[sagostinho]

Hello!

Today my battery died, so I jump started my 2006 E61 525D on the front hood terminals. However it did´t work out at the first try because it came up the ELV lock light and steering wouldn´t unlock. After resetting ELV with Ista-D/Rheingold, the car started, but with plenty of lights on and plenty modules not working (ABS, Airbag, CID, etc).

After and entire afternoon trying to figure out what the problem is, I found out that TERMINAL 15 (KL15) 12v is not present and by that motive, the modules come up with an error: no power supply.

CAS should send signal for KL15 to activate but dont...

Does anyone have experienced this issue?

Thanks in advance.

[Ashraf6119]

Have you checked all the fuses nicely.........? I would check them once again just in case you have not missed any blown fuses.......

[sagostinho]

Have you checked all the fuses nicely.........? I would check them once again just in case you have not missed any blown fuses.......

All the fuses checked twice. All ok.

Btw, I tried to disconnect IBC also but same result

[Darmand]

Hi

Could be blue relay in E-box in engine room.

This have caused strange problem on my car.

Try swapping that

See: https://www.google.dk/webhp?sourceid=chr...ue%20relay

[sagostinho]

PROBLEM SOLVED!!!

In order to help other I will describe what I did:

Following member DARMAND advice I´ve checked the blue relay close to DME Ecu and tested it. It was ok. Then I´ve checked 30g relay also, located on rear fuse box, also OK, after that, since I´m an IT guy and rebooting solves most of the problems... I´ve disconnected and reconnected ALL the plugs on rear fuse box.
After that... ALL is 100% Working!!!!

I know it´s not a proper technical explanation for what happened but it sorted my problem caused by a short circuited IBS followed by a jump start.

Thanks a lot for those that tried to help.