[williamoss]

On new cars under the dash there is a connector to plug a hand held device that can give you a series of codes to determine if something is amiss with you vehicle. Did the 968 have such a plug on it. If so which hand held device do you all have. I would like to get one that possible could be used on my KIA Sedona as well.

William Moss

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[Kim]

Our cars are OBD-1. New cars are OBD-2. The connectors and software are different. I believe that there is a company (their name is listed here on this site, I think that it is Durametric) that makes a system, complete with software, that works on both systems on a laptop. When our cars were new the dealers used something called a Bosch hammer. I expect that few shops have one.

Some codes can be read by the "blink test", which is described on this site, if you have a US car with a "check engine" light. I used it yesterday to determine that I need a new Hall sender.

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[DaveN]

You can build a board if you are handy to read/reset codes. I have done so, that parts are about 20.00 and the software is gratis. Once you meet the dreaded "!" airbag light you will be spurred on [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]

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[baz]

Dave,

After relacing my steering wheel with a MOMO Competion wheel and removing the airbag (3 ohm resistor added) I`m having to continuously have my airbag light reset with the dealer`s "Hammer". I need help. Can you assist with advice as to where I can obtain the board specification, build instructions and any other advice that might assist?

I have tried to obtain/purchase one of these boards before without success so any help will be greatly appreciated.

Baz

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[williamoss]

I went to Goggle and entered the following "Bosch Hammer" electronic diagnostics tool for Porsche and there was a link to Pelicanparts..........The infamous Bosch Hammer (aka KTS301) at work (long with pics ...‎ - Jun 17, 2006

It was an interesting article. After reading this I am now looking at the Durametric unit. But as I do not own a laptop this may be a little expensive. I have a friend who owns a computer repair shop. Perhaps there is a used laptop for sale.

I went to Napa and saw a unit made by a company called Innova. I called them another dead end as their units do not work on 1995 or earlier 968's 944 etc.

William Moss
Tigard OR

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[94SilverCab]

Durametric software + Laptop, is still cheaper than a Bosch hammer, and, in the right hands, more useful too. [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]

Jay

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[Fox944]

Baz, it is wierd that your airbag light keeps coming on. When i swapped my Steering wheel for a Club Sport Wheel, my light came on as well. installed the resistor and re set the light...hasnt come on since. This was done about 1.5 years ago.

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[baz]

Fox944

Yes it `s a bit frustrating as the car can be parked at the end of the day without the warning light on and when started the next morning bingo!

The car sit on a battery charger when not being used and I have often wondered whether this connection could cause a power spike. It is only a 900MA unit so you wouldn`t think so. Have you had cause to disconnect your battery over the 1.5 year period?

The light is on now so I think I`ll go back to square one, check out the wiring and replace the resistor and have it reset but again.

It`s good to hear it should work.

Regards

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[baz]

DaveN

Given my ongoing battle with the air bag warning light I wonder if you could kindly assist by providing me with details of the board/software you have built and how it is used so at least I could reset it myself rather than have the local Porsche Dealer welcome me with "Shall we need the Hammer today Sir?"

I have a copy of a schematic (Rev.2.1 dated May 27, 2004) for a board interface with a ScanTooL but frankly have no idea if this is what is required nor will it work.

Any help to assist the uninformed would be appreciated.

Regards

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[Fox944]

baz, The battery has not been disconected, but has died from sitting over the winter. I used a trickle charger to charge it back up and started the car right up.

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[baz]

Fox944,

Thanks for your input. I`ll just keep chipping away at this until I find the fix. All part of the 968 experience.

Just a quick aside and I`m sure you have already been asked is that a AIR rear spoiler on your car ? Looks good.

Regards

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[Fox944]

Carbon Fiber Front Splitter & Adjustable rear spoiler...both from AIR.

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[unknown4u]

Baz, maybe you read this topic http://www.968forums.com/index.php?showtopic=3684 it gives the answers to most of your questions about the circuitboard.

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[DaveN]

Baz, sorry for late reply but I'm out of town working right now. I can help you with guidance in building the board and use of the software if you wish. I have all the docs and a few helpfull URL's that explain the process of use in detail.
A .9 Amp charger certainly shouldn't create such a surge as to trigger your light. I don't know the internal resistance of the airbag but maybe whoever came up with 3 ohms was a little off and you have a picky DME?

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[baz]

DaveN,

When you have time your advice will be appreciated. In the mean time I`m going to change the resistor and check the wiring.

Again thanks for the offer of help.

Regards

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[DaveN]

If you do have your airbag out try to measure the resistance with a good DVM like Fluke. Resistances this low require a quality meter and the resistor may have to be milspec or at least a 5% tolerance.

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[baz]

unknown4u/DaveN

Thanks for the topic reference this has cleared the fog.

I`ll be taking the system down this weekend and I will try to ensure the resistance is correctly established.

At this point I think I have the process worked out but the challenge seems to be building or obtaining the "Andy Witthakey" interface.
If you have a schematic of this interface that I can use to build one or know of one not being used this information would be appreciated.

Thanks for your help.

Regards

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