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Roger, BMW Master Tech
Category: BMW
Satisfied Customers: 3040
Experience:  10 yrs. experience as BMW Master Technician, shop foreman and dealer.
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I have a 2005 bmw x5 with the N62 engine, vin number is

Customer Question

Hello experts i have a 2005 bmw x5 with the N62 engine, vin number is ***** anyways i keep getting oxygen sensor codes heater circuit and voltage range performance etc on both banks which is odd, i have already replaced all oxygen sensors and
still have the same problem, i susepct that there is a burnt fuse or a bad relay when i clear the code it comes right back, can someone please provide me with the wiring diagram for this section of the vehicle and also where is the heated oxygen sensor fuse
located i found a burnt fuse on the fuse panel under the cover that one that has 4 screws covering it next to the cabin filter but to the passenger side. i replaced a 30amp fuse but i cant seem to find any other fuses relays thanks in advanced am a technician
so feel free to be technical. lexus diagnostic specialist and master tech thanks
Submitted: 1 year ago.
Category: BMW
Expert:  Steve replied 1 year ago.
Do you get the codes immediately after clearing them?
Customer: replied 1 year ago.
hi steve yes they come back pending as soon as i clear the light could it be a damage wiring harness of something like that does this system share a common ground or power distribution or did i just replaced the wrong fuse. the fuse i replaced was on a sliding block that had some connectors to it i had to un-clip two tabs in order to slide it upwards and it was a 30amp fuse in there.
Expert:  Steve replied 1 year ago.
was the 30amp fuse blown?