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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 07-29-2012, 10:26 AM   #1
captdchu
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Join Date: Feb 2012
Location: florida
Posts: 6
My Ride: z4
DSC error

hello all,

just got the handy dandy bavarian technic cable to try and resolve my DSC issue

my abs/brake/dsc lights all yellow

code reads...

5DF0:
DSC-ECU: ECU-internal: RAM adressing test- error

tried to clear it but it keeps coming back

does this mean my DSC ECU is shot? anyone with any experience?

thanks all
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Old 07-29-2012, 12:12 PM   #2
fth001
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Join Date: Jun 2012
Location: Honolulu
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My Ride: 325i, e36m3, s13
Your DSC hydraulic pump is dead, may it rest it peace. Thats a $1000 dollar repair bill. I think there's a DIY someplace, pretty easy one if you can do brakes.
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Old 07-29-2012, 06:16 PM   #3
captdchu
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ouch! $1000

is the dsc same as the abs?

thanks
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Old 07-30-2012, 12:50 AM   #4
fth001
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The dsc pump is actually a part of the abs. Here is a link for an E90 but its pretty much the same. http://www.e90post.com/forums/showthread.php?t=600491
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Old 08-01-2012, 08:52 AM   #5
captdchu
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Thank you for the response and link... Does not look too difficult... I'm trying to figure out if it's for sure the pump and not the module... Since the code is a ram memory error, any ideas?
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Old 08-02-2012, 01:30 AM   #6
fth001
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Hmmm.... good question, not sure I can help you there. I've done this repair only a few times and I've always replaced the entire unit.
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Old 08-03-2012, 02:59 PM   #7
captdchu
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was thinking just to replace the whole unit as well

did you have to have the module programmed? where did you get the parts from?

thanks
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Old 08-04-2012, 02:09 AM   #8
fth001
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Location: Honolulu
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Ebay, and yeah you have to get it coded after. Just found a list of error codes and it looks like it would be the pump itself. There are other codes for the control unit so you should be able to just switch the pump and skip the coding part. GL

5DF0
Pump unit
5DF2
Valve / ECU hardware failure
5DF4
Wiring supply voltage < 9 Volt
5DF5
Control unit internal failure
5DF7
Wiring supply voltage > 18 Volt
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Old 08-05-2012, 01:08 PM   #9
captdchu
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cool... thanks for all your help
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