Seat Occupancy Issues on 06 X5 E53

Optllizer · #1 06-15-2021, 01:06 AM

Hello, I am new to this forum.

My Car: 06 BMW X5 E53 Facelift model.

Recently, my car showed the SRS Light. I plugged in my PASoft adapter with the paid software and it was telling me my seat occupancy was faulty. So I cleared the codes and coded out the seat recognition.

Once I did that, the SRS Light still was on and I checked the codes but and it was still something to do with the Occupancy Sensor but I coded it out. I saw someone say that I need to unplug the sensor before coding out and well I looked under my passenger seat and there wasn't the normal box I normally find in pictures of the sensor. (Pictures down below)

So I have no clue what to do about this. I do not want to shell out 150$+ for a new sensor because if my car ever gets into an accident that deploys the airbags, it's mostly likely totaled anyway rather spend 150$ on something more important for the car.

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andrewwynn · #2 06-15-2021, 01:12 AM

Everything SRS uses yellow. There are a couple things on the seat tied into SRS including the seatbelt tensioner. I think they all get plugged into the yellow box in your second photo.

If/when my ass detector goes bad o will be buying a bypass adapter. I think you need to code out the seatbelt warning if you don't want to keep the passenger seat belt latched.

Post if you figure out a way to avoid the bypass adapter I was not aware it's possible.

Optllizer · #3 06-15-2021, 01:16 AM

Quote:

Originally Posted by andrewwynn

Everything SRS uses yellow. There are a couple things on the seat tied into SRS including the seatbelt tensioner. I think they all get plugged into the yellow box in your second photo.

If/when my ass detector goes bad o will be buying a bypass adapter. I think you need to code out the seatbelt warning if you don't want to keep the passenger seat belt latched.

Post if you figure out a way to avoid the bypass adapter I was not aware it's possible.

I think my seat belt tensioner is fine. When I go to live data, it detects when the seat belt is plugged and unplugged, also already had the seatbelt warning off when i bought it.

I bought a bypass but I couldn't find the part to plug it into. its just not there like what i saw in every picture and video online.

EDIT: This is the fault codes

71/01 Occupancy Classification System(O3), status implausible

62/21 MRS Seat Occupancy Recognition fault

andrewwynn · #4 06-15-2021, 01:19 AM

What I'm saying is I think all the parts go through the yellow box.

I had thought I noticed when I replaced my seat bottom (due to broken recline motor).

Optllizer · #5 06-15-2021, 01:22 AM

Quote:

Originally Posted by andrewwynn

What I'm saying is I think all the parts go through the yellow box.

I had thought I noticed when I replaced my seat bottom (due to a broken recline motor).

Ah, I'll take a look at that then but whats confusing me is what a lot of people say in other posts.

This is the picture I found online for Seat Occupancy Sensor for e53.

I cant find this thing under my seat.

andrewwynn · #6 06-15-2021, 01:23 AM

Use real oem and your Vin to locate your exact part.

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wpoll · #7 06-15-2021, 02:37 AM

Pretty sure that the sensor control unit (you have the correct unit above, BTW) is mounted well up under the seat - you're not likely going to get it out with the seat bolted into the car.

This is in an E46 but similar to E53...

Optllizer · #8 06-15-2021, 02:42 AM

Quote:

Originally Posted by wpoll

Pretty sure that the sensor control unit (you have the correct unit above, BTW) is mounted well up under the seat - you're not likely going to get it out with the seat bolted into the car.

This is in an E46 but similar to E53...

If u see in the picture below, its not where it is in ur image.