OBD Connector Pins

[[email protected]]

Hello,

I'm dealing with an OBD connector on my car where a couple of pins are unfortunately damaged inside the connector housing. I will most likely need to replace them. Since I am neither a mechanic nor an electrician myself, I have a few questions.

I assume that the battery should be disconnected before attempting this work. But even if the battery is disconnected, is there a chance that the ECU still has some kind of battery backup that could short-circuit if I accidentally mess with the OBD pins?

Where can I order pins that fit my car? I don't know if there are different types for different car brands or if BMW even has different types across model years, etc. My Z4 is from 2012. Does anyone know?

I would really appreciate some help here. Thanks in advance!

 

[B21]

Disconnect battery no wait at least 30 minutes..then the OBD pins will be safe..no risk to the ECU..

You’ll need access to TIS or a qualified car sparky for the pins issue

 

[enuff_zed]

My E89 experience is limited but is the obd port hardwired or can it be unplugged and a new one fitted?

 

[[email protected]]

Disconnect battery no wait at least 30 minutes..then the OBD pins will be safe..no risk to the ECU..

You’ll need access to TIS or a qualified car sparky for the pins issue

Thanks. My idea is just to change one of the pins. Got the tools to get the pin out of the socket. So I just need the parts to make it happen.

 

[[email protected]]

My E89 experience is limited but is the obd port hardwired or can it be unplugged and a new one fitted?

I think its hardwired. But all the pins can be removed out of the OBD port.

 

[B21]

Disconnect battery no wait at least 30 minutes..then the OBD pins will be safe..no risk to the ECU..

You’ll need access to TIS or a qualified car sparky for the pins issue

Thanks. My idea is just to change one of the pins. Got the tools to get the pin out of the socket. So I just need the parts to make it happen.

Look in realOEM it list all pins ..but working out which one..

 

[enuff_zed]

My E89 experience is limited but is the obd port hardwired or can it be unplugged and a new one fitted?

I think its hardwired. But all the pins can be removed out of the OBD port.

Thanks. Just trying to expand my knowledge and the obd port isn’t something you idly mess with just for fun.

 

[Chippie]

Just one point to note, don’t close the boot while the battery is disconnected, it’s good practice to place a towel over the latching points or pass a screwdriver through the lock to engage the hook so that it can’t engage if the boot is inadvertently closed.

 

[[email protected]]

Just one point to note, don’t close the boot while the battery is disconnected, it’s good practice to place a towel over the latching points or pass a screwdriver through the lock to engage the hook so that it can’t engage if the boot is inadvertently closed.

Thanks.
An easy misstake loaded with a lot of trouble.