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E34 (1989 - 1995)

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  #26  
Old 01-09-2013, 02:17 PM
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The ews2 module is on the driver side knee bolster and on the left side closest to the door its got a yellow rectangular connector . The trick is to slide the connector locking key sideways or up can't remember but that releases the plug . It's numbered I believe

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  #27  
Old 01-09-2013, 02:21 PM
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Quote:
Originally Posted by Doktor Bert View Post
I cannot find it!!!!!! HELP!!!!
gentlemen, gentlemen, gentlemen,

Supertech's EWS thread

I should do a writeup on how to find threads
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  #28  
Old 01-09-2013, 02:25 PM
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LOL thanks Monsignor , I couldn't even find my own thread , now that's sad

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  #29  
Old 01-09-2013, 02:33 PM
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Nothing there, so it could have been cut out????
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  #30  
Old 01-09-2013, 02:41 PM
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The car has not been in running condition under your care. So it could have very well been removed and we wouldnt have found it until now. Can you splice a wire in there? just to connect the ignition switch to the starter to give it juice?

Can you take a picture of where your're looking or think this wire is so that supertech can tell you exactly whether its there or not?
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Last edited by Monsignor; 01-09-2013 at 02:43 PM.
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  #31  
Old 01-09-2013, 05:21 PM
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Will post pics tomorrow...
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  #32  
Old 01-09-2013, 05:23 PM
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Will post pics tomorrow...
Great ! A picture would be a good tool to start with !

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  #33  
Old 01-09-2013, 05:40 PM
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My cell phone takes awful photos, but there isn't a yellow connector anywhere on the driver's side.

There is an aluminum box in the LF kick panel, but looks like cruise control to me....
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  #34  
Old 01-10-2013, 03:53 AM
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It's in there Bert , can you trace the wires from the ignition switch ? It's a yellow and black wire . I cannot point it out cause you have a bad pic , and the pic is from the side it has to be from the front

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  #35  
Old 01-10-2013, 01:59 PM
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Still looking....
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  #36  
Old 01-10-2013, 04:37 PM
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Still looking....
I don't know how else to help you... we need more pictures in better quality and details...

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  #37  
Old 01-10-2013, 07:15 PM
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I don't know how else to help you... we need more pictures in better quality and details...

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+1

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  #38  
Old 01-11-2013, 08:04 AM
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Should have a better photo later today. I think the EWS was cut out by previous workers.....
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  #39  
Old 01-11-2013, 09:14 AM
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Ok, I hate to do this, but I am going to throw a monkey wrench into the discussion. OP says that his car production date is 12/94. The following information says that EWS II started with production 1/95:

http://www.unofficialbmw.com/images/BMW_EWS.pdf

I know that EWS II had a silver label DME. I'm not sure of the color of the DME label for EWS I.

So ..... OP should have EWS I, but should not have EWS II. Unfortunately, I am not familiar with the EWS I and how it causes the car to act if activated. I assume it would do the same as the EWS II, but I can't say with certainty. I am also not familiar with what has to be done to bypass EWS I. I am at work right now and don't have the time to research it.

Sorry to monkey things up, but this may be an important piece of the puzzle.
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It's Deja Poo - as in, I've heard this **** before.
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Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #40  
Old 03-25-2013, 06:24 PM
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Ok!

With the 413 DME and the green wire clipped at the round bulkhead connector, the car starts and runs great when jumped at the starter.

The 'signal' wire on this car at the switch is (large) black/yellow, which splits at a connector near the knee bolster to a (Large) black/green wire. This continues out through the firewall and I lose it in a large bundle of wires.

The 'signal' wire at the starter is larger yet and solid black. It appears to travel into the rectangular box along the firewall where it appears to go into and out of the DME.

Where do I splice this so it will crank from the ignition key?????

Thanks for your time and expertise....
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Last edited by Doktor Bert; 03-25-2013 at 06:30 PM.
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  #41  
Old 03-25-2013, 08:39 PM
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The large black/green wire is to the B+ jump start connector in the engine compartment. The signal wire at the starter solenoid should be also black/yellow, if it is not then someone must have changed it. You would splice the black/yellow wire from the switch to the black(?) wire that is at the starter solenoid. If you have a copy of Bentley the starting circuit diagram for a late 525i is located on 64-EWD.
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  #42  
Old 03-26-2013, 07:44 AM
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I found a tall yellow relay next to a pair of short pink relays marked 'ABS' hidden in the left footwell. Could this be the starter immobilization relay????? Wouldn't you make the connection here???
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  #43  
Old 03-26-2013, 08:16 AM
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Here is the relay I believe to be the starter immobilization device...
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  #44  
Old 03-26-2013, 08:23 AM
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The EWS module has a large yellow connector with approximately 12-15 wires (I never counted them). It is way up under the dash on the driver's side. Remove the lower dash cover on the driver's side and, with a flashlight, look up and you should see the yellow connector to the EWS module. The connector is a little difficulty to get off. You have to slide it to release it. If you locate the connector, take a close look at it. You will notice that the wire at #4 is a large solid green wire. #1 is black/yellow if I remember correctly. I can't remember the color for #3. Just use the actual number on the connector to determine which wires to cut rather than just colors.

If you are attempting the DME swap to a red label 413 DME, cut and cap each end of the solid green wire (#4). Making sure to leave yourself enough room for splicing, cut wires #1 and #3. Bridge #1 and #3 together at the wiring harness side and at the EWS connector side. Put in the red label DME and you have now successfully swapped out the DME and bypassed the EWS.

Hope this helps.
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Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #45  
Old 03-26-2013, 12:32 PM
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That's my problem here as there is no yellow connector or module anywhere. Could this be EWS-I????
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  #46  
Old 03-26-2013, 01:13 PM
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Quote:
Originally Posted by Doktor Bert View Post
That's my problem here as there is no yellow connector or module anywhere. Could this be EWS-I????
I just looked at the post above with the yellow relay. That is not what the EWS II EWS relay looks like.

I re-read this thread. Does the car still start and run if the starter is jumpered? If so, then all of the electricals for engine management are intact. If EWS was the issue, the car would not run.

Is it that you just don't get it to start by putting the key to position 3? If so, have you checked the starter relay and the neutral safety switch?

Just thinking out loud.
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Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #47  
Old 03-26-2013, 02:46 PM
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Doktor Bert Doktor Bert is offline
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I think I have figured this out.

This 12/1994 E-34 has the EWS-1 that uses the GM as command module for the starter immobilization relay (SIR). This car has a silver label DME, which may not have been correct, but when I installed a red label '413' DME the car started after 3 years of shops unsuccessfully trying to get it running. A friend bought it and I am helping him with getting it on the road again.

Now I am looking hard at the GM and the SIR as part of the puzzle.

If I jump the starter, it fires and runs fine.

I do notice the heavy black wire from the starter appears to go into and out of the DME harness and it does not appear to have been messed with, so I am now looking at the GM and SIR....

P.S. my board computer functions and I can input a code and unlock it.
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Last edited by Doktor Bert; 03-26-2013 at 02:49 PM.
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  #48  
Old 03-26-2013, 09:50 PM
upallnight upallnight is offline
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Quote:
Originally Posted by Doktor Bert View Post
I found a tall yellow relay next to a pair of short pink relays marked 'ABS' hidden in the left footwell. Could this be the starter immobilization relay????? Wouldn't you make the connection here???
You didn't tell us that at the beginning. If there is a black/yellow wire and a brown/yellow wire you can jump those two terminals after removing the relay.


Quote:
Originally Posted by Doktor Bert View Post
Here is the relay I believe to be the starter immobilization device...

Hard to tell from the picture, can you identify the number of wires at each relay and the wire colors?

Just remove the relay and use a jumper across the terminals and see if the engine will crank. Do you have a wiring diagram for the car? Do you have a copy of Bentley?

Last edited by upallnight; 03-26-2013 at 09:58 PM.
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  #49  
Old 03-26-2013, 10:11 PM
upallnight upallnight is offline
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EWS I
EWS I was installed on vehicles beginning production 1/94, replacing the original Drive
Away Protection System.
Purpose of the System
The next level of compliancy with the European Insurance Commission required additional
changes from the previous system. An additional component was added called the Starter
Immobilization Relay. This relay module provides added theft prevention and safety features.
At the time of introduction the system was referred to as Electronic Drive Away
Protection which in German is Electronische Wegfahrsperre or EWS.
The EWS I system consisted of the following components:
Starter Immobilization Relay
Door Lock Cylinders and Switch
General Module
Board Computer (if equipped)
Transmission Range Switch
DME Engine Speed Signal (Beginning 6/94 Production)
DWA (E31)
System Components
Starter Immobilization Relay
The Starter Immobilization Relay was installed on E31, E34 and E36 vehicles.
It was in the following location:
E36 -In the relay carrier to the left of the steering column.
E31/E34 -In the "A" pillar above the footwell kick panel speaker.
The Starter Immobilization Relay functions as a "Smart Relay", a relay which receives inputs
from various sources looking at the proper combination of input signals before activating a
component, in this case the starter.
The Starter Immobilization Relay receives input from:
Ignition Switch General Module Board Computer
Trans Range Switch DME (>6/94)
And processes output to:
Starter DME
8510104
Door Lock Cylinders and Switch
The door lock cylinders and switch input a High/Low signal into the GM informing the GM
of lock status. The signal is High when the system is in Double Lock.
General Module
The GM receives the High/Low signal from the door lock switch and outputs a High/Low
signal to the Starter Immobilization Relay. A High signal indicates the vehicle is in Double
Lock.
Board Computer
The Board Computer outputs a High/Low signal to the Starter Immobilization Relay. A High
signal indicates the Code function is active.
Transmission Range Switch
The Transmission Range Switch input with automatic transmission equipped vehicles
allows the Starter Immobilization Relay to provide a Neutral safety switch function. A High
signal from the Trans range switch indicates the transmission is in Park or Neutral. A Low
signal indicates the transmission is in a drive gear and will prevent starter operation.
DME
The DME is both an input device (after 6/94) and an output device of the Starter
Immobilization Relay.
Input
Starting with production 6/94, the DME "TD" (engine speed) signal was added to the inputs
of the Starter Immobilization Relay. This additional input allows the relay to provide a starter
protection feature. The internal relay contact (starter operation) opens if the TD signal
exceeds 60 Hz which equals the following engine speeds:
8510103
EWS I -
Starter
Immobilizer
Relay
After 6/94
Driveaway
Protection
Signal
Range
Switch
Code
4 cylinder =1800 RPM
6 or 12 cylinder =1200 RPM
8 cylinder =900 RPM
The relay contacts will close when the exceeded Hz value drops to 5Hz below the maximum
value. This is intended as a safety feature to prevent starter motor activation when the
engine is running above these speeds.
Output
The DME receives a High/Low signal from the Starter Immobilization Relay. When the signal
is High, the DME does not activate injector or ignition operation.
DWA (E31)
The DWA outputs a High/Low signal to the Starter Immobilization Relay indicating the condition
of the alarm system. A High signal indicates the alarm is armed, preventing vehicle
starting.
Principle of Operation
The EWS Starter Immobilization Relay receives it's inputs from the Ignition switch, GM (or
DWA), BC, Trans Range Switch and the DME (after 6/94). The relay will prevent engine
starting if:
The vehicle is locked from the outside. The GM receives the High signal from the
door lock switch and sends a High signal to the EWS.
The BC Code function is set.
A DWA High signal is received. (E31only)
A Low signal is received from the Trans Range Switch.
The engine speed signal from the DME exceeds 60Hz. (after 6/94)
The Ignition and injection functions of the DME are disabled and the KL50 start signal to
the starter is opened to prevent starter operation.
Workshop Hints:
Starter Immobilization Relays are different for manual and automatic vehicles, check to ensure correct
relay is installed.
The Starter Immobilization Relay is not on the Diagnostic Link. Conventional troubleshooting techniques
using the DISplus, a DVOM and the correct ETM are necessary.
Loss of input from the GM or BC will allow the engine to start.
Loss of input from the Trans Range Switch will NOT allow the engine to start.
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  #50  
Old 03-27-2013, 12:16 AM
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Doktor Bert Doktor Bert is offline
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Thanks, guys....

Will put some more time on it tomorrow after work...
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