I've removed my air bag, put a 3.3ohm resistor in the plug but it's not going off.
Help! Got an MOT in half hour!!
Anyone?!
3.3ohm resistor doesn't appear to work. The light still flashes on the dash
If you put the airbag back on, does the light go out? just to prove there's not some other fault.
mine does the same sometimes..
i need to turn the ignition on, wait, then start the engine, then the light goes off.
Has the ECU logged a fault that needs to be cleared?
Would it be a job for your OBD reader?
Quote from: "Fin"Has the ECU logged a fault that needs to be cleared?
Would it be a job for your OBD reader?
Yeah, the blokes at work hooked it up to the diagnostics and found a fault that wouldn't clear...or at least it cleared but reappeared as soon as you turn the ignition off and back on
Could it be to do with the resistor? 3.3ohm is what I'm using
on other cars i used a 39 ohm resistor.
39?!?
I could be wrong but I believe airbag lights (once cycled on, i.e. the car believes the airbag has been deployed) can only be turned off using something like TechStream.
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Most cars if air bag has been disconnected will reset when re connected, it will just store the code.
If airbags have been activated then the airbag ecu locks itself.
Even a code reader will not clear that, it needs to be sent of to be reset.
We have a Autel that reads and resets most things.
How might it think the airbag has gone off? Where did I go wrong?
Could I just disconnect the airbag ecu then?
...anyone? Please?
i think the light stays on when disconnected.
Only one way to find out, disconnect battery leave for 10 mins so system discharged, and try it.
I'd disconnected the battery about a month before I pulled the airbag out, then didn't get reconnected for a good week after the new steering wheel and 3.3ohm resistor was fitted
Strange
I still haven't managed to get this sorted.
Hooked the battery back up, having had it disconnected for the past 4+ months, so I could finish my brakes...airbag light is still on!
Has anyone got any suggestions please?
Does the fact the passenger side airbag is still connected have anything to do with it? Imbalance in signal/resistance perhaps?
Might seem like a silly suggestion but is the obd2 reader still plugged in? The one I have makes the airbag light stay on until removed for some reason. Happens on both my Celica and MR2 so figured it was probably a stupid Toyota thing.
Definitely not..
Any other advice/suggestions?
Definitely a Techstream jobbie mate. Near D1 Customs in Loughborough by any chance?
Alternatively you could try the ELMScan Toyota app with your OBD2 adapter.
That does most of the things Techstream can do.
Depending on your OBD2 adapter you may be able to connect to the airbag ecu
Yup just confirmed that ELMScan Toyota app for android can reset the airbag and abs lights.
..who needs Techstream...
Smashing, will give it a go. Thanks Patrick
Right, borrowed a WiFi obd adapter from my brother. Can you get ELMscan as a freebie or you pay £5 on the PlayStore?
I would have thought £5 for a bit of software that can do all that stuff is a great deal.
Pay for it. it's worth it all day long. The only thing I'll say is that it live/dies on the OBD2 adapter.
My cheap Chinese copy barely connected sporadically and it couldn't connect to the ABS or airbag modules.
So try the freebie first
Revisiting this problem today, and having a go with the wireless obd2 reader.
It returned with;
B0131 Open in P/T Squib R/H circuit
B0136 Open in P/T Squib L/H circuit
Just had a light bulb moment.. Should I have put resistors in the plugs you find under the seats as well as the airbag plug?! *face palm*
Any help would be so gratefully received :( by the end of the day, it also showed a B0101 Open in D Squib Circuit :(
Purchased the full version of ELM scan but no joy...Couldn't erase the code. Starting to think either I've got a duff resistor or I'm doing something wrong..
The connector under the seat only does the seatbelt warning light. No impact on airbag warning.
I have resistorised my drivers airbag and it's been absolutely fine since day one. Passenger airbag remains, and I don't have the seat plug connected. I can only suggest you re-check your placement of the resistor in the steering wheel plug and cycle the power.
Joe, what resistor do you have? Is it 3.3ohm or a 2amp fuse? Research is [confusingly] pointing me in both directions
Resistance is measured in Ohms so I would plump for 3.3 Ohms if i was choosing!
It was supplied with the Momo Boss kit so I'm not sure of resistance.
The ones you see on Ebay appear to have a 2 amp fuse and are rated at 2.7-3.3 ohms resistance. It looks like it needs to be about 3 ohms but the car isn't actually that fussy and a range will work.
My local Maplin has run out of 3.3ohm resistors so I'm just looking on eBay.
There are 0.25W, 2W, 1W, 10W....all 3.3ohm...which do I need?!?
OK, this is really starting to piss me off and fry my noodle!
3.3ohm resistor acquired, wired it in, cleared the code with ELMscan and the codes pop back up again?!? What the hell?!?
Someone please put me out my misery and tell me what I'm doing wrong!?
(http://i3.photobucket.com/albums/y73/greenax/Mobile%20Uploads/DSC_0447_zpskdpknunb.jpg) (http://s3.photobucket.com/user/greenax/media/Mobile%20Uploads/DSC_0447_zpskdpknunb.jpg.html)
Quote from: ad_car_08 on April 22, 2018, 19:41
OK, this is really starting to piddle me off and fry my noodle!
3.3ohm resistor acquired, wired it in, cleared the code with ELMscan and the codes pop back up again?!? What the hell?!?
Someone please put me out my misery and tell me what I'm doing wrong!?
(http://i3.photobucket.com/albums/y73/greenax/Mobile%20Uploads/DSC_0447_zpskdpknunb.jpg) (http://s3.photobucket.com/user/greenax/media/Mobile%20Uploads/DSC_0447_zpskdpknunb.jpg.html)
Is the resistor the right way round?
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Quote from: Call the midlife! on April 22, 2018, 20:10
Quote from: ad_car_08 on April 22, 2018, 19:41
OK, this is really starting to piddle me off and fry my noodle!
3.3ohm resistor acquired, wired it in, cleared the code with ELMscan and the codes pop back up again?!? What the hell?!?
Someone please put me out my misery and tell me what I'm doing wrong!?
(http://i3.photobucket.com/albums/y73/greenax/Mobile%20Uploads/DSC_0447_zpskdpknunb.jpg) (http://s3.photobucket.com/user/greenax/media/Mobile%20Uploads/DSC_0447_zpskdpknunb.jpg.html)
Is the resistor the right way round?
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Ignore that sorry, confusing resistance with something else!
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Just a thought - assuming those wires in your pic are from the loom and would attach normally to the steering wheel airbag, then that's definitely not the open circuit.
Those errors refer to airbag sensor and seatbelt pretensioner squib - so maybe the problem is in the seatbelt pretensioner.
Have you done anything to the seatbelts?
Quote from: jonbill on April 22, 2018, 22:00
Just a thought - assuming those wires in your pic are from the loom and would attach normally to the steering wheel airbag, then that's definitely not the open circuit.
Those errors refer to airbag sensor and seatbelt pretensioner squib - so maybe the problem is in the seatbelt pretensioner.
Have you done anything to the seatbelts?
I've removed them! The car is stripped out.
Do I need to stuff a resistor elsewhere too?
Yes I think so - you've got an error code for each seatbelt. There'll be some wiring going to where your pretensioners were - you'll need to join them with a resistor < 1k ohm just like you did the air bag.
I dunno where these pretensioners are, but that's the next problem [emoji3]
Is it a track car?
I'm assuming so as you've stripped the airbags and seat belt pretensioners (new MOT laws and all), so in that case, why bother with resistors? Just undo the ecu light.
Quote from: shnazzle on April 22, 2018, 22:28
Is it a track car?
I'm assuming so as you've stripped the airbags and seat belt pretensioners (new MOT laws and all), so in that case, why bother with resistors? Just undo the ecu light.
I thought the resistor would be quicker and less invasive. The less I bugger with the electrics, the less chance I'll have problems. Thats my theory anyway! :lol:
Quote from: jonbill on April 22, 2018, 22:26
Yes I think so - you've got an error code for each seatbelt. There'll be some wiring going to where your pretensioners were - you'll need to join them with a resistor < 1k ohm just like you did the air bag.
I dunno where these pretensioners are, but that's the next problem [emoji3]
The pretensioners are explosive charges fitted to the back/side of the seatbelt reels, go off in the event of an accident and take up the slack in the belt. There's a prescribed order in which to remove/refit them safely but if you've left them attached to the reels you're ok.
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Quote from: jonbill on April 22, 2018, 22:26
Yes I think so - you've got an error code for each seatbelt. There'll be some wiring going to where your pretensioners were - you'll need to join them with a resistor < 1k ohm just like you did the air bag.
I dunno where these pretensioners are, but that's the next problem [emoji3]
So same 3.3ohm resistor for airbag should do the job on the pretensioners?
Quote from: Call the midlife! on April 22, 2018, 22:33
Quote from: jonbill on April 22, 2018, 22:26
Yes I think so - you've got an error code for each seatbelt. There'll be some wiring going to where your pretensioners were - you'll need to join them with a resistor < 1k ohm just like you did the air bag.
I dunno where these pretensioners are, but that's the next problem [emoji3]
The pretensioners are explosive charges fitted to the back/side of the seatbelt reels, go off in the event of an accident and take up the slack in the belt. There's a prescribed order in which to remove/refit them safely but if you've left them attached to the reels you're ok.
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Ah....see I just unplugged them after the battery was disconnected for over a month and unbolted the reels from the car and chucked them in the skip...
Quote from: ad_car_08 on April 22, 2018, 22:36
Quote from: jonbill on April 22, 2018, 22:26
Yes I think so - you've got an error code for each seatbelt. There'll be some wiring going to where your pretensioners were - you'll need to join them with a resistor < 1k ohm just like you did the air bag.
I dunno where these pretensioners are, but that's the next problem [emoji3]
So same 3.3ohm resistor for airbag should do the job on the pretensioners?
I reckon 🤞
Quote from: ad_car_08 on April 22, 2018, 22:42
Quote from: Call the midlife! on April 22, 2018, 22:33
Quote from: jonbill on April 22, 2018, 22:26
Yes I think so - you've got an error code for each seatbelt. There'll be some wiring going to where your pretensioners were - you'll need to join them with a resistor < 1k ohm just like you did the air bag.
I dunno where these pretensioners are, but that's the next problem [emoji3]
The pretensioners are explosive charges fitted to the back/side of the seatbelt reels, go off in the event of an accident and take up the slack in the belt. There's a prescribed order in which to remove/refit them safely but if you've left them attached to the reels you're ok.
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Ah....see I just unplugged them after the battery was disconnected for over a month and unbolted the reels from the car and chucked them in the skip...
Yeah, explosives in the skip, what could possibly go wrong?[emoji23][emoji23][emoji23]
I'm getting flashbacks to "Four Lions".
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....I actually love you guys!!! Thank you so much for your help/advice!!
Note to all... 3.3ohm resistor in the airbag plug, and 1 in both LH and RH seatbelt plugs extinguishes the flashing red airbag light on the dash!! :D 8)
I bet thats a relief!