starts no problem.

Anyone else experience this?

Thanks again

Gary
Yep, sort of anyway, mine won't start first time but OK after that, starts as usual.

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Re: How to get code reader to work on EOBD port on early gen 3's

#19

Post by Technowerzel » Sun Mar 13, 2016 7:23 pm

Solved the issue on my March 02 reg V6.
Now have communication with code reader.
Thanks for the post, would never have found it otherwise.
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Re: How to get code reader to work on EOBD port on early gen 3's

#20

Post by ElmerFudd » Tue Sep 05, 2017 6:03 pm

Hi guys, I brought an obd 2 reader from eBay to use with the torque app.

Torque says it can't connect to ecu, I'm wondering if this is my problem, although title says for early gen3's?

My car is 55plate gen 3.5

This is the adapter.
IMG_20170905_180143.jpg
Adapter connects to my phone fine just can't find ECU. Just want to confirm i don't need to do this mod.

Thanks

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Re: How to get code reader to work on EOBD port on early gen 3's

#21

Post by Mike.Lawre » Tue Sep 05, 2017 7:36 pm

You should be fine :think: It's only the early 02s and 03s that some had a problem :confusion-shrug:
My late 03 is fine !


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Re: How to get code reader to work on EOBD port on early gen 3's

#22

Post by nissan300zx » Thu Sep 07, 2017 2:03 pm

your 3.5 will be wired to connect to the ecu. so i would guess its a faulty device.
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EOBD

#23

Post by BionicSi » Wed Mar 07, 2018 5:22 pm

Know this is an old post but can I just ask does this put the eml light out.

A club member did this wire fix for me and light went out after having battery off and reset.
So took it to the garage and had it pkugged in it connected and communicated which it didnt before and came up with no faults! after a short drive the eml light is back on so ok guessing the a fault is now showing took it back to garage where it said fault in engine managment light the continued to read everything and came back woth no faults but eml light still on??

Does the eml light stay off with this fix does anyone know? And any advice on this

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Re: How to get code reader to work on EOBD port on early gen 3's

#24

Post by nissan300zx » Sat Mar 10, 2018 5:01 pm

it will alow you to read any codes and the reset the ecu.
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Re: How to get code reader to work on EOBD port on early gen 3's

#25

Post by Shel » Sat Mar 10, 2018 6:33 pm

Intermittent EML light can happen and not always a throw a code. The most common cause of the EML coming and going is an exhaust leak, usually on the flexi joint or dirty intake sensors. The latter is quite often an easy fix with carb or MAF cleaner.
The code reader will allow you to reset an EML fault which lights up but it will always come back if the fault is not repaired.
Finding the fault without a code is not only very odd but going to make it difficult to trace then you will most probably need the full on system that Hyundai Service Centers have.
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