FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Multiecuscan usage help and guides
sam29
Posts: 3
Joined: 07 Jan 2011, 20:54

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by sam29 »

Sorry to aks, as I read the post again and OP (orginal poster) mentioned that this should be for those who can connect but cannot connect to Can.

Well in my case my ELM327 is connecting through BT to my N900 and but giving the error when connecting through N900 software (CARMAN) and log file which is written in my above posts could be read.

But it connects fine with my laptop and android phone.

Shall I assume that I should do what OP did?

or Am I completely off from the topic?

cheers.
Last edited by sam29 on 08 Jan 2011, 11:03, edited 1 time in total.
Argo
Posts: 6
Joined: 13 Dec 2010, 12:17

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Argo »

Personally I wouldn't even bother (as it works with your laptop) but all the info you need is in this thread if you do want to go ahead with the RC mod.

It's a fair bit of messing around and I suspect it wont work anyway :(
Deano
Posts: 6
Joined: 04 Sep 2010, 17:02

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Deano »

Argo thankyou for your resistor 14 mod, just one question do i still need to carry out mod with resistors and caps,
as my elm 1.4 is working fine now as i moved can lines to 1 9 for punto evo 1.4 8v. anyone shed any light on this


Regards Deano
Argo
Posts: 6
Joined: 13 Dec 2010, 12:17

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by Argo »

Deano wrote:Argo thankyou for your resistor 14 mod, just one question do i still need to carry out mod with resistors and caps,
as my elm 1.4 is working fine now as i moved can lines to 1 9 for punto evo 1.4 8v. anyone shed any light on this
Mine works fine without but I suppose if you're keen then it's worth doing the RC mod as it will likely provide better protection to the interface.
alfa156sarajevo
Posts: 870
Joined: 12 Feb 2010, 09:03
Location: EU, Germany

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by alfa156sarajevo »

Argo wrote:I found a quick and dirty solution:
  • Bought the cheapest ELM327 interface from eBay (actually V1.4)
  • Disassembled and found I had the board below.
  • Using a craft knife I carefully destroyed the 120ohm resistor (R04 on the board). Be careful you don't damage R17 just beneath it.
  • Resembled and it works a treat!
Image
Argo
I have the same interface... Just few more questions for you:
- Did you removed only R04 resistor and ELM 327 interface worked OK with CAN line? :roll: or
- Did you removed the R04 resistor and installed 2 resistors of 100 Ohm and 2 capacitors of 560 pF on CAN line (pin 14 and pin 6)? :roll: or
- Did you removed the R14 resistor and installed 2 resistors of 100 Ohm and 2 capacitors of 560 pF on CAN line (pin 14 and pin 6) as Yani described in this topic on first page? :roll:
Coded Keys & CODE card for Alfa Romeo, Fiat and Lancia cars
cendler
Posts: 21
Joined: 13 Sep 2010, 05:44

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by cendler »

alfa156sarajevo : removed only R04 ;)
yincar
Posts: 14
Joined: 02 Sep 2010, 08:30

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by yincar »

my ELM interface CAN mode is up and running now after adopting Yani's fixes. thanks to all. :mrgreen:
alfa156sarajevo
Posts: 870
Joined: 12 Feb 2010, 09:03
Location: EU, Germany

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by alfa156sarajevo »

cendler wrote:alfa156sarajevo : removed only R04 ;)
cendler
Thank you very much! Will try it in few days! ;)
Coded Keys & CODE card for Alfa Romeo, Fiat and Lancia cars
skylight75
Posts: 10
Joined: 15 Dec 2010, 14:35

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by skylight75 »

I have a LANCIA YPSILON 1.2 8v ecu marelli, year production 2003

I can get into each module, also service interval, and proxy alignment, but, when i try to RESET the service, i get an error : reset failed.

WHY ? is because of faulty elm 327 or is not possible on this car to reset the service ?
skylight75
Posts: 10
Joined: 15 Dec 2010, 14:35

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Post by skylight75 »

i checked. in my ypsilon there is not service reset warning light.

i have checked 5 different version of elm 327 1.4/1.5

all were working through CAN,except for one that was with a resistor 121 ohms between PIN 6 AND 14


i tried two combination, just "dirty" solution, taking away the resistor --> everything working ok

Yani solution --> everything working ok

i think that the dirty solution is working without problems.

all the last shipping from china ( i am an ebay reseller ), are ok, respect the original ELM 327 specification

i guess that in CHINA they have understood that the previous version of ELM 327 were faulty..... i guess this, because all new interfaces are correct, and i have different suppliers
Post Reply