Resetting service warning lights

[dennis]

You still haven't quoted a manual that says 30 minutes or anywhere near that.

[dennis]

Just in case you have forgotten the OP didn't want to clear the code he wanted to disable it!

Just so you understand that is not the same as clearing the code and running diagnostics.

[MrCheerful]

There is no specific legal requirement for cars used on the road to have an airbag.

[Fredxx]

When was the last time you hooked up your laptop with a ELM327 pod to your car?

[Fredxx]

I don't see any statute being quoted. It must be hiding very well, or you're proving yourself to be utterly dishonest.

[Fredxx]

I have here:

[Fredxx]

Do you have anything constructive to say?

So far, all you have done is prove you know nothing. Can you prove 3-4 volts won't detonate an airbag?

[John Rumm]

I mean its acceptable from a legal PoV (obviously essential from a safety one)

[John Rumm]

If its detecting a fault condition then it should be rendered safe by its control system. (even if the fault is just in the detection system)

[John Rumm]

That's not acceptable for safety critical system. Either it works as intended or its locked out from operation.

It may not be able to fix it, but it can cease doing what is required to keep it active. (the hardware default should be to disable it, like any safety critical system)

[Dave Plowman (News)]

The point is that volts on their own mean nothing. You need some current flow. My guess is an airbag firing mechanism actually takes a fair bit of current. But not something I'm willing to check out myself. ;-)

[Fredxx]

Where with the appropriate knowledge of the device, the current can be derived from the applied voltage.

[Peter Hill]

If you know anyone that likes to put their feet up on the dash make them stop. If the air bag goes off their knee goes though their head.

Don't cross your hands on the steering wheel so your arm is between you and the air bag. If it goes off you break your face.

Even 10 to 2 is claimed to be risky.

Depending on religion (petrolhead wars) this may be worse.

[Peter Hill]

If you remove it you have to remove the whole system including the warning light and it's label (tapped over).

Seat belts can be removed, if you remove the seat as well. May get an advisory on MOT. "xxxx seat belt not tested as not present and no seat". I've put cars though MOT re-test with no interior after taking the carpet out for welding. Just drivers seat and seat belt. Having a seat belt present but no seat is also a fail.

You can weld doors shut if you remove the seat that is accessed by that door. If you have a seat and can't open the door that's a fail as a guy at work found last month on his Aston (£300 for 10 min work, a coffee and a complimentary car wash). It worked the week before but didn't work at the MOT.

I know many people that have removed ABS systems when converting to bigger discs and 4 pot brakes as it firms up the pedal and gives them an effective 1" brake master cylinder instead of the stock 15/16". Has the car become a "dangerous vehicle"? NO.

[MrCheerful]

a pp3 will do it, according to you tube

[dennis]

I haven't had a fault in my cars for 12 years now. But unlike you I can fix stuff down to component level not just the modules they sell in dealers. I used to design high availability systems for a living so I probably know a bit more about these things than you.

Anyway why would I use a laptop when I can use a esp8266 to read the codes if I want to?

[Andy Burns]

It appears the software can reset airbag/SRS warnings on VAG cars (which the software is intended for) but it may be that it can't do the same for 'generic' cars where it only does the more standard OBD functions.

[dennis]

What if the fault is in the disarming/control system? It may be able to detect and report it but not control it.

Its faulty, there is no way the user can know what will happen. Even the mechanics in the garage can't know what will happen until the system has been diagnosed and repaired.

There are even going to be faults that it can't detect and they are the more worrying ones.

[dennis]

Try designing one that can cope with all faults. Its not possible. All you can do is layer systems that check each other but even then its not 100%. They also rely on someone doing the correct thing if a fault is indicated, not just ignoring it.

So you have a fault in the control system and its supposed to stop itself from doing something? Doesn't take much thought to realise that if its faulty it may not be able to do what was intended.

[Fredxx]

That's a 'NO' then.

I can also fix stuff down to component level. But a good staring point will be to use a device to get the fault codes.

An esoteric ESP8266 microcontroller is going to be hard work to extract the codes where a £5 ELM327 can do it in seconds. Perhaps you have nothing better to do with your time, just waiting for your final day rather than assigning value to each day you have left?