Odb issues

[E53_ped]

Hi all new here great little forum. 

 

I have a issue with my 2003 x5 my odb port doesn't seem to be working 100% i have tried a couple of scanners all will power up and get power from port but refuse to connect or read anything . I have a Bluetooth adaptors too same issue. tried the fuses in glovebox all good there . 

Also tried scanners on father's x5 no issues 

 

Any help would be great 

[Greydog]

Morning Peter

Welcome to the Forum

First what year is your Fathers X5 ? Second what OBD Readers are you trying to use? Over the years BMW have used a few different Bus systems as things evolve.

Bear with me here, your E53 uses I-bus as the primary on board control link Ibus with a rudimentary Fibre Optic link was used in the E53 from 1999 to 2006. With the launch of the E70 variant BMW moved to K-bus and MOST fibre optic systems. With evolution of the Range so the Bus systems have changed/updated

The early evolution of I-bus did not like bluetooth OBD coms (Carly for one) also many proprietary OBD readers will only see major control units. Also the correct OBD cable (D-can for the E53) has to be used 

As an old engineer who has a need to know and my hobby has always been my cars I have several different Diagnostic systems for a number of Marques I and family have owned over the years. For my E53 I have BMW 1.4.0 and INPA/ISTA which give full Dealer level diagnostic's plus INPA/ISTA has TIS as part of the suite which gives repair technique and other information. 

Having said that it is possible that a previous Garage/owner has been clumsy and damaged the port. or blown a fuse (I have seen a blown Fuse 1 in the glove box cause issues. So check the glove box fuses.

Good Luck

Dave