38 pin and carsoft 7.4

[Bazzle]

OK I got my Carsoft 7.4 and adaptors0 (generic copy )
Came direct from manf in China ($173 US)
I only have 38pin , NO OBD11.
Installed software on laptop PC.
Plugged into car, key in pos 2, allowed it to read all systems.
Hmm, only reads ME system and reports error (codes I guess)
all others No response.

Used it to clear the error .. OK

Started engine then opened live data.

Good here. reads, RPM, Camshaft Hall effect angle, engine temp, MAF voltages, airflow, vacumn, Lambda sensor (s) voltages, and a couple more.
The above live readings wold be usefull for fault finding.

With interogation of other systems on the car I was dissapointed it didnt. Further investigation is warranted but maybe like Paul-home thsats all you can do?
http://www.benzworld.org/forums/r170...nn-2001-a.html

BAzzle

[David in Australia]

Good to hear it works....sounds as though the available functions are similar to what is obtained through the OBD11 connector with the ELM interface

Pity the other systems don't seem to be accessible.........but still sounds like the best option for those of us with only the 38 pin round connector

Hopefully some configuration changes are available to open up the rest of the system

So is it 'thumbs up'....or 'a bit each way'....or 'not recommended'

David

[Bazzle]

Originally Posted by David in Australia

Good to hear it works....sounds as though the available functions are similar to what is obtained through the OBD11 connector with the ELM interface

Pity the other systems don't seem to be accessible.........but still sounds like the best option for those of us with only the 38 pin round connector

Hopefully some configuration changes are available to open up the rest of the system

So is it 'thumbs up'....or 'a bit each way'....or 'not recommended'

David

A Bit Each Way ATM..

Will play another day

Bazzle

[osdesierto]

I'm going to try this one.

www.scantools.net

[Bazzle]

Originally Posted by osdesierto

I'm going to try this one.

www.scantools.net

Your lucky. Our Aussie pre 2000 SLK's do not have the OBD11 socket , or as Im led th believe all the diagnostics functions of OBD11.

Bazzle

[osdesierto]

I heard from a fellow junior member that this thing is pretty good for $130. Can reset codes as well.

[aharkins]

I just purchased another kit, but had exactly the same result. I can read ME fault codes and live data, but that's it.

My guess is that it's a software problem. Have you had any luck getting it to work?

[Bazzle]

Originally Posted by aharkins

I just purchased another kit, but had exactly the same result. I can read ME fault codes and live data, but that's it.

My guess is that it's a software problem. Have you had any luck getting it to work?

From my research 99% of fault codes are stored in the ME.
It (Carsoft) has allowed mr to clear fault codes too.
I am happy with that. The live data is good for diagnostics if you can interpret the data .

Bazzle

[Msmax]

Hello Bazzle,

Maybe I can explain how this CS7.4 works.

At first in MB all controllers are connected to different pins in the 38pin plug under the bonnet for the pre 2001/2002 cars. Means you can have 38 - (12V) - (GND) = 36 communication channels.

Your PC only has 1 comms channel.

So, the software sends a "pin selection" command to the interface which then selects which pin to "connect" to the PC. After this the PC will send commands for the controller to which it is connected to.

The selection for data to interface or car and interface reset is done using the DTR signal in the RS232 commport.

This also means that you should have bought an multiplexer (MPX) interface which understands the selection commands to be able to read all the different controllers in your car. I do not think that your interface is a MPX model.
It will work if you can connect the data line from the interface to each of the pins in the 38pin socket seperately, depending on what you like to diagnose. Means for ABS connect to pin 6 for KI connect to pin 15 etc. The cable with the RED/BLACK and Yellow plug are used for the W124 and before series for analogue diagnosing. If you manage to make a cable with smaller plugs then you can diagnose the other sytems as explained above.

What you have bought is also known as a K(K)L interface which costs about 50 euro and is very well suitable for diagnosing VAG cars with VAGCOM.

Hope this makes it clear why you can read errors from your motormanagement only. It is connected to pin 4 or 5 (depends on the model).

Pin 1 = GND
Pin 3 = 12V

The ME ONLY stores errors related to the motormanagement.
The ABS controller stores ONLY errors related to the ABS system... etc

Regards, Msmax

PS. Do not go for Scantools if you like to have access to other controllers then the motormanagement system.
This is an OBD2 diagnose tool which is worth the price but will ONLY diagnose the engine system.
If you do use scantools hardware then please check out my OBD2 software package which works fine with Scantools ELM 327 and mOByDic interface at www.obd2spy.com
OBD2 is implemented in west Europe from 2001 for petrol engines and from 2003 for diesel engines.

CS has code to access all other controllers in your car too.

[David in Australia]

Thank you very much for the Carsoft info....I have the same unit as Bazzle

I suspected the Multiplexer was the model to access all the systems....considerably more expensive

Is there a method to use the 38pin plug....like rotating it or using a breakout box

Otherwise I may try the 3 small pin method....if I can find suitable connectors

Do you have a list of the various systems' pin-outs

Thanks for your help

David