Please help me with airbag light on b6 1.8TS Quattro

[superantew]

Hi

After disconnecting battery 6 months ago and then connecting it throwed my airbag light on.

Fault code :01738 Crash sensor for front airbag ; drivers side (g283)

011 - open circuit - mil on


What i´ve tried

Erased code with vcds - didn´t work

Exchange crash sensor OEM bought from audi by gicing them fault code - DIDN`T work 200dollars

the connector looked ok and i couldn´t find any erosion.. altough i didn´t clean with elecricity cleaner?? should i?


Can the sensor g283 that i found in b pillar be thw wrong sensor.. could it be another sensor??? and where is it located??

PLease im in for my early check by the government and it´s need to be fixed asap

/André

[jacobsen]

Check the wires and plug at the sensor for damage

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[old guy]

The G283 sensor is the front crash sensor located beside the driver's side headlight. Swap the G283 with the G284 and see if the code follows to the G284. If it does, replace the sensor. If it doesn't you have a wiring problem.



-A-
G283 - Front airbag crash sensor, driver side
G284 - Front airbag crash sensor, passenger side

-B-
G256- Side airbag crash sensor, rear driver side
G257- Side airbag crash sensor, rear passenger side

-C-
G179 Side airbag crash sensor, driver side
G180 - Side airbag crash sensor, passenger side



For reference the round hose in the bottom of the pic is the upper radiator return hose.

[superantew]

It's the fault code g283

And when giving them the fault code they said b pillar driver side..

So u think it's actually the front airbag sensor??

I've put the whole code in the beginning of my thread.. And i have replaced the b-piööar sensor with no luck..

So im actually pretty confused.. The fault code g283 driver side os that the b-pillar or front by the headlight?

Thx for responses

The G283 sensor is the front crash sensor located beside the driver's side headlight. Swap the G283 with the G284 and see if the code follows to the G284. If it does, replace the sensor. If it doesn't you have a wiring problem.



-A-
G283 - Front airbag crash sensor, driver side
G284 - Front airbag crash sensor, passenger side

-B-
G256- Side airbag crash sensor, rear driver side
G257- Side airbag crash sensor, rear passenger side

-C-
G179 Side airbag crash sensor, driver side
G180 - Side airbag crash sensor, passenger side



For reference the round hose in the bottom of the pic is the upper radiator return hose.

[EuroxS4]

B pillar crash sensor that would indicate you have the problem with the sensor in the floor or the door I believe.Some cars i maybe be thinking of B5 a4 had sensor in the floor for side impact later models should be in the door.However I always always go by the SDS code meaning g283 is the front crash sensor near d/s headlight.It is common for those wires to become frayed and corroded due to water/moisture exposure.

Also G283 is the drivers side crash sensor meaning front behind headlight.This sensor senses front impact and the airbag control module deploys drivers side airbag in steering wheel depending on severity of impact.Remember when the impact occurs your body and or vehicle is moving towards the impact therefore a fast deceleration still send you going forward towards the steering wheel/windshield this is why airbag in the steering wheel deploys.The b pillar sensor is there to detemine severity of side impact and the airbag control module will deploy the side curtain air bag.Long story short each sensor has a job to do sometime airbags are deployed together depending on what the accelerometer inside the airbag control module reads when the impact occurs.

[superantew]

HI all..

first of euroxs4.. there is no crash sensor in the door.. i know because i dissembled it all.. its in the b-pillar

But after all i found the problem..

Appereantly the + cable on front airbag sensor by the headlight is straight off.. so that´s definetly the problem..

altough if the crash sensor gone bad to..

Do anyone know if the sensor in the b pillar is exactly the same as in the front??

can i just resolder the cable and the airbag light dissapears or do i need to erase the dlcs?


Thx Old guy btw for picture of location... Thumbs UP!!

[old guy]

Early Audi A4's (B5) had the sensor in the door. In the B6 the sensor was moved to the B pillar. (Or maybe it's the other way around). But either way I'm pretty sure the front G283 sensor is not interchangeable with the G179 side impact sensor (the one you replaced).

[jacobsen]

Both of my wires broke off of my driver side crash sensor plug. I tried to resolder them but I bumped into them again and they broke off. I couldn't get solder to stick to it..... gave it the college try. I ended up ordering a set of used crash sensors off of eBay for ten bucks that had the plug wires attached with a good foot of wire on them... does anyone sell an after-market plug and wire for this very reason?


If an Audi dealer told you that the 283 sensor goes in the B pillar then I would speak to the service manager and tell them what they told you. All along your issue is the crash sensor beside your driver side headlight. Sounds like they wasted your time and money.

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[superantew]

ok.. do anyone think the sensor actually is broken?
or just solder the wires together and reset the fault codes?

Im good at soldering so that should not be a problem

- - - Updated - - -

what exactly is the fault code number on the front driver side?

I got g283

[old guy]

The fault code that you listed is the code for the front drivers side. Solder the wire and reset the code. If it comes back you can swap the G283 with the G284 sensor. The G283 and G284 sensors are the same. If you then get a code for the G284 position you will need to replace the sensor. If the code stays on the G283 position you still have a wiring problem.

[jacobsen]

The crash sensors are one time use. So if the sensor is bad or if it has ever been triggered there's no way to get it to work again.

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[EuroxS4]

The fault code that you listed is the code for the front drivers side. Solder the wire and reset the code. If it comes back you can swap the G283 with the G284 sensor. The G283 and G284 sensors are the same. If you then get a code for the G284 position you will need to replace the sensor. If the code stays on the G283 position you still have a wiring problem.

I highly doubt the sensor is faulty.Possible yes,but highly unlikely.Repair the wiring make sure you have the wires going to the correct pins on the connector.Otherwise you will still have the light and faults.I am against soldering wires on such systems only because solder changes the resistance of the wire.In a system that's very sensitive I refuse to use solder as a valid repair.I personally prefer 000 979 940.That is the correct butt connector for the repair.

[old guy]

l concur. That's all I use. (butt connectors).

[jacobsen]

In my case I didn't have enough to use a butt connector so I just needed to replace the plug. That's funny I would have thought solder was better than a butt connector.

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[crazyquik22023]

I'm not 100% if this will apply to the fault code that you have, but I know some airbag module faults cannot be cleared with vagcom. You need a vw/audi airbag "specialty" scanner to clear them. I bought one off ebay years ago and I am able to clear airbag faults that cannot be cleared with vagcom. Like I said not sure if this fault is one that falls under one of the faults that cannot be cleared or not. But could very well also be damaged wiring as said above.

[diagnosticator]

The crash sensors are one time use. So if the sensor is bad or if it has ever been triggered there's no way to get it to work again.

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I don't know of any documentation from Audi supporting this assertion. Where did you get this info?

[diagnosticator]

In my case I didn't have enough to use a butt connector so I just needed to replace the plug. That's funny I would have thought solder was better than a butt connector.

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Audi policy prohibits using soldered wiring repairs. Only properly applied crimped connections are allowed. There are several reasons why this is the case. All wiring and connected components must be securely restrained against vibration. If wiring is allowed to move around and vibrate, will eventually cause failure.

[superantew]

Well.. thanks for all the answers..

i´ve bought the right connector and cable for the job from An VAG dealer.. ill make sure to update how it all goes.. no the crash sensor is unlikely damaged cause the wire is just straight off.. and shouyldn´t have triggered

[jacobsen]

I don't know of any documentation from Audi supporting this assertion. Where did you get this info?

I read it on another forum, I've heard this in gossip before too. Properly applied solder shouldn't come lose? But yes improperly bonded solder will fail as it did in my case. Guess I'll get the booty connectors this time around. I did also think solder was better at maintaining continuity.

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[EuroxS4]

I read it on another forum, I've heard this in gossip before too. Properly applied solder shouldn't come lose? But yes improperly bonded solder will fail as it did in my case. Guess I'll get the booty connectors this time around. I did also think solder was better at maintaining continuity.

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I believe seat belt tensioners cannot be reused.They can be reset but not reused.Never heard of one time crash sensors unless there damaged.Sounds to me like someone trying to make money on a bogus untrue statement lol.


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[superantew]

Update for all other people put there to solv same fault code g283 front driver side airbag.

I just resoldered with 1 connector and 2 cables bought from vag dealer.. and made sure to have battery disconnected.

Airbag light is now off¨

altough problebly need to reset fault cause.. the yearly control.. they actually plug in here in sweden to check.

Thanks all

[jacobsen]

Update for all other people put there to solv same fault code g283 front driver side airbag.

I just resoldered with 1 connector and 2 cables bought from vag dealer.. and made sure to have battery disconnected.

Airbag light is now off¨

altough problebly need to reset fault cause.. the yearly control.. they actually plug in here in sweden to check.

Thanks all

Do you have a part number for the replacement part?

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[superantew]

Goddam.. sry threw everything away.. but i know ecs have they yellow cables at their site