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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 05-07-2017, 10:28 AM   #41
De Sisti
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Try this:
* Put key in ignition and turn to position 1 (leave key in position 1).
* Remove fuses 10, 34 & 43 (the ones for the dash).
* Insert fuses one-by-one (you may hear a whirring noise from the dash)*.
* Try key in positions 1 and 2.

This worked for me. I only had to reset the clock.

* I heard it as I inserted fuse no. 10. I removed them in order 10, 34, 43
and replaced them in the same order; 10, 34, 43. Another forum member
heard the noise when inserting fuse 43.

Last edited by De Sisti; 05-07-2017 at 10:29 AM.
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Old 05-07-2017, 12:29 PM   #42
jaxone
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I had my car dismantled in 10000 pieces all fuses and wires, all components inside the car and so long... so in my case it was indeed the wire from the DME to started shorted to 12V+
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Old 05-07-2017, 06:12 PM   #43
scottjoh
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Quote:
Originally Posted by jaxone View Post
Problem solved.



It was a wire at the starter that was melted together with a +12V permanent.

The wire goes from the starter motor to the engine ECU.



So I guess the problem is the same for you Filipg92.


Wire at the starter shorted to +12V? No. Filipg92's problem his speed and MPG is not that. He came over yesterday and he has no signal on pin 19 and it's not stuck at 12V. His problem looks like a bad DSC module.
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Old 05-07-2017, 06:15 PM   #44
jaxone
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Well, the same symptoms like mine ... no MPG and no Speed in the cluster.
And in my case it was the wire that comes from the DME to the starter that was melted to 12V.
In the wiring diagram is a Black/Yellow, in my car was actually a black/green. Just check it, won't cost you anything
This wire must have 12V upon start up and then should drop to 0 after engine starts.

As soon as I isolated that wire, everything went back to normal.

Btw, how did you meassure "no signal" on wire 19 ?
This DSC modules are pretty hard to fry ! They are well built not like the fragile ASC modules in the E39. Own both type of cars and the ABS module in my E39 was toast.

Last edited by jaxone; 05-07-2017 at 06:18 PM.
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Old 05-07-2017, 07:11 PM   #45
scottjoh
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I measured pin 19, the DSC speed output, with a portable oscilloscope. The Bosch DSC5.7 module is notorious for broken wire bond connections from the ceramic substrate to the connector pin.
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Last edited by scottjoh; 05-24-2017 at 08:01 PM.
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Old 05-08-2017, 04:57 AM   #46
jaxone
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Ok, but on my module there is no wire connection. I have a DSC3 ES :


The connector is soldered directly into the PCB of the module.
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Old 05-08-2017, 04:24 PM   #47
Filipg92
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Quote:
Originally Posted by jaxone View Post
Problem solved.

It was a wire at the starter that was melted together with a +12V permanent.
The wire goes from the starter motor to the engine ECU.

So I guess the problem is the same for you Filipg92.
Thats interesting, did you happen to take a pic of this wire??

After meeting with Scott and swapping our clusters, my cluster worked fine on his car, no speedo on my car with his cluster. Tested the #19 wire as well while driving, no signal.

We are thinking at this point that it is bad ABS module output. After doing the cluster swap I now get the infamous 3 lights (DCS,Brake ABS) after start up.

Would love to see exactly what was wrong with yours if you documented at all, glad you got it fixed this weekend!
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Old 05-08-2017, 06:33 PM   #48
jaxone
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If you look on this photo here, it is the "black / yellow" wire (in my car was black / green ) that was bent and was short circuited with the positive lead:



Did you tried his cluster in your car ?
The thing that happens is that the damn LWS (Steering angle sensor) gets transferred the VIN number from the cluster and as soon as you swap clusters and you do not code the right VIN on the LWS again, the DSC will light up.
Might help if you pull cluster connectors out and put them back in, else it would need re coding.
Get someone with a BMW Scanner (PA Soft) to read errors and make the coding if needed.

The most interesting thing in my case was that I connected INPA to the cluster and was reading the speed ... it was reading just fine.
Then while driving I interrupted the wire on pin 19 and INPA ceased to read speed. This is what got me confused .. getting signal from ABS module but cluster not showing it even if I could read speed signal with INPA.

While this wire was shorted with the positive lead on starter, my OBC was not working either, I could not set the clock and some more functions were not working.

Last edited by jaxone; 05-08-2017 at 06:36 PM.
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Old 05-08-2017, 07:05 PM   #49
scottjoh
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Quote:
Originally Posted by Filipg92 View Post
After meeting with Scott and swapping our clusters, my cluster worked fine on his car, no speedo on my car with his cluster. Tested the #19 wire as well while driving, no signal.

We are thinking at this point that it is bad ABS module output. After doing the cluster swap I now get the infamous 3 lights (DCS,Brake ABS) after start up.
If you got some time come back over and I'll check it out.

Also watch this short video and read the notes below the video (you need to click the YouTube logo in the lower right corner to be taken watch the video with all the comments, etc.
Basically it says:
Bosch ABS 8E0 614 111B error code
01203 - Electrical Connection between ABS and Instrument Cluster
03-10 - No Signal - Intermittent

This is what I believe is going on in your car.


Last edited by scottjoh; 05-08-2017 at 07:16 PM.
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Old 05-09-2017, 01:23 AM   #50
jaxone
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Not sure but I think in the case of DSC the PCB looks like this :



The video you point to it shows the ASC unit.
I've open both my ABS/ASC from my E39 and the DSC from my E46 and the DSC from my E46 looks like the one I am pointing to, so no wires.
The only way to find out is to cut the unit open and see
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