BMW x5 e70 4.8i

[deboelduro]

Hello members. I own a 2009 x5 4.8i. The last few months been having nothing but issues with electrical. Started with all 4 cam sensor and crank sensor signals voltage high and after unplugging the battery and checking for shorts i traced the wires that led to the cam sensors and crank sensors to the fuse box on the passenger side glove box fuses # 35,36,42,43 are not getting power with key on. Also My wipers are staying on with key and no display or hvac or lift gate buttons working at all?

[andrewwynn]

IVM is the first culprit with random voltage problem witg v8 that series.

Also one hint you gave is can be ignition switch.

[deboelduro]

Question though. Do the v8s x5 e70’s have a IVM ? I can’t seem to find a diagram or a picture of it for the v8s. I Know the 6cyl have them

[ard]

WAG:


How are your ground straps??? These can rot, create intermittent faults.


Google 'e70 ground straps'... The bond between motor and chassis ....

[deboelduro]

Hey there i just replaced all my ground straps but still no communication with dme ? I found that the dme fuses 35,36,42,43 are not getting power with key on.

[andrewwynn]

He's a hint. On my phone i can't see more than a corner of the wiring diagram at a time.

[deboelduro]

So after finally having some time last weekend to take a second look. I went right to the dme connectors and unplugged them one by one being careful to inspect both the connector and dme pins and boom 💥 found the issue on connector x60003 pin#27 was completely broken off and inside the connector. Pin#27 is the famous crank sensor signal. Thanks guys for the help guys 🙏