Working models: E34, E36, E38, E39, E46
1. Remove original EWS2 control unit, find +12v ACC, GND, K-line wires, attach emulator.
Emulator must be in service mode: JUMPER 1 shorted.
2. Connect ANY K-line diagnostic adapter to vehicle diagnostic connector and launch
EMULATOR CONFIGURATION UTILITY:
3. Choose your COM port, enter the desired ISN number, press the store button. Or -
4. For some ECU' s it is possible to read ISN number directly from engine control unit.
In this case select option "ECU xxxxx", press Read. Software will try to read ISN.
If successful, choose option "EWS emulator" and press button Store to save ISN number into emulator.
5. Disconnect emulator from K-line, remove JUMPER 1 and connect K output from emulator to
DME(DDE) <-> EWS line.
6. Don't forget to short two starter relay wires (EWS connector)!
7. Car is ready to start.
For EWS3.2 a similar procedure is used, the only difference is that its not connected directly to the K-line so the setup is done direct on the emulator as shown in the picture below.
There are no limitations and can be used as many times as you wish. You can change and store new ISN without any limitations.
Emulator is shipped with JUMPER 1 shorted. For testing purposes ISN 0579 is stored by default.
Because there are a lot of EWS2 emulator related questions, here are some FAQ's to make things clear.
Q: I purchased from china and see that you are designer of this. Please help me, it doesn't work!
A: Ask for support from where you purchased it. Yes, right, we sold this project to some factories all over the world. Quality and support problems exist. Avoid china!
Q: Why is there a 4-digit ISN on your software? INPA reads only 3 digits...
A: First digit is 0 by default. Yes, really ISN for EWS2 is 12 bits long. True!
Q: I have MS41. Where I can find connection points to ECU?
A: It's up to you. If you are not familiar with WDS and Ohm's law, this job is not for you. Leave it to more experienced people.
Q: How to connect it to 2005 MY BMW X5? I tested, it not working. You are selling shit!
A: No comments. There are a lot of EWS related documents freely available on the WEB. Please find the difference between EWS2 and EWS3 principles by himself.
Q: Up to which MY will it work?
A: It depends on engine ECU used. And only ECU! All ECU's designed and first released before 1998 will work. That means - for example - DDE2.2 that was designed and introduced at first in 1996, but used on cars until 2002, will work. MS42 designed at 1998/99 - definitely not.
Q: I have EWS3 on my car. Will your emulator work?
A: Who knows... Any EWS3 can work in EWS2 or EWS3 mode. It is it's coding related. Search for ECU type!
Q: I read ISN with INPA from EWS and ECU. They are different, but car works great. Which one I must put into emulator?
A: You must always use one, read from ECU. But !!! Some old versions of INPA read ISN incorrectly (because it's a function from "production number"). Use Tool32 instead!
Q: How to connect emulator without car to configure?
Software and Manual can be downloaded here