On Board Computer - No power after swapping Heater Core

[OhioTouring]

I just wrapped up replacing my heater core in my 1992 525i Wagon!!

Not a job I want to do everyday

Anyways, got it all back together and the onboard computer next to the radio is not working now. Any ideas on why, or has anyone seen this before?

Thanks in advance for any clues about this one!

[Paul in NZ]

bulbs ?

[bad_manners_god]

I just wrapped up replacing my heater core in my 1992 525i Wagon!!

Not a job I want to do everyday

Anyways, got it all back together and the onboard computer next to the radio is not working now. Any ideas on why, or has anyone seen this before?

Thanks in advance for any clues about this one!

Make sure it's connected properly, could be out just a bit.

[mikell]

Blown fuse?

[OhioTouring]

Checked the fuses earlier today and they were ok. Will have to take things apart again so I can thoroughly check the connection. Although I did eject it and inserted it again..no dice.

[billy]

The obc loom comes from the top of the dashboard and into the cage for the OBC, could you have severed a wire in replacing the core or perhaps disturbed the plug on the back of the OBC cage resuting it in not making a connection?

What did you remove in order to fit the new core?

[shogun]

Do you mean no power at all?
There is a hiden fuse under the rear seat
http://www.bimmerboard.com/forums/posts/236235/

[OhioTouring]

Do you mean no power at all?
There is a hiden fuse under the rear seat
http://www.bimmerboard.com/forums/posts/236235/

Yes, it appears to be no power at all. Had to get the car ready to get me to the airport tomorrow. I will check this fuse as soon as I get back. I didn't know this one was there.

I did completely disconnect it to get it out of the way so hopefully it's nothing more then a fuse or crappy connection.

[billy]

why would it be a fuse though? it worked before you pulled it appart.

its more likely a loose connection, unless you damaged some wiring then it could be a fuse

[OhioTouring]

why would it be a fuse though? it worked before you pulled it appart.

its more likely a loose connection, unless you damaged some wiring then it could be a fuse

Would it have mattered that I started the car without it connected? I hooked up the heater control panel started the car and checked for leaks before I put everything back together.

I did disconnect the computer and remove the plug from the dash bezel to get everything out of the way.

Since I still have half the dash apart, I will pull things back apart and test the connection. Has to be something simple. I just thought I might have screwed up by removing the thing!!!