Another Fault Code post

[CapeX5]

Finally got my 03 4.6 engine back together after repairing bent valves and timing job. Bought it as a non runner with some known issues. Engine is running great, no codes at all. But...Have some electrical gremlins. Here are the codes that are coming up. Already fixed the fuel pump issue. F'n mice at the wires on the siphon pump! My symptoms are turn signal indicator not working consistently(but turn signals are working on all 4 corners, radio "BMW" screen comes on and that is all I can get.Can't control screens, volume or anything else. Highbeam indicator will not work when turn indicators are not working. All windows worked the first day I had it running, now nothing. I have done some research with these codes, but curious what all of you think. I have INPA, but find it very wonky to use. Like my Foxwell.

[X5chemist]

The BE code is a biggie. Have you gone deeper into the module menu? Activation menu will give clues if the module or wiring are bad.

[Effduration]

did X5 come with a tow hitch or back-up camera? If so, look for hacked-up (or mouse-chewed) wiring behind carpeted panels in rear.

X5's don't like hacked up wiring.

[Clavurion]

Something is messing up with I-/K-bus. That's why the indicators are not showing on the cluster because info from light module to cluster comes via that bus. If you have any after market stuff installed disconnect them first.

[CapeX5]

Originally Posted by Effduration

did X5 come with a tow hitch or back-up camera? If so, look for hacked-up (or mouse-chewed) wiring behind carpeted panels in rear.

X5's don't like hacked up wiring.

It didn't, but will dig into those compartments in the back to look for a GROM or ??? Will update as we get into the it. Great suggestion.

[CapeX5]

Originally Posted by X5chemist

The BE code is a biggie. Have you gone deeper into the module menu? Activation menu will give clues if the module or wiring are bad.

Good path to start on, exactly what I was looking for. The car has sat in, shall we say, not ideal conditions for a while, so will be on the hunt for rodent damage. Will work on the activation menu as well. Thanks

[CapeX5]

Originally Posted by X5chemist

The BE code is a biggie. Have you gone deeper into the module menu? Activation menu will give clues if the module or wiring are bad.

Chemist, can you explain what those letters, i.e. "BE" mean in the left side of the screen? Have looked and can't find any info

[CapeX5]

Hoping to get some more insight with the more knowledgeable than I! Will try to keep it brief. I have found that when I first start the car, the indicators in the cluster will not operate. Yet the lights are flashing on the outside etc. Also, no ding for key in ignition, radio won't work, etc. Within a few minutes, everything starts to work properly, other than the radio. Main screen comes up, I hear music, buttons work, but no screen images. Same on 2 different GPS radios.
I changed the LCM with a used one. No change, no red dot on mileage. Here are some screen grabs from my Foxwell. I am seeing a voltage supply issue in common. At my battery with car running I am getting 13.5-14 volts. So alternator working, it's a brand new battery. Trying to figure out where to go next.

[Clavurion]

It's still a problem on the I-/K-bus until other proven. The only other thing could be the ignition switch. Have you checked if strange things happen when you activate the vanity mirror on sun visor?

[CapeX5]

Originally Posted by Clavurion

It's still a problem on the I-/K-bus until other proven. The only other thing could be the ignition switch. Have you checked if strange things happen when you activate the vanity mirror on sun visor?

I did mess with the visors, no change in behavior. I can try it some more.
Any suggestions on how to diagnose the I/K bus?
Thanks