ECU on bench

User topics relating to hardware that interfaces PCs to ECUs

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ECU on bench

Postby Jez » Wed Nov 09, 2005 4:27 pm

I should be getting my open port interface shortly and wondered if people have got an ECU up and running on their bench?

If so - could anyone tell me which pins are the correct ones to connect up for the USB/OBDII interface?

I've had a search around and can't find any pinouts for my ECU (UK Impreza P1)

Any help gratefully received :)
Jez
 
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Postby peewee » Wed Nov 16, 2005 2:22 pm

Hi
I am busy right now to get one working on the bench, hopefully i know tomorrow.
I let you know
peewee
 
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Postby intrawrx » Wed Nov 16, 2005 4:51 pm

I too would also be able to know the specifics in regards to which pins etc.

I have ample access to AUS ecu's and would like to get as many images as i can to help the project along.
intrawrx
 
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Postby peewee » Fri Nov 18, 2005 3:08 pm

Trying to get it work this afternoon but it won't so far.
I am testing with a 2002 EDM ecu, i can communicate with a OBD2 tester but can't read the flash.
So the ecu is working on the bench.
I am a little confused with the wiring for the "flash connector" there are 4 wire's wich has to be jumped and they come from the ecu to the DLC connector but from there?
Can anybody help?
peewee
 
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Postby qoncept » Fri Nov 18, 2005 4:01 pm

Image
Peewee, I'm not sure if the wires are the same at the ECU harness and if your ECU is the same, but in this picture you can see the ones that need to be jumped.
qoncept
 
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Postby peewee » Sat Nov 19, 2005 2:09 pm

Hi,
Thanks for the info.
I have the ECU on the bench not on the car.
2 wires from the white connector are coming from the ecu the other 2 are going to the OBD connector. Must i connect them with the L line or with the Flash voltage regulator?
So far i have the test connector (Pin A5) connected to ground.
SSM K-line (pin A21) to Pen 7 OBD-K-line.
The ecu is going in test mode the CEl is flashing.
It is a little confusing because Subaru mirror's the OBD connector numbers in there schematic's.
I have build the openport interface (i have tested the interface with vagcom software and is working) but i keep getting preamble 1 error while reading the ecu.
Greetings Paul
peewee
 
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Postby peewee » Mon Nov 21, 2005 2:04 am

Hi
All working ok now here is how i connected the ecu,
Its a 2001/2002 type.

E2, E3, E10, A14 to 12v
E15, B17 to gnd.

A5 to gnd is the green test connector
A20 to OBD pen 9 is the L-Line
A21 to OBD pen 7 is the K-line
A10 to OBD pen 11 is the flash voltage.

Connector A=B134, B=B136, E=B137

Best regards
Paul
peewee
 
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Postby intrawrx » Wed Nov 23, 2005 7:15 am

Hi, I am about to hook up my ecu to the bench and wanted to check if i have this correct for my AUS 2001 ECU

12v
E2 - Control Unit Supply
E3 - Control Unit Supply
E10 - Backup Power Supply
A14 - Test Mode connector

Ground
E15 - CEL Light
B17 - Ground Power Supply
A5 - Ignition Switch

Tactrix Cable
A20 - L Line on ODB2 connector
A21 - K Line on ODB2 connector
A10 - Pin 11 on ODB2 Connector
intrawrx
 
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Postby peewee » Thu Nov 24, 2005 2:00 pm

Hi
I don't know if the australien version ecu is the same as in europe, i don't have the wiring layout.
peewee
 
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Postby intrawrx » Thu Nov 24, 2005 6:37 pm

Attached is a copy of the wiring schematics that i am currently using.
Attachments
wiring.pdf
Wiring of 01/02 ECU
(165.38 KiB) Downloaded 1587 times
intrawrx
 
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Postby peewee » Sat Nov 26, 2005 2:49 am

Hi,
A14 must be connected to gnd, A5 to 12v.
The ceL via a little lamp (max 1w) to 12v.
Furhter it should be working.
peewee
 
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Postby intrawrx » Thu Dec 08, 2005 6:33 am

I have tried the new corrected pinouts and still no luck.

The ecu draws at 14.4V about 0.35A, i might just chuck the ecu back into the car this weekend to see if its the ECU or something else.

I have some logs from port mon which i will post in the morning.
intrawrx
 
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Postby peewee » Thu Dec 08, 2005 2:50 pm

350mA looks good, not to much.
Did you use a bulb for the Cel, if so was it flashing or constant on?

With only the test pin connected the CEL should be flashing.
peewee
 
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Postby mixja » Wed May 03, 2006 2:22 am

Does anyone have the ECU pinouts for a JDM MY06 STI Spec C?
mixja
 
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Postby wmcdonal » Fri Dec 08, 2006 1:26 am

Hi
I have an ECU on the bench and am having trouble getting anything out of the ECU.
The CEL is flashing.
Read from ECU returns the following then I get an error popup.

[03:47:14.671] ssm2_init
[03:47:14.843] ECU ID is 1B 14 40 05 05
[03:47:14.843] ssm2_cmd_0x81

What am I doing worng?
wmcdonal
 
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