21 replies to this topic

[RedGoKart]

Hi, My airbag light has been on since I bought my VX and I've finally bought an ELM323 USB adaptor to reset it. I've tried using freeware programs called wODB and OBD II Logger, neither of which report any error codes present. When I try to reset anyway, I get a click from the engine bay but the light stays on. My questions are: Why is the light on without showing an error code? What sensors on the car trigger this light? I've read posts which suggest loose wiring, but where are the electrical connections I should be looking at? Am I using the most suitable software? Are there any manuals or tutorials available to help me get the most out of the ODB software/information? Many thanks.

[mandarinvx]

I think there was a re-call regarding air bags, might be worth calling the re-call line to see if yours is applicable / in need of work

[SteveA]

You need the proper Tech 2 software. I have a copy but am not sure if it works with ELM323. It deffo doesn't work with my ELM327 (something about managing ports virtually) I think you need a basic PC interface that just supports KWP2000. Am happy to send you the Tech 2 software if you want to give it a try.

[markv]

The tech2 software will not work with ANY elm based interface. The tech2 software needs a direct connection, it does all the communication itself (in the rare cases that it actually does something). The airbag unit is not connected on the same OBD bus as the ECU and immobilizer. For starters you would have to connect the K-line of your elm to the right pin on the OBD connector. I've never tried it with an elm, but if the airbag unit uses someting like kwp2000 you might be able to get some info out of it. Might have to change some addresses around in your queries, but who knows Mark

[RedGoKart]

Thanks for the responses guys and thanks in particular to SteveA for the offer of the TechII software. I've just checked my recalls and they've all been done, so I'm back to square one. Is TechII a Vauxhall specific system, meaning I'll have to go to a Vauxhall dealer to get it reset? If it is i'd better make sure I've checked all the simple faults, so what sensors trigger this light? If loose wiring can be the culprit, where are the electrical connections I should be looking at? Also, if I wanted to use the TechII software, what hardware would I need? Cheers.

Edited by RedGoKart, 11 February 2008 - 11:34 AM.

[markv]

There are two tech2's, well actually 1 real one. The official dealer tool is named tech2. These are quite expensive. Then there is a software package which is called tech 2 but has nothing to do with the dealer tool. You see them often on ebay for a couple of quid. Mark

[RedGoKart]

Cheers Mark. I assume it's not the software one I need?

[Baron Von Scubadaddy]

Oh my god whats going on I've just seen an ad for reprogramming air bag modules at the bottom of this thread I may start a thread about Penis enlargement or buying cheap swiss watches This place has really gone down hill

Edited by Baron Von Scubadaddy, 11 February 2008 - 04:21 PM.

[SteveA]

If loose wiring can be the culprit, where are the electrical connections I should be looking at?

The TIS has full wiring diagrams so you should be able to track it down.

http://www.speedster...gram/Airbag.pdf

It's likely to be the harness between A1 and R1, connector X20. It's worth a check.

Edited by SteveA, 11 February 2008 - 05:05 PM.

[Dunde]

Have anyone had any luck resetting SRS-light with an ELM OBD-reader? Or what do one need to reset the SRS oneself?

[johni]

Hi,

My airbag light has been on since I bought my VX and I've finally bought an ELM323 USB adaptor to reset it. I've tried using freeware programs called wODB and OBD II Logger, neither of which report any error codes present.

When I try to reset anyway, I get a click from the engine bay but the light stays on.

My questions are:

Why is the light on without showing an error code?

What sensors on the car trigger this light? I've read posts which suggest loose wiring, but where are the electrical connections I should be looking at?

Am I using the most suitable software?

Are there any manuals or tutorials available to help me get the most out of the ODB software/information?

Many thanks.

Hi, I had the same problem when I bought my VXT, airbag light on, tried to reset light wouldn't reset!

Problem was with the inertia set belts, they have a sensor to tighten belts in "on impact", once they have been activated that’s it they need replacing. Apparently there is a cheap fix, and that is to solder two resistors in the circuit, one for each side, L/R to fool the system to think all is okay. I have seen post on here, so ask size of resistor and exactly where it can be found. I went for the dear option and had sensor replaced! Still have to reset light once sensor/ resistor fitted.

Hope this helps

[techieboy]

Have anyone had any luck resetting SRS-light with an ELM OBD-reader?

Or what do one need to reset the SRS oneself?

I don't think so. As far as I know only a genuine dealer TECH2 device can communicate with the airbag ECU and reset the warning light (assuming there isn't actually a real problem that needs fixing first).

[johni]

Hi,

My airbag light has been on since I bought my VX and I've finally bought an ELM323 USB adaptor to reset it. I've tried using freeware programs called wODB and OBD II Logger, neither of which report any error codes present.

When I try to reset anyway, I get a click from the engine bay but the light stays on.

My questions are:

Why is the light on without showing an error code?

What sensors on the car trigger this light? I've read posts which suggest loose wiring, but where are the electrical connections I should be looking at?

Am I using the most suitable software?

Are there any manuals or tutorials available to help me get the most out of the ODB software/information?

Many thanks.

Hi, I had the same problem when I bought my VXT, airbag light on, tried to reset light wouldn't reset!

Problem was with the inertia set belts, they have a sensor to tighten belts in "on impact", once they have been activated that’s it they need replacing. Apparently there is a cheap fix, and that is to solder two resistors in the circuit, one for each side, L/R to fool the system to think all is okay. I have seen post on here, so ask size of resistor and exactly where it can be found. I went for the dear option and had sensor replaced! Still have to reset light once sensor/ resistor fitted.

Hope this helps

[Yellow_or_black?]

Problem was with the inertia set belts, they have a sensor to tighten belts in "on impact", once they have been activated that’s it they need replacing

I don't get that - my seat belts have locked several times, so what's the difference between locking then and as a result of a major impact? Can't be any surely. So how come my airbag light isn't on?

Edited by Yellow_or_black?, 30 March 2009 - 10:12 PM.

[techieboy]

Problem was with the inertia set belts, they have a sensor to tighten belts in "on impact", once they have been activated that’s it they need replacing

I don't get that - my seat belts have locked several times, so what's the difference between locking then and as a result of a major impact? Can't be any. So how come my airbag light isn't on?

The inertia locking bit is separate and is designed to lock and then obviously release in normal driving. In the event of an accident the seatbelt pre-tensioners actually tighten the seat belt and pull you back into the seat automatically, as soon as the impact sensor senses a heavy enough impact.

[Yellow_or_black?]

Ohhhh Where is the impact sensor?

[John Faulkner]

Ohhhh Where is the impact sensor?

i think its build into the airbag module, which is likely to be under the dash.

john

edit: think this is probably it, although i may be wrong. http://www.speedster...unit/index.html

edit again!: this will probably also be linked into the system some way through the ECU http://www.speedster...pump/index.html

Edited by John Faulkner, 30 March 2009 - 10:27 PM.

[aron916]

I have the same problem, but im 99% sure it is down to me re-connecting the battery when the airbag was not connected! I need a tech2 now to clear the code/light. Anyone got any ideas how much Vauxhall would charge me for this?

[John Faulkner]

I have the same problem, but im 99% sure it is down to me re-connecting the battery when the airbag was not connected! I need a tech2 now to clear the code/light.
Anyone got any ideas how much Vauxhall would charge me for this?

i think your right! mine is on due to me turning in the ignition with it disconnected! thing is i know better

[Stefan_A]

Due to some poor soldering of a resistor, my own fault, when removing the airbag my lamp went on as well. Anyhow, thanks to Raven I've now found a solution that doesn't involve Opel/Vauxhall! Bought a cheap chinese interface at eBay, like >This<. Costed me USD 38.99 incl. shipping from China. There were no instructions included, nor any setup program. So couldn't get it to work initially. But after doing some search for OP-COM I managed to find both a firmware upgrade from 1.12 to 1.18 as well as a later SW dated 080114. Selecting VX220 2002 enables you then to clear airbag faults (and turning off the lamp). For some reason the airbag is not included if you select VX220 2001.