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Airbag warning light not coming on - Avensis
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20-02-2013 10:35PM#1
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I wrote above, but will repeat especially for you: If car has no factory fitted airbags, will pass, otherwise (light constantly up or off) will fail.Why is it unfair?
Yep, many think it is a critical safety component, but, in fact, it isn't. For example - even very old (but in good condition) seatbelt will work, if fastened. Nobody can say the same regarding airbags. It will deploy or not.it goes without saying that an airbag is a critical safety component, and if its associated malfunction indicator light fails to illuminate and extinguish properly then its a fail. The airbag is there to protect, so why cry foul if its system is faulty? [...]
Tell me how many car owners follow manufacturer's recommendation to replace airbags every 10 years? Or at least how many knows about that? :P0 -
That's not an unfairness. It's the relative joys of owning a car that does / doesn't have an airbagI wrote above, but will repeat especially for you: If car has no factory fitted airbags, will pass, otherwise (light constantly up or off) will fail.
On what basis do you say that?Yep, many think it is a critical safety component, but, in fact, it isn't.
It certainly won't work if some "Smart electrician can make very simple device" to bodge the bulb in the fashion you mentioned earlier, or for that matter, if one of the gadgets I also mentioned was fitted to rig the circuit.For example - even very old (but in good condition) seatbelt will work, if fastened. Nobody can say the same regarding airbags. It will deploy or not.
They'd know about it pretty quick if it became a legal requirement or necessary to pass an NCT test....in the same way having your airbag system working now is.Tell me how many car owners follow manufacturer's recommendation to replace airbags every 10 years? Or at least how many knows about that? :P
And if you wonder why I'm so het up about airbags, it's because I'm very thankful for having one in a car I got absolutely ploughed in a few years back.0 -
Your opinion against mine. It is NOT FAIR IMO. End of story.That's not an unfairness. It's the relative joys of owning a car that does / doesn't have an airbag
You already quoted my answer, so read once again:On what basis do you say that?
But OK, will try to explain as you probably still don't understand what I mean. Explanation after quote:[...] It will deploy or not. [...]
It certainly does not matter if airbag light bulb is tampered with or not (in terms of OP's situation) - more than likely he just needs to pass the test. The fix mentioned by me will obviously not repair airbags, but will not make them worse either. Also, five years after estimated lifetime of aibags ended, they may be died anyway.It certainly won't work if some "Smart electrician can make very simple device" to bodge the bulb in the fashion you mentioned earlier, or for that matter, if one of the gadgets I also mentioned was fitted to rig the circuit.
Apart from most of car's elements airbags are not something you can check if works without destroying it. The only way to make 100% sure airbag works is to deploy it. Brand new one, or 5, 10, 15, 20 years old, whatever.
I bet it'll never happen.They'd know about it pretty quick if it became a legal requirement or necessary to pass an NCT test
If fitted. :Pin the same way having your airbag system working now is.
That's O.K. - more than likely airbags saved your life.And if you wonder why I'm so het up about airbags, it's because I'm very thankful for having one in a car I got absolutely ploughed in a few years back.
Personally I'd never tamper with any safety related system in my car (and yes, I have airbags in it, and I'm happy I have them even if I don't know if fully operational or not), but this time just tried to find quick solution in this particular case.
Personally (again ) I don't care if anyone gonna have his airbags fully working (theoretically) or not, as this does not affect other road user's safety (unlike breaks, steering, suspension, etc.)
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Now, after all of that slightly offtopic discussion, some more things to check regarding missing light:
- loose connections - a check to be performed, from the bulb, through fuses, ECU, airbags themselves, crash sensors. Clean the connectors, tighten if necessary.
- broken wires - same check as above, so can be performed simultaneously.
- broken fuses, relays - it is unlikely to happen, but possible.
- broken/faulty sensors - not sure how to check them, so no hint here.
- and finally airbags - there's no check to be performed, so replacement is the only option, I'd say.
It is highly recommended to do any of above on disconnected battery (and 5 minutes wait) to avoid accidental blow-up (if airbags are in working condition).
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Fairly random and misleading/unclear checks above-Your opinion against mine. It is NOT FAIR IMO. End of story.
You already quoted my answer, so read once again: But OK, will try to explain as you probably still don't understand what I mean. Explanation after quote:
It certainly does not matter if airbag light bulb is tampered with or not (in terms of OP's situation) - more than likely he just needs to pass the test. The fix mentioned by me will obviously not repair airbags, but will not make them worse either. Also, five years after estimated lifetime of aibags ended, they may be died anyway.
Apart from most of car's elements airbags are not something you can check if works without destroying it. The only way to make 100% sure airbag works is to deploy it. Brand new one, or 5, 10, 15, 20 years old, whatever.
I bet it'll never happen. If fitted. :P
That's O.K. - more than likely airbags saved your life.
Personally I'd never tamper with any safety related system in my car (and yes, I have airbags in it, and I'm happy I have them even if I don't know if fully operational or not), but this time just tried to find quick solution in this particular case.
Personally (again ) I don't care if anyone gonna have his airbags fully working (theoretically) or not, as this does not affect other road user's safety (unlike breaks, steering, suspension, etc.)
============================
Now, after all of that slightly offtopic discussion, some more things to check regarding missing light:
- loose connections - a check to be performed, from the bulb, through fuses, ECU, airbags themselves, crash sensors. Clean the connectors, tighten if necessary.
- broken wires - same check as above, so can be performed simultaneously.
- broken fuses, relays - it is unlikely to happen, but possible.
- broken/faulty sensors - not sure how to check them, so no hint here.
- and finally airbags - there's no check to be performed, so replacement is the only option, I'd say.
It is highly recommended to do any of above on disconnected battery (and 5 minutes wait) to avoid accidental blow-up (if airbags are in working condition).
Easiest check is to bridge pin 4 and 16 of the diagnostic plug and see if the airbag light comes on now with ignition
If your airbag light is not coming on the first check is to make sure the airbag ECU is getting its 2 constant lives, 1 ignition live and 2 good ground points, depending on what you find here depends what you do next, if any wire is reading incorrect here you need to fault trace the power source circuit, if all is good you are more then likely looking at a faulty control unit0 -
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