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bmw e60 dash needles go crazy
10-17-2017, 10:38 PM (This post was last modified: 10-17-2017 10:50 PM by drugowaz.)
Post: #1
bmw e60 dash needles go crazy
hi,i got strange problem. rpm needle intermitent drop on running engine. if drive in road both speed and rp drops down intermitent.but car runs file.

scanned got errors is cluster
A3AD
A3AE

Some kind komunikation errors

error in kgm module
c907 k-can communication fault.
checked trunk for water.all good.
where could be problem?
its hardware or soft bug?

also owner case and said in morning his battery was drained. no start.today he put new batery

What is the difference between professionals and amateurs? Only amateurs panic.
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10-17-2017, 11:56 PM (This post was last modified: 10-17-2017 11:57 PM by ziomal4340.)
Post: #2
RE: bmw e60 dash needles go crazy
Check the connection can as in the schematic

X15003
X15004


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 Thanks given by: drugowaz
10-18-2017, 12:01 AM
Post: #3
RE: bmw e60 dash needles go crazy
try to update kombi software,it seems software calibration.
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10-18-2017, 12:08 AM
Post: #4
RE: bmw e60 dash needles go crazy
pin 6-7 x16 connector?

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10-18-2017, 01:17 AM
Post: #5
RE: bmw e60 dash needles go crazy
Symptoms seem like transposed earth fault check body earth and cluster earth clusters also have self test procedure
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 Thanks given by: drugowaz
10-18-2017, 01:35 AM
Post: #6
RE: bmw e60 dash needles go crazy
But everything else is fine
Why it throws just engine speed messahe fault. No lights on dash. Only those needles drops down.

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10-18-2017, 06:07 AM
Post: #7
RE: bmw e60 dash needles go crazy
ive seen this happen when someone did km correction on e90 and data corrupted. he took it to someone who loaded file from another e90 into cas and all worked fine, but every now and again the needles would go bonkers. no idea if he fixed it
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 Thanks given by: PedroX5
10-18-2017, 06:50 AM
Post: #8
RE: bmw e60 dash needles go crazy
No.earlier all was fine long time. Not the caseSmile

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10-18-2017, 07:55 AM
Post: #9
RE: bmw e60 dash needles go crazy
It would be useful to know if your scan tool live data fails in vehicle and engine speed at the same time as it occurs at cluster maybe check scope pattern of ignition coils and engine position sensor in case you're getting some strange signal effecting cluster also try cluster self-test procedure just to at least eliminate that! look into abs live data regarding communication of vehicle speed from ws sensor
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