9855 Resistance, firing circuit, front airbag, left, stage 2 --> which airbag is this?

M

matthijsfh

Member
 Waalre, The Netherlands
Which airbag is this?

9855 Resistance, firing circuit, front airbag, left, stage 2 (E85), or active head restraint, front right (E6x). too high

It's getting worse. Was able to trigger error 2 times by slamming the left door close. Makes me believe it is the door airbag, but other posts point towards the steering wheel airbag. Before I start taking things apart. I'd like to know where to look ;-)

Or it could be the satellite module itself? But the "other" airbag seems to be oke and zero other communication failures.

Greetings Matthijs
 
Resistance too high does often point to connections rather than an issue within a nmodule, so start there with the easier stuff.

If slamming the door does it then could well be the airbag connection itself.
I would also suggest you open up the connector between the door and the A-pillar and check for corroded pins.

Having said that, the 'Stage 2' bit does perhaps imply the steering wheel airbag, as that has two connectors into it.

You need to make sure that all the airbag connectors have the locking clips pushed fully into place as they help to make the circuit.
Has anything been off recently?
 
Hai,

No recent mods / work. It's confusing not to know which airbag it is about. If it is the wheel, there is a slip ring which could be the issue. If it is the door airbag I do not see any weak spots.

But indeed was able to trigger it by slamming the door.
It is probably NOT water as car is in the garage and did not see any rain the lasts months. Just did a lot of rally driving so quite some shaking has happened.

Probably bring it to a workshop as working with the steering wheel is new for me.

Keep you posted.

Greetings Matthijs
 
Yes, the slip ring is another potential area to consider.

Done a bit more reading up and it does seem to point more firmly to the steering wheel airbag.
I temporarily forgot you had LHD which sent me off in the wrong direction. :headbang:
 
enuff_zed said:
Yes, the slip ring is another potential area to consider.

Done a bit more reading up and it does seem to point more firmly to the steering wheel airbag.
I temporarily forgot you had LHD which sent me off in the wrong direction. :headbang:
Click to expand...
I've read the whole thread too (how else will I learn things), and since reading your post here, I distinctly remember thinking to myself, why would slamming the passenger door affect the steering wheel on the opposite side of the car.?

Of course, it wouldn't, because it's the LHD drivers door and the steering wheel is on the left. šŸ™„šŸ™ˆ
 
Some more internet digging.

LHD:
Driver:
* Steering wheel airbag, 2 stages.
* Knee airbag (not in my car)
* Thorax airbag in door

Passenger:
* Dashboard airbag, 2 stages
* Knee airbag just above glove box (not in my car)
* Thorax airbag in door

So I have an issue with the airbag in the steering wheel and the 2nd stage connection.

Grt Matthijs
 
Last edited:
Hi Matthijs,

I have something similar, but different...

9854 Resistance, firing circuit, front airbag, left, stage 2 (E85), or active head restraint, front right (E6x). too low

I also suspect a connector in the steering wheel airbag not seated correctly, or a broken clip in my door airbag, based on:

bigwinn

Thread 'Recurring airbag light- solved'

Evening all

My German is rubbish

Help me understand what this recurring airbag light issue is please?

Stuart

535593AF-8F3A-4D04-B3EE-6F76CB212D3A.jpeg

https://www.e46fanatics.com/threads/whats-going-on-in-my-shop-currently.1256645/?post_id=18589423&nested_view=1&sortby=oldest#post-18589423

I suspect the steering wheel, as the previous owner swapped it at some point for a MFSW. As it is a tatty wheel that needs some TLC, and the cable to make it work needs to installed, Iā€™m planning to swap it soon for a normal wheel I have as a spare. Hopefully that will resolve the issue.

Cheers from a fellow Dutchie!
 
Quick update on the "9855 Resistance, firing circuit...." error.

Had the garage look at it. They fiddled with the pins of the "coil spring" (is that the correct name?) and cleared the code. Ofcourse code came back next day.

So I got myself a new coil spring and a 2nd hand set of cables just to be sure.
Then stalled for 2 months as I did not dare to install and remove the steering wheel.
But turned out to be only a 1 hour job.
Some photos below.
Really not that difficult.

Much cheaper than back to the workshop and have those guys play with the cables again. Just replace the thing.
Used cable set + coil spring were approx 100 Euro.

Greetings Matthijs

20260705_121143.jpg20260705_122256.jpg20260705_121148.jpg
 
You must log in or register to reply here.
Back
Top Bottom