1. 33 - sensor sidebag left communication error or broken cable :

take off the passenger door card and check the plug going into the airbag to make sure its got a proper connection incase its came loose

2. 24 - seat occupied recognition (communication error - break in seat mat):

fit a bypass module you can buy from ebay for about £10; BMW OCCUPANCY MAT SENSOR AIRBAG BYPASS UNIT PASSENGER E46E36E38E39E60E65M3M5Z3X5 | eBay

3. 8 - ignition circuit 4 -> side airbag left (Remain over limiting value) :

again could be a wiring issue with airbag behind passenger door card

4. 6 - ignition circuit 2 -> passenger belt stronger (Remain over limiting value) :

sounds like a fault with the passenger seatbelt tensioner

 

Looks like a busy Sunday lol. Do you really think both the occupancy sensor AND the tensioner on the same seat could have broke though?

 

The occupancy sensor itself is under the seat but the mat which breaks is in the seat squib and is a thin plactic thing with a circuit loop in it and its this what breaks.

 

well the sensor mat breaks by kneeling/using elbows on the passenger seat. the fault says broken mat so 99% chance you will need a new mat hence the bypass - it will cost you 200-300£ for a new mat fitted.
the seatbelt tensioner could again just be a faulty connector or bad connection. Fit the bypass, check wiring of airbag and tensioner, clear the codes and see what happens!

 

p.s disconnect the negative battery terminal when fiddling with the airbag just incase!!!

 

Will do. And thanks. Will be ordering a bypass asap and stripping the door card tomorrow. Being the wifes car I am getting mote earache than anything else ha ha

 

:lol

 

If you had pa soft 1.4 you could code the mat out completely.Thats what i did.

 

Now you have my attention! Care to elaborate a little

 

Just google XCAR360.COM:thumbsup .Free postage from hongkong and costs not more than the price of a bypass.

 

I have the software now

Will the reader I use for INPA work with this for coding or not? I have the OBD-II Cable which plugs into the adaptor for the 20-Pin connector under the bonnet, so will either of these work or not?

I can get a bypass for less than £6.

 

I dont think inpa can do it,but maybe ncs expert can but if you dont understand ncs then maybe get the bypass as a safer option.

 

I installed the software onto my laptop last night (dual boot Win7 and XP) so will test with my current cables. But something in the back of my head says I am going to need another module between both cables to be able to code :/

 

If you code the mat out does that mean the passenger airbag always fires or does this disable the airbag system altogether? The bypass I used makes the car think the seat is always occupied so will always fire the passenger airbag in the event of an accident.

 

Yes it will fire same as if you had a faulty mat,but by coding it out you get rid of the airbag light on the dash.A live reading in pa soft will show the passenger airbag as active.

 

Hi guys,

I know it has been a few weeks but finally got a bypass fitted to the Seat Occupancy Sensor and the fault for that has now gone thankfully.

I need to take the door card off now and test the tensioner connector. Is it true that a 3ohm resistor put across the terminals will confirm if the cable is duff or not?

I am assuming the resistor plugs into the connector not the tensioner and if the code goes it is the unit but if it remains it is the cable but is this correct?