Urgent.. Airbag light won't turn off

Started by ad_car_08, April 8, 2017, 09:59

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ad_car_08

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!!
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

ad_car_08

#1
Anyone?!
3.3ohm resistor doesn't appear to work. The light still flashes on the dash
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

jonbill

#2
If you put the airbag back on, does the light go out? just to prove there's not some other fault.

martin_b

#3
mine does the same sometimes..
i need to turn the ignition on, wait, then start the engine, then the light goes off.
"Anyone who is not shocked by the quantum theory has not understood it."  Neils Bohr.. Attributed

Fin

#4
Has the ECU logged a fault that needs to be cleared?
Would it be a job for your OBD reader?
The Sun is out, the sky is blue,
The roof is down on my MR2,
And I\'m grinning, grinning ear to ear!

ad_car_08

#5
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
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

krazysteve

#6
on other cars i used a 39 ohm resistor.
RACING, because football, cricket, rugby and golf only need ONE BALL

ad_car_08

#7
39?!?
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

shnazzle

#8
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.

Sent from my SM-N9005 using Tapatalk
...neutiquam erro.

krazysteve

#9
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.
RACING, because football, cricket, rugby and golf only need ONE BALL

ad_car_08

#10
How might it think the airbag has gone off? Where did I go wrong?

Could I just disconnect the airbag ecu then?
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

ad_car_08

#11
...anyone? Please?
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

krazysteve

#12
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.
RACING, because football, cricket, rugby and golf only need ONE BALL

ad_car_08

#13
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
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

ad_car_08

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? 
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

Ozzy

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.

ad_car_08

[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

ad_car_08

[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

shnazzle

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
...neutiquam erro.

shnazzle

Yup just confirmed that ELMScan Toyota app for android can reset the airbag and abs lights.

..who needs Techstream...
...neutiquam erro.

ad_car_08

Smashing, will give it a go. Thanks Patrick
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

ad_car_08

Right, borrowed a WiFi obd adapter from my brother. Can you get ELMscan as a freebie or you pay £5 on the PlayStore?
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

Carolyn

I would have thought £5 for a bit of software that can do all that stuff is a  great deal.
Perry Byrnes Memorial Award 2016, 2018.  Love this club. 
https://www.mr2roc.org/forum/index.php?topic=63866.0

shnazzle

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
...neutiquam erro.

ad_car_08

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*
[size=85]2004 Sable MR2 Roadster - Track toy
Honda Civic EX 1.0T - Company Car
[/size]

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