openecu.org

hi evry one

i am an engineering student from university of uertfordshire..i am trying to connect my obd scan tool (ELM327) to ECU. i dont have any diagonistic port in my car. Is there any chance i can connect that dirrectly from ECU.[img][/img]
here is a diagram of my ecu

thanx

bayezid

If you don't have a diagnostic port then its very unlikely. What car is it and what ECU?

thank you rhinoman for your reply. i have a toyota corolla 86 and i swaped the engine with 4age black top engine and my ECU is 89661-1A360[pic attachted]

unfortunatly i dont have any obd port in my car...but i believe that my ecu is 96 which 1 is obdII compitable...so if i want to find out 16 wire for digonistic port...how do i get them from ecu..and how can i connect ELM 327 wth that???

please help me coz i want to to run dataloggin software with my car.

thanx[img][/img]

You really need a schematic for the vehicle that the ECU came out of. There may well be some Toy experts on here though. Looking at that pin out I can see 3 pins marked 'Check' connector. VF may be the 12V supply, and TE1 and TE2 may be K line and L line, I'm just guessing though. Are there any wires going to those pins?

Rhinoman wrote:You really need a schematic for the vehicle that the ECU came out of. There may well be some Toy experts on here though. Looking at that pin out I can see 3 pins marked 'Check' connector. VF may be the 12V supply, and TE1 and TE2 may be K line and L line, I'm just guessing though. Are there any wires going to those pins?

Hi,
Please, take a look http://alflash.com.ua/vf1.htm (about Toyota Vf1 voltage) http://alflash.com.ua/Vf1/Vf1Toyota.htm and http://alflash.com.ua/dtctoyota.htm about others #pins of DLC No.1*
As I sure this Corolla is not OBD-II or EOBD, but is "pre-OBD-II Vehicle"...
BR,

*maybe by http://babelfish.altavista.com/babelfish/tr

p.s. Yoy can read the Data transfer on Vf1 pin (after short E1 and TE2).
e.g. http://alflash.com.ua/vf1new.htm (Russian)

thank you rhinoman and alflash for your help.

i think this ecu is from 1996 toyota levin..as it is after 1996 i believe this is an OBDII...i might be wrong!!

i do have ELM327 and KWP 2000+....ny idea how i can connect the ecu with my laptop? and if itz not possible with elm nd kwp then how i can connect the ecu with my laptop to get RPM/MPH nd other data for digimoto..???

thanx

Hello!
O'k.
As I see in ECU_AE111_20V_4A-GE_small.jpg Yours ECM not use the "OBD-II Signals' ("pins"):
http://alflash.com.ua/OBDII/dlc3_.gif and http://alflash.com.ua/Learn/dlc.gif
Unfortunately, I did not meet program for Toyota as analogous DDL* for Nissan, MUT-ISO of for MMC**, etc.
BR,


* http://alflash.com.ua/consult.htm
** e.g. by OpenEcu or others ( http://alflash.com.ua/Temp/idle.gif )