Car: 01 525it
My FOXWELL NT520 Pro Scanner can't communicate with any of the modules. I can read the engine dme and tranny module but I get a communication error when trying to access the LKM for example. I have a feeling this is because one or more modules have crapped out but wanted to confirm my suspicion. A possible suspect is the memory seat function which doesn't work. So I pulled the memory switch only to find it disconnected with the connector not visible in the door cavity. I'll pull the door panel off this weekend to have a look-see.
I'm waiting on cables to be able to use INPA so I can verify it is indeed a communication failure.
TIA
Last edited by demetk; 01-15-2019 at 08:15 PM. Reason: car info added
demet
Is this the '01 525i ? have you verified that your scanner's connector has pin 7&8 bridged?
Diehard E39 driver.
I'd rather die or take a walk before driving an E60 or any BMW made after Y2K.
"Your momma's so ugly she makes Bangle cars look nice"
I had this same issue. Wound up being a corroded junction on the k line, under the carpet on the driver’s side.
Yes the 01 525it, car info added. This is the scanner I'm using,
I doubt if I can look at the pins on that cable. Are you referring maybe to the KKL VAG-COM 409.1 OBD2 USB Cable that's spec'd for INPA software?
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Thanks for that. Where bouts is this junction? Is the k line wire a certain color?
demet
Check continuity with a VOM
Regarding the electric distribution centers, they're located under the front seats, below carpeting and isolation. It's a good suggestion especially if you know your car could have been flooded or the body plugs under the side splash shields became loose
Enviado desde mi SM-N920G mediante Tapatalk
Diehard E39 driver.
I'd rather die or take a walk before driving an E60 or any BMW made after Y2K.
"Your momma's so ugly she makes Bangle cars look nice"
All good points, thanks.
demet
The OBD2 connector (X19527 in BMW terms) has Pin 7 connected directly to the DME and the DME connects to the AGS. So those two are readable.
Pin 8 of X19527 is a White and Purple wire which goes to X183. X183 lives under the carpet on the drivers side and connects the ABS module, the Steering Angle sensor, and most importantly the Instrument cluster. The instrument cluster (IKE or KOM) converts this bus into the K Line bus.
On my car, and I suspect yours, X183 had crumbled into dust. If it's open you'll have access to the DME and AGS, but nothing else. Pull the dead pedal, yank back the carpet, and take a look.
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Last edited by Rusting; 01-15-2019 at 10:03 PM. Reason: Attaching image
Oh schweet... Somebody who's got the WDS splice numbers and location pic and everything! That is the good stuff. I'll add I doubt the foxwell unit isn't connected on the right terminals since it's a branded BMW specific unit (unlike other generic cheap Chinese cables for instance).
2003 M3CicM6 TiAg
2002 540iT Sport Vortech S/C 6MT LSD TiAg
2008 Audi A3 2.0T DSG (the daily beater)
2014 BMW X1 xDrive28i (wifemobile)
Former:
1985 MB Euro graymarket 300SL
1995.5 Audi S6 Avant (utility/winter billetturbobattlewagen)
^ thanks very much guys. Is that diagram from the TIS? I'm checking it out.
demet
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