2000 X5 ODB port not working
 

Hello,

We have a rarely used 2000 x5 that is due for a smog check. The first shop couldn't get any data from the square ODB port under the dashboard and recommended that I drive 100 miles and come back so I did, but he still couldn't read it. He then recommended I tried another smog check nearby so I did, but the 2nd shop couldn't read it either with either of 2 his machines.

I didn't get any hit on this site or others on googles. I did check the fuses for On-board computer (#7), On-board Diagnose II (#14, #51), On-board monitor (#7), Cigarette lighter (#25) and they're all good.

Has anyone come across before? Thanks in advance.

On my 06...the OBD II diagnostic plug is powered by 3 fuses...double check the fuse index in the glovebox to see if your 01 uses #52:

• #14 & #51 (OBD II)
• #52 (Diagnosis Plug)

on mine, the Diagnosis plug is shown on both #5 and #52, which i missed. I'll doublecheck in the morning. Thanks!!

Hopefully you pulled, checked the blade to make sure they weren't broken and the correct amperage...then reinserted them.

Good luck. :)

There's also a 20 pins round connector underneath the hood. You can get a 20 pins to 16 pins OBD II cable and most scanners should be able to read any trouble code or readiness info.

Upallnight...great catch. :thumbup: For some reason I was thinking that no e53 got the 20 pin DLC in the engine bay...but you're correct...it was eliminated starting with the 2001 model year (9/00 build date for the e53).

So to the OP...they have a secondary (back-up) connection. In fact, if the 20 pin DLC's lid/cover isn't screwed on correctly it may cause issues (or is that just on the e38?):


Open the hood and check the 20-pin DLC...make sure that the "PAC-man key" that goes down the center is still there. If it's not, the lid may be screwed on incorrectly thus not bridging the pins required for the interior 16-pin DLC to read correctly:

MY2001 with a build date of 10/2000 and I have the 20 pins connector under the hood.

You need to use the 20 pins under the hood if you want to read all the modules in the car. The OBD II connector is just for the OBD II stuff as required by the government.

We were out of town for two weeks and didn't want to deal with this.. until now. I double-checked mine on both Diag (5,52) and ODB II (14,51) and they all looked good :cry:

Attaching the diagram below for mine for someone else reference.

http://i280.photobucket.com/albums/k...psw2tjnjlm.jpg

http://i280.photobucket.com/albums/k...pseu2p20ds.jpg

I guess i'll bite the bullet and bring it in for the dealer to take a look? unfortunately, the shops needs to be able to read the ODB to do the smog check :(

:iagree: I would place money on this. The cap connects the K line pin 17 to pin 2 on the 20 pin DLC connector under the hood that the OBDII 16 pin connector under the dash uses.

https://lh4.googleusercontent.com/F_...AMP-anv_3nC6mQ

Car @ the dealer, $225 to troubleshoot and now the dealer is saying the DME is not commutating with the scanner and they need to program the vehicle for $338.. and any failed modules that needs to be replaced... FML

An uneducated consumer is why BMW dealers are able to stay in business. Did any of the shops used the 20 pins diagnostic port in the engine bay or did they just use the 16 pin OBD II connector under the dash? Or don't you know?

I needed to take the X for its bi-annual smog test and before heading out to the EPA station I used my scanner to verified that there wasn't any DTC present. My scanner couldn't hook up with the DME via the OBD II port so I used my 20 pins port in the engine bay. Scanner was able to communicate with the DME and no trouble codes were present and the readiness were all completed and pass. Brought my cable with me so that the EPA station could hook up their scanner to my car.

Get yourself a 20 pins to 16 pins BMW connector cable and see if a scanner can communicate with the DME. Too much work to do this yourself, than you life is FML.

Did you determine the cause for the 16 pin not communicating? Was it the cap of the 20 pin not positioned correctly or a bad circuit in the cap?

One day I decided to find out what the problem was so I connected a bluetooth scanner to the OBD II and lo and behold the port was working again. Got to hand it to those German to design a car that fix itself. LOL

:rofl: