[vagrom]

Hello friends, I have a problem with a BMW E90 which had a blow and the rack was changed. When the whole car was repaired, it started and ran and everything was perfect. The problem came when the rack was plugged in and the car stopped working or closing. centralized and it does not start and it does not have kl15 either, we cannot put the icom because it does not have a connection, we have put an elv emulator and without success, we have changed the JBBF and now the locks and window regulators work but nothing else continues without starting and without kl15 , someone has happened to this I am already very lost

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We have checked all the fuses and they are fine none blown we have changed the black relay of the fuse box

[Node]

If by "rack" you mean electric steering rack, then that is connected to 100A fuse F103/F105 (depending on the year) in the rear power distribution box. Have you checked it??? Also does "checked all the fuses" include checking whether there is VOLTAGE on those fuses?

The same rack is also connected to 15WUP line. Have you checked it does not short it to ground???

[vagrom]

hello, good thanks for answering the problem that when the rack was put on, if you plugged it in, the car started perfectly and everything was fine, plugging in the steering rack and the car stopped starting and the central locking stopped working and the car won't start and we don't have kl15 I don't know which fuse you mention, can you guide me, the car is driving me crazy

[Node]

Does the car start (or at least ignition switches on) when you unplug the rack again??? If yes, then your rack is shorting 15WUP line. If no, you need to check whether 15WUP line is NOT shorted anywhere else, like IBS (which usually is the main suspect in that).

[vagrom]

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Does the car start (or at least ignition switches on) when you unplug the rack again??? If yes, then your rack is shorting 15WUP line. If no, you need to check whether 15WUP line is NOT shorted anywhere else, like IBS (which usually is the main suspect in that).

hello mate, if the car gives contact and everything but it does not want to start, since the rack was connected the car stopped starting, they told me something about the ibs I have unplugged it and even so it still does not have kl15 and without starting everything the problem of when connecting the zipper that you recommend me with the ibs theme

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The car already has me very dizzy. I thought it was the damn casing but I don't think because it was the casing it wouldn't give me contact and it wouldn't let the engine move or anything, the thing that in the box when I put the key in makes me a key battery logo something like an icon of the key and the battery but that has never happened to me since all this happened

[vagrom]

Does the car start (or at least ignition switches on) when you unplug the rack again??? If yes, then your rack is shorting 15WUP line. If no, you need to check whether 15WUP line is NOT shorted anywhere else, like IBS (which usually is the main suspect in that).

hello friend, well today we have been looking at the e90 and it turned out to be the JBBF we have put a scrapping one with which we can connect but the diagnosis with ista of the DDE and DSC module are in red we have looked at the engine control unit relays and it is fine we believe that It could be the JBBF as it is from another car which is not the same reference just to discard and buy the one that the e90 has to carry

[Tracshan]

Are you using a diagram to troubleshoot the vehicle, especially to check some those things @Node pointed out?

[4L3X]

You need to order the correct JBBF to go with your vin, if you can get the correct one from a Wrecker you can NCS code it. Check the big Plugs on your Batteryconnector (right place and all connected). The big power terminal behind your JBBF can also be a Problem.

[vagrom]

Are you using a diagram to troubleshoot the vehicle, especially to check some those things @Node pointed out?

Hello, yes we have looked at everything that the colleague has told us but we believe that it is the fault of the JBBF that it is not his car, the reference is most likely not compatible because the motor relays have power but they do not give him the line they are in red and the car still won't start

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We are waiting for a JBBF with the same reference and when it arrives I code it with winkfp and put the frame in if we are lucky.

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You need to order the correct JBBF to go with your vin, if you can get the correct one from a Wrecker you can NCS code it. Check the big Plugs on your Batteryconnector (right place and all connected). The big power terminal behind your JBBF can also be a Problem.

We are waiting for a JBBF with the same reference and when it arrives I code it with winkfp and put the frame in if we are lucky.

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Thank you very much for the help. It's a pleasure to be in a forum with people who help and give possible solutions.

[vagrom]

Hi, good, I have a new query, well, we have already been able to connect with the car but now the problem is, with a JBBF with the same reference that it had in the car and coded with the chassis of the car, the problem is that when connecting with ista d the DDE and DSC control unit are in red, the blue relay that is in the DDE compartment does nothing and we have changed the relay for another and nothing is like there is no current but we have looked with a tester and it arrives but the ECU does not respond, let's go nothing and it does not start, the electronic rack was changed, do you know if that rack has to be coded or something, if you can help me, the car is already crazy

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Are you using a diagram to troubleshoot the vehicle, especially to check some those things @Node pointed out?

Hi, good, I have a new query, well, we have already been able to connect with the car but now the problem is, with a JBBF with the same reference that it had in the car and coded with the chassis of the car, the problem is that when connecting with ista d the DDE and DSC control unit are in red, the blue relay that is in the DDE compartment does nothing and we have changed the relay for another and nothing is like there is no current but we have looked with a tester and it arrives but the ECU does not respond, let's go nothing and it does not start, the electronic rack was changed, do you know if that rack has to be coded or something, if you can help me, the car is already crazy