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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Help ( cant Communicate With Dme) Just Cranks



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      09-20-2018, 12:04 PM   #1
Dreezyjuice08
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Help ( cant Communicate With Dme) Just Cranks

Hello all! Im hoping someone could point me in the right direction regarding my issue.

My car developed a long crank no start issue. I Have tried to connect foxwell, carly, mhd, and INPA to the DME, but all of them fail to connect, so I can't even retrieve codes beyond that.
foxwell was able to read cas errors, (AOB1 AOB2 AOB6 A0B5 A0B4 A0B6)

on the IDRIVE the errors are (ABS, DSC MALFUNCTION, and Fuel pump light
CEL, ABS, low brake fluid, fuel pump inop, transmission Malfunction, TPM sensor resetting, AND service assistance off. )

The guy who upgraded my DME in the past pointed out the pins to test if there was power in the DME. we confirmed it was getting power. I then tried my old DME that i saved and tried to start the car and still get the same errors. My water pump also stays on when the ignition is on, which drains my battery very fast. I have a multi meter but also a novice at checking for wires. could someone point out some wires i could check, or what my best or easiest option would be to fixing all of this? the fuses are also okay.
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      09-25-2018, 12:58 AM   #2
Dreezyjuice08
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      09-29-2018, 05:10 AM   #3
BashShah
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what was the last work you performed?
you sure some or 1 DME PIN is not bend?

and if you are getting Crank, then it's not the starter that's for sure.

The Codes you Pulled seem common on Battery Cable issue and DME shorted.
so is your MDS80 or 81?
who upgraded your DME?

Last resort, tow it to your dealer and pay them the 1 hour diagnostic to figure it out.
I would speak to the shop foreman and advise what you have already done.
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