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Alan Harrison
New User
Username: alanharrison

Post Number: 4
Registered: 6-2016
Posted on Wednesday, 28 September, 2016 - 00:09:   Edit PostDelete PostView Post/Check IP

Hi guy's.

Ive got a 1993 Bentley Brooklands and after swapping some relays about, I have an airbag light on.

Ive been working on a patch lead for the mastercheck socket (to allow me to plug in a standard OBD scan tool) I currently have the engine diagnostics working but looking to reset my airbag light.

Has anyone managed to read the airbag faults with a standard OBD? if so what pin of the mastercheck did you use? the only one that I can see is pin P.

If not, can anyone please give me any pointers to reset the airbag light?

Many thanks in advance

Ash
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Omar M. Shams
Grand Master
Username: omar

Post Number: 827
Registered: 4-2009
Posted on Wednesday, 28 September, 2016 - 03:05:   Edit PostDelete PostView Post/Check IP

Dear Ash,
I have two cars with the same problem - both are 1996 cars and they are both American spec cars. They consequently have OBD II sockets and I am able to connect my OBD II reader - but with no luck. The air bag system is not connected to the OBD II socket.
I am tired of driving these cars with the red air bag lights on. Soon I will have my third car on the road which also has the same issue. The majority of the cars that i drive are pre air bag era cars and therefore i have no problems driving a car that has a disabled air bag. There is no statutory requirment for me to have a functional air bag.
I have spoken to the one of the RR/Bentley independent specialists here and he has advised me that he is unable to get the light to die. He has taken the air bag module out of a car and noticed that it is a Siemens device. We would love to send these units to anyone who can return them with a disabled warning light - but there is nobody who we know who can do this for us. We have tried to run the cars without the Siemens box but the cars simply dont start when the box is disconnected. The specialist tells me that the Siemens box has a countdown timer that triggers the warning light and that they can be tricked into being reset - but we dont know how to do this.

Oh what I would give to drive these cars without the red air bag lights.....
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Vladimir Ivanovich Kirillov
Grand Master
Username: soviet

Post Number: 600
Registered: 2-2013
Posted on Wednesday, 28 September, 2016 - 04:49:   Edit PostDelete PostView Post/Check IP

Air bags - such a noble concept. Beware jetsetters for danger is lurking. I have heard rumours that airbags have not only killed a number of kiddies but have also killed a number of mechanics.

I don't have the answer to your problems but can say that there is a part called a clock spring in the steering column that is often replaced here in many different models. Pull the battery terminals off before attempting work on the steering column looking for this monster.

Hopefully, Paul Yorke who has given many learned contributions to this forum has the answer.

Personally if I had your cars with all the lovely red lights for the engine management system, abs. Asr airbag etc etc I would be removing all those idiot lights just for piece of mind and driving the car till it stopped. The airbag would be removed too but I'm a naughty lad with no hope of changing. But hopefully this thread will produce a more sophisticated solution.
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Omar M. Shams
Grand Master
Username: omar

Post Number: 830
Registered: 4-2009
Posted on Wednesday, 28 September, 2016 - 05:21:   Edit PostDelete PostView Post/Check IP

Dear Vladimir,
stuff sophisticated mate - I simply want the red lights out. If I have to cut wires or butcher any aspect of the air bag system I am happy to do it. I buy these cars to give me pleasure - no other reason. I don't buy them so I can preserve them for the next custodian - They are my toys for me to enjoy. The red lights detract from the enjoyment so they have to go at any cost.
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Vladimir Ivanovich Kirillov
Grand Master
Username: soviet

Post Number: 601
Registered: 2-2013
Posted on Wednesday, 28 September, 2016 - 06:28:   Edit PostDelete PostView Post/Check IP

Good golly gosh Omar, you really are a bad influence on me.

Could you please send me your correct phone number zzzzzcobetzzzzz@yahoo.com. I have tried the other numbers and could not get through. You really need a thorough dressing down for a) Not locating that Camargue abandoned in Dubai b) encouraging general scalliwag behaviour c) buying late model things like an Azure d) not buying a Camargue like Bernie's and e) most of all not installing a Soviet Military lathe in your wife's kitchen where we could turn out a few prized items while she provides tea and biscuits. Indeed!

The airbags go off like a bloody shotgun so beware old chap.

Now the esteemed Moderator has pointed out a central American collection which is a must see and we just have to harass Leno in LA. So after we do Crewe let's go on a trip to the New World collections with a water board and a jar of ether and find out what they know. Don't worry I will drink for you.

Cutting of wires - you brute Sir!!!!!
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Paul Yorke
Grand Master
Username: paul_yorke

Post Number: 1647
Registered: 6-2006
Posted on Wednesday, 28 September, 2016 - 09:28:   Edit PostDelete PostView Post/Check IP

Omar, have you tried the Bentley diagnostics machine on them?

Often it's just a stupid fault that can be rectified easily.

Best regards, Paul.
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Christian S. Hansen
Grand Master
Username: enquiring_mind

Post Number: 383
Registered: 4-2015
Posted on Wednesday, 28 September, 2016 - 09:53:   Edit PostDelete PostView Post/Check IP

Omar...
Field Expedient here:
Have you considered an appropriately cut to shape and applied piece of black plastic electrical tape over the offending light? Easier than removing the light bulb, or cutting of wires no doubt?
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Paul Yorke
Grand Master
Username: paul_yorke

Post Number: 1648
Registered: 6-2006
Posted on Wednesday, 28 September, 2016 - 10:08:   Edit PostDelete PostView Post/Check IP

Christian, it's a multi function light unfortunately. . . So tape is a deffinate no no!
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Christian S. Hansen
Grand Master
Username: enquiring_mind

Post Number: 387
Registered: 4-2015
Posted on Wednesday, 28 September, 2016 - 13:27:   Edit PostDelete PostView Post/Check IP

Best laid plans, et cetera...
So, what are the other functions? Are they REALLY needed, as in alerts of immediate importance, or only "alerts" requiring eventual attention. If the later, then one could simply lift the tape occasionally to see if there is anything of interest. Meanwhile, the constantly annoying air bag alert would be obscured. Trade the occasional need to check against the constantly annoying unwanted light? User judgment. Just saying. Omar?
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Omar M. Shams
Grand Master
Username: omar

Post Number: 831
Registered: 4-2009
Posted on Wednesday, 28 September, 2016 - 14:53:   Edit PostDelete PostView Post/Check IP

Dear Christian,
I appreciate your lateral thinking. I welcome any ideas on this matter. Sadly the display screen is a mini TV and it shows all sorts of things like a picture of a key when the door is open and the key is in the ignition. it reads "low mineral oil" when your oil level dips below where it should. It displays Sport mode on the gearbox when you select it - it does a myriad of things and also tells you if you have a gearbox fault or an air bag malfunction or any other warning. Like Paul says - I need it mate.

Dear Paul,
Mastercheck is the only answer other than a pair of snips. We dont have one here in Dubai other than the main dealer. He charges $280 US every time the car sniffs the lead. Any remedial work over and above that is at astronomical rates. If it was a simple reset I would go for it but it may not be. If they come back with change both air bags due to expiry date of explosive charge (like I am sure they will given the 10 year life of these items) then I am back to square one but I have also pissed away hundreds of dollars and a proportion of my remaining life.
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Christian S. Hansen
Grand Master
Username: enquiring_mind

Post Number: 388
Registered: 4-2015
Posted on Wednesday, 28 September, 2016 - 15:11:   Edit PostDelete PostView Post/Check IP

Omar...
Sorry to hear that. When they started putting multi-function mini-TV screens in cars, it was the beginning of the end in terms of user control and repair ability.
You do have my curiosity piqued however. Any chance you can post a photo of the offending screen? Is the airbag alert always in the same portion of the screen, or can it be moved around like a window or icon on your home computer screen?
When computers start running your life, they then start controlling your life. Freedom will end when cars are finally connected to the internet and you have to get permission to move and you have to periodically upgrade your operating system at the risk that "sorry, your functionality is no longer supported". Obsolescence at the whim of the manufacturers under the auspices of the government...for our own good and security, don't you know...
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Christian S. Hansen
Grand Master
Username: enquiring_mind

Post Number: 389
Registered: 4-2015
Posted on Wednesday, 28 September, 2016 - 16:24:   Edit PostDelete PostView Post/Check IP

Omar...
Do you think that you actually touched on the cause of the light? Sensed expiration date of the 10 year activation charge? It would be a simple and logical ability to incorporate a timing device that tells you the expiration of the "use by" date by illuminating the light. When the device is replaced, either the technician "resets" the timing device, or the computer somehow senses that the device has been replaced and automatically resets itself. The critical question, that for liability reasons probably no one will tell you, is how to "fool" the system into resetting the time clock without replacing the activation device. It would be to simple if you could simply unplug it and replug it in as that would encourage an effective circumvention of the design. What they really want you to do is to purchase and install an new activation device. It is a case of "you gotta pay to play" and getting the light to go out is not a matter of "resetting" but rather repurchasing a new component that when installed will efffectively extinguish the light. Is this possible? It sounds logical enough to me...and along the lines of, "this is for your own good".
What do you think?
Computer printers are apparently also like that. They have a built in "counter" and when you get to that number, even if the printer is otherwise perfectly functional, the odds are that eventually you are getting to the end of its functional life and the internal computer simply tells the printer to spot printing. The net result is that you have to go purchase a new printer. Printers are fortunately inexpensive, but while you might think that when you purchase one they are good until they break, in reality they are only good until you get to the predetermined number of copies printed setting and then they stop printing. My hunch is that the air bag system is the same. Purchase a new sensor and the light goes off. Only question is what is THAT going to cost, but RR/B doen't care...after all, the saying is, if you have to ask, you can't afford it!!
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Geoff Wootton
Grand Master
Username: dounraey

Post Number: 1424
Registered: 5-2012
Posted on Wednesday, 28 September, 2016 - 23:57:   Edit PostDelete PostView Post/Check IP

I think Christian's suggestion is a good possibility, given that Omar has 3 cars with the same fault.

Another possibility is depleted batteries on the controller units. Does anyone know if the airbag controller has a battery associated with it, similar to that with the power seats? If so, this could be the cause.

Geoff
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Brian Vogel
Grand Master
Username: guyslp

Post Number: 2074
Registered: 6-2009
Posted on Thursday, 29 September, 2016 - 00:29:   Edit PostDelete PostView Post/Check IP

Geoff,

Christian's idea is an option worth investigating. Another is that one of the airbag switches (I think there are two, but perhaps I'm incorrect on that) that sense when a frontal crash has occurred have gone bad.

I did a lot of digging around several years ago related to these sensor switches when someone had determined that the issue appeared to lie there on his car.

What follows is in the resources file, but might prove helpful on this thread:

For SZ-era cars that have airbags:
The front airbag sensor, original part number UD 70500, has been superseded by UD 74772. The UD 74772 is available from Montague & Company (UK) [see below] as of 12/2010. Montague & Company has since been acquired by Flying Spares, so check with them.
The TRW part number for UD 74772 is 21802 (embossed on metal bracket) [also marked 21802198 in ink on the plastic housing]
---------------------------------------------
The inflators, etc., in an airbag system have a theoretical finite life but I don't think that any of the early systems were quite so "computerized" that they included aging timers as part of them, though I could be mistaken. The problem with all older airbag cars has become that the airbags are no longer even produced for some of them. When you add in the huge, possible years-long, backlog due to the Takata Airbag Recall (and possible bankruptcy) things get even murkier.

My gut tells me that just due to lack of replacement units there are going to have to be changes to laws that require airbag systems to be fully functional in cars over a certain age. Most of these vehicles will live long past the time when replacement parts for airbags for them will be available and I don't see the owners of said vehicles just saying, "Oh, well, the airbag system can't be fixed so I must take the car to the crusher."

On those that use an airbag warning light and in countries that don't mandate functional airbag systems I'd be inclined to simply remove the lamp on my own car (and, of course, reveal same were I to sell it or put the lamp back in before putting it up for sale so potential buyers are not misled). While I think that airbags are a great safety enhancement they are a secondary protection compared to safety belts. I'm not afraid to drive my RR or my Cadillac, neither of which have airbags to begin with, but both of which were produced long after safety belts were mandated.

Brian
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Omar M. Shams
Grand Master
Username: omar

Post Number: 835
Registered: 4-2009
Posted on Thursday, 29 September, 2016 - 02:41:   Edit PostDelete PostView Post/Check IP


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Omar M. Shams
Grand Master
Username: omar

Post Number: 836
Registered: 4-2009
Posted on Thursday, 29 September, 2016 - 02:53:   Edit PostDelete PostView Post/Check IP

Dear Brian,
Great words of wisdom from you as always.
I wish I could just disconnect the light. Impossible. As a group we will be faced with having to figure the system out one day. We will have no choice but to disable the lights in years to come. We all know how easy it is to buy RR363 for the older cars let alone air bag spare parts that are deemed less important as hydraulic fluid.

Dear Christian,
I appreciate your input. The air bag controller does indeed have a timer in it and it is resetable (so I have been told). However my only source of Mastercheck access is the dealer and he will no way reset the timer without me having to buy at least 2 new air bags at the same price as a cockpit from a Concorde.
Soemwhere there is a wire or two that when disconnected or cut will solve this problem to my satisfaction.

In the next few years an air bag model car will come up for sale at a throw-away price and i will buy it to find out just which wires i need to snip to make it all work.
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Vladimir Ivanovich Kirillov
Grand Master
Username: soviet

Post Number: 607
Registered: 2-2013
Posted on Thursday, 29 September, 2016 - 05:03:   Edit PostDelete PostView Post/Check IP

Omar, "$280 every time the car sniffs the lead" - that is literature. What a giggle I got from that.

Christians black tape measure was so Russian as to be disturbing.

I was going to suggest you buy some really black sunglasses but then I thought about you rear ending a Toyota etc.

Has anybody got a wiring diagram. I say this because just maybe we can stop the feed to the tripping device that puts the light on. One problem is some of this code nonsense requires the use of a scan tool to clear the code first to get the light off.

When Snap On first dropped their essential scan tool on the market here the price was $10,000. The Chinese then started to make scan tools and cheap ones that work. The Mad Scot swears by his.

Toyota attempted to restrict the release of info to interpret where to look after reference to the scan tool. Their ploy worked well until they sacked one of their decades long employees and oh dear there was a leak and thereafter general non dealer mechanics could repair the V8 Diesel Land cruisers.

Omar have you thought of buying your own Master check?

I keep telling the directors here stop buying new buses unless the dealer gives you a scantool with the bus. Huge amounts are lost over this.

Let's see if we can solve this caper without Omar going crazy with the side cutters. Chopped wires are so disturbing to look at.
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Christian S. Hansen
Grand Master
Username: enquiring_mind

Post Number: 390
Registered: 4-2015
Posted on Thursday, 29 September, 2016 - 06:12:   Edit PostDelete PostView Post/Check IP

Omar...
Thanks for the photos. Now I understand. Do the various alerts rotate in sequence in that same location?

Vladimir...
Thanks for the comment. Great minds think alike!
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Alan Harrison
New User
Username: alanharrison

Post Number: 6
Registered: 6-2016
Posted on Thursday, 29 September, 2016 - 06:23:   Edit PostDelete PostView Post/Check IP

I'd be interested to see which wires need to be connected to read the faults using a standard obd..

I'm convinced that I can get an obd reader to clear the fault, I know pin p has to be connected, but I think that another pin needs to be connected
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Brian Vogel
Grand Master
Username: guyslp

Post Number: 2076
Registered: 6-2009
Posted on Thursday, 29 September, 2016 - 06:53:   Edit PostDelete PostView Post/Check IP

Omar,

Ah, yes the "Driver's Information Panel" that came in on the later SZs. I saw that you'd mentioned your plight with this car but thought you might have others that predated the DIP.

When it comes to OBD things get quite complicated. The original standard didn't anticipate a number of things that became quite common later. These have been added, but could very well be supplied by pins that are not queried by most standard OBD readers. I've put up some of the basic "Mastercheck to OBD-II" information for the majority of P codes and others that were part of the original standard.

There are definitely OBD readers that can handle ABS and SRS codes for selected makes and models. It might be worth digging in to what pins are actually populated in the OBD ports on those cars and what corresponding pins an ABS-compatible OBD scanner connects to in addition to "the usual suspects" and the same for SRS.

If it turns out that there's no difference in the actual OBD port nor reader connector then that means that other wires that allow the respective ECUs for those functions to be queried must be shared with the pins used for existing interrogation process and it must be the process that differs in terms of "getting the attention" of a given ECU.

Brian
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Brian Vogel
Grand Master
Username: guyslp

Post Number: 2077
Registered: 6-2009
Posted on Thursday, 29 September, 2016 - 09:39:   Edit PostDelete PostView Post/Check IP

Also, just FYI, there are airbag blink codes. If you have IETIS just search on "blink codes" and eventually you'll find them.

I'll attach a couple of documents I have that include information on airbag blink codes.

application/pdfAirbag Blink Codes - Common Examples
Air_Bag_Blink_Codes_Common_Examples.pdf (16.9 k)


application/pdfAirbag Fault Diagnosis Code Table
Air_Bag_Fault_Diagnosis_Code_Table.pdf (17.5 k)


Airbag Wkshop Manual Figure for Blink Code

Also see chapters B10 and B11 of TSD4737 in the SZ area of the Technical Library.
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Omar M. Shams
Grand Master
Username: omar

Post Number: 837
Registered: 4-2009
Posted on Thursday, 29 September, 2016 - 16:56:   Edit PostDelete PostView Post/Check IP

yes the alerts rotate one after the next depending on how many you may have up at any one time. They are also in different colours (red being unacceptable green good).

I often wear dark glasses (lots of sun in Dubai) but that has not resolved my issue with red warning lights.

Russian tape is more enticing that you think.... If I lose hope with a better fix - I will resort to Christian's proposal.

Yes I have considered buying a mastercheck device but man they are not cheap!!

Yes I have IETIS and i have to endure the pain of resetting my computer date every time i use it because even this program has a date issue!! I have to lie to my computer to make it think it is the year 2010 for IETIS to work. If I dont do that, IETIS just does not work.

I am becoming like Vladimir... starting to hate anything computerised.

Thanks Brian for your support. I will relook at the IETIS parts relating to the air bag light.
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Alan Harrison
New User
Username: alanharrison

Post Number: 7
Registered: 6-2016
Posted on Thursday, 29 September, 2016 - 17:28:   Edit PostDelete PostView Post/Check IP

Thanks Brian,

I've tried connecting pin p to an earth as that's what I see as the airbag diagnostic pin, but without any success of blink codes.

Am I connecting the correct pin?

Many thanks in advance
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richard george yeaman
Grand Master
Username: richyrich

Post Number: 632
Registered: 4-2012
Posted on Thursday, 29 September, 2016 - 18:46:   Edit PostDelete PostView Post/Check IP

Alan I had a look in the instruction manual of my Omiscan reader and it gives air bag My 1994 on pin N you could try that.

Richard.
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Alan Harrison
New User
Username: alanharrison

Post Number: 8
Registered: 6-2016
Posted on Thursday, 29 September, 2016 - 18:59:   Edit PostDelete PostView Post/Check IP

Many thanks Richard, ill try it
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Omar M. Shams
Grand Master
Username: omar

Post Number: 839
Registered: 4-2009
Posted on Friday, 30 September, 2016 - 00:51:   Edit PostDelete PostView Post/Check IP

Ok Guys - here is a good question.
I have a reset button in the fusebox of my Japanese spec Turbo R but no such thing for either of the American spec Azure or Continental R. Do the USA Spec cars not have these buttons?
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michael vass
Prolific User
Username: mikebentleyturbo2

Post Number: 226
Registered: 7-2015
Posted on Friday, 30 September, 2016 - 01:59:   Edit PostDelete PostView Post/Check IP

Hi Omar
You have an airbag reset button on a Japanese car?
If so we could just look up a Japanese wiring diagram and see how it's wired in.
Cheers
Mike
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Brian Vogel
Grand Master
Username: guyslp

Post Number: 2078
Registered: 6-2009
Posted on Friday, 30 September, 2016 - 03:20:   Edit PostDelete PostView Post/Check IP

Omar,

Just for clarity, a reset button for what?

Is it a full "erase codes/reset codes" button or more restricted.

Regardless of what it does, IETIS should contain the wiring diagram for cars delivered to Japan and how this is connected into the loom (and, quite likely, how it overlaps with certain Mastercheck wires).

All of what I figured out regarding OBD and Mastercheck was by poring over the wiring diagrams for the cars with an OBD port plus Mastercheck and those without.

Brian
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Omar M. Shams
Grand Master
Username: omar

Post Number: 840
Registered: 4-2009
Posted on Friday, 30 September, 2016 - 03:47:   Edit PostDelete PostView Post/Check IP

the reset button i mean is the one associated with blink codes.


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Alan Harrison
New User
Username: alanharrison

Post Number: 9
Registered: 6-2016
Posted on Friday, 30 September, 2016 - 07:37:   Edit PostDelete PostView Post/Check IP

Omar has a totally different glove compartment than me.. this is mine: https://scontent-lhr3-1.cdninstagram.com/t51.2885-15/e35/13402163_195693077494057_714917353_n.jpg

Also, can anyone please tell me what the yellow knob switch is on the far right (on the steel panel)..

Many thanks
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David Gore
Moderator
Username: david_gore

Post Number: 2231
Registered: 4-2003
Posted on Friday, 30 September, 2016 - 08:41:   Edit PostDelete PostView Post/Check IP

For convenience, here is Alan's fuse board:

Fuse Board
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richard george yeaman
Grand Master
Username: richyrich

Post Number: 634
Registered: 4-2012
Posted on Friday, 30 September, 2016 - 08:51:   Edit PostDelete PostView Post/Check IP

Alan yours is similar to mine but not identical my vin is 60128 I will have a look at mine tomorrow.

Richard.
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gordon le feuvre
Prolific User
Username: triumph

Post Number: 138
Registered: 7-2012
Posted on Friday, 30 September, 2016 - 16:39:   Edit PostDelete PostView Post/Check IP

I think it is potentiometer adjustment for air conditioning? If you look in centre, does it take cross head screw driver, I can't now remember.
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Alan Harrison
New User
Username: alanharrison

Post Number: 10
Registered: 6-2016
Posted on Sunday, 02 October, 2016 - 22:50:   Edit PostDelete PostView Post/Check IP

Just reading up on this some more as I've purchased a delphi ds150 diagnostic kit (hoping that it'd be a little more versatile) and thinking that my 1994 bentley isn't obd compliant.

Can anyone please shed some light on this for me?

Many thanks in advance.

Alan
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Brian Vogel
Grand Master
Username: guyslp

Post Number: 2081
Registered: 6-2009
Posted on Monday, 03 October, 2016 - 01:46:   Edit PostDelete PostView Post/Check IP

Alan,

It almost certainly isn't full OBD-II compliant (which is what most people think of when they think OBD these days) since that standard did not come into effect (and was legally mandated in some markets) until 1996.

Whether it's full OBD-I compliant I do not know. Since the Mastercheck system was proprietary no one seems to be 100% certain on how the querying protocols work. I've attached the Mastercheck to OBD-II pin map I put together for the 1994-95 cars. One of the regulars on rollsroyceforums.com has done an OBD-II port graft on a car from this era and it works for the majority of the codes for the Powertrain. I don't know about any of the transmission codes. I know you post there so do a search. This has come up repeatedly but I can't remember the entirety of what's been said.

[Addendum: In searching my private correspondence I see that the individual I refer to did confirm to me that he has done an OBD-II port graft on a car with the Bosch Motronic ECU and is able to successfully use an OBD-II reader to query it. I do not know what brand/model of reader he uses, as I never asked.]

Brian

application/pdfMastercheck to OBD-II for 1994-95
1994-95_Mastercheck_&OBD-II_Pin_Map.pdf (104.1 k)
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Omar M. Shams
Grand Master
Username: omar

Post Number: 848
Registered: 4-2009
Posted on Thursday, 06 October, 2016 - 02:13:   Edit PostDelete PostView Post/Check IP

Dear Alan,
It has just occurred to me that someone on this forum posted a method of resetting the airbag light using a clever home made wire set up. I am not good at searching but it is in this forum somewhere dated some 4 years ago (ish). I am 90% sure that it was either Richard Treacy or Paul Yorke who came up with this ingenious method of resetting the airbag.

I am writhing from the pain that I will endure next week when I will have to pay big bucks for my car being subjected to a whiff of the mastercheck lead.
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Alan Harrison
Experienced User
Username: alanharrison

Post Number: 11
Registered: 6-2016
Posted on Thursday, 06 October, 2016 - 03:51:   Edit PostDelete PostView Post/Check IP

I've read and tried a reset using the green wire (pin P on the mastercheck) to an earth using a switch.

Switch in closed position, turn ignition on, count to 3 turn off the switch and it supposed to go into a diagnostic mode, but I'm having no luck with this.

I'm coming to the conclusion that I may have a knackered ecu and without the proper kit to diagnose it I'm getting frustrated.

I've even been thinking to sell my car and cut my losses but don't really want to.

I'm just more concerned that it runs out of mot at the end of the month and here in the U.K., the airbag light is a failure.
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Christian S. Hansen
Grand Master
Username: enquiring_mind

Post Number: 394
Registered: 4-2015
Posted on Thursday, 06 October, 2016 - 04:54:   Edit PostDelete PostView Post/Check IP

Have you considered the alternative of taking it to an authorized RR/B service facility to have it diagnosed? Pricey as that may be, they have the proprietary equipment and experience with the car to give you the assist that you need. The way you have put it, you are under the gun presented by your MOT rules, which due to the time element is compromising your alternatives. The Nanny State strikes again.
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richard george yeaman
Grand Master
Username: richyrich

Post Number: 640
Registered: 4-2012
Posted on Thursday, 06 October, 2016 - 07:40:   Edit PostDelete PostView Post/Check IP

Alan I am with Christian on this one bite the bullet, There cant really be anything wrong as the problem was self inflicted while you were swapping relays, The lesson for the rest of us is don't fiddle with relays if you don't know what they do.
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Paul Yorke
Grand Master
Username: paul_yorke

Post Number: 1658
Registered: 6-2006
Posted on Thursday, 06 October, 2016 - 07:59:   Edit PostDelete PostView Post/Check IP

Alan, If it helps I may be in Shrewsbury at some point in the next couple of weeks. Not 100% sure yet but I could bring my diagnostics kit with me if I do.

Or . . . if you fancy a day out in Wales you could come to the workshop and I could do a diagnose and MOT whilst you have lunch / a day in Llandeilo.

Selling it with a short MOT and an airbag light on would be more painful I'm sure!
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richard george yeaman
Grand Master
Username: richyrich

Post Number: 641
Registered: 4-2012
Posted on Thursday, 06 October, 2016 - 08:32:   Edit PostDelete PostView Post/Check IP

Alan Llandeilo is a nice little place, I brought my 1997 Turbo R to Paul in February this Year, I left the car to have steering, Brakes, a full service, Mot and some trac control Ecu work, All in All a very pleasant experience ,As you all know I live in Northern Ireland, Wales isn't just round the corner, Car fixed and Motd one stop.

Richard.
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Alan Harrison
Experienced User
Username: alanharrison

Post Number: 12
Registered: 6-2016
Posted on Friday, 07 October, 2016 - 05:57:   Edit PostDelete PostView Post/Check IP

Paul, Many thanks for the offer, and although I'm very tempted to have a day out but I assume that you're in Llandeilo near to swansea? which would be a heck of a trip out for me as i struggle to get a day off work a the best of times.

As a matter of interest, what do you charge to plug it in and MOT?

Many thanks
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Paul Yorke
Grand Master
Username: paul_yorke

Post Number: 1660
Registered: 6-2006
Posted on Friday, 07 October, 2016 - 06:24:   Edit PostDelete PostView Post/Check IP

Hi Alan, yes, SA18 2LQ.

I charge 55 per hour plus the dreaded.

Mot is 55.

Usually an hour is enough time to read all the systems, clear faults, test drive and read again on an SZ car.

If it comes up as a bad connection somewhere and you wanted me to search for it - whatever time it takes on top.

I'm often about on a Saturday if it helps but MOT slots are tight and they only open until (early) lunchtime so would need a little warning.

Cheers, Paul.
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Paul Yorke
Grand Master
Username: paul_yorke

Post Number: 1661
Registered: 6-2006
Posted on Friday, 07 October, 2016 - 06:27:   Edit PostDelete PostView Post/Check IP

PS, the small adjuster next to the fuse box is for the panel illumination dimmer unit.
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Alan Harrison
Experienced User
Username: alanharrison

Post Number: 13
Registered: 6-2016
Posted on Friday, 07 October, 2016 - 06:29:   Edit PostDelete PostView Post/Check IP

Many thanks Paul, I'll have a look at whats on over the next couple of weeks at work & be in touch.

Thanks again
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Omar M. Shams
Grand Master
Username: omar

Post Number: 1765
Registered: 4-2009
Posted on Wednesday, 19 December, 2018 - 05:42:   Edit PostDelete PostView Post/Check IP

After many years of fighting the air bag light dragon............... victory at last.

I now have a solution albeit a very expensive one.
An expert who knows a lot about electronics introduced a circuit that tells the Display Instrument panel (DIP) that there is an earth signal after 3 seconds of engine start up. That tricks the DIP that all is well. To get this work done I had to sign a waiver to say I am knowingly defeating the air bag warning system. It cost me a packet to get the work done, but i can finally drive my pretty car without that menacing red light.
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richard george yeaman
Grand Master
Username: richyrich

Post Number: 1038
Registered: 4-2012
Posted on Thursday, 20 December, 2018 - 09:04:   Edit PostDelete PostView Post/Check IP

That is great news, did they also say that if you tell anyone they will have to kill you. ha ha ha ha.


Richard.
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Christian S. Hansen
Grand Master
Username: enquiring_mind

Post Number: 1054
Registered: 4-2015
Posted on Thursday, 20 December, 2018 - 10:41:   Edit PostDelete PostView Post/Check IP

Omar...
Since no one else has broached the obvious question, I have to inquire as to the going exchange rate between "packets" and other known currencies. I presume somewhere between "a bundle", and "a veritable fortune", and less than "a King's Ransom"? In any event, no doubt a small price to pay to rid the annoyance!

.
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Brian Vogel
Grand Master
Username: guyslp

Post Number: 2710
Registered: 6-2009
Posted on Friday, 21 December, 2018 - 07:37:   Edit PostDelete PostView Post/Check IP

Omar,

You know that I ask the following out of ignorance, not to goad you: Why not just remove the indicator light?

I'm presuming this may be an issue of a message on the Driver's Information Panel rather than an indicator light, but felt I had to ask just to understand why such effort was actually necessary.

SCRATCH THAT!!: I hadn't reviewed the entire thread again prior to posting this query and now I see the photograph that already answered my question offered long, long ago!

Brian
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Omar M. Shams
Grand Master
Username: omar

Post Number: 1769
Registered: 4-2009
Posted on Monday, 24 December, 2018 - 06:46:   Edit PostDelete PostView Post/Check IP

Yes indeed the price was well worth paying. The car drives so much better without that red light in my face. Perhaps it was a prince's ransom...not quite a kings one.
I did sign up to being shot if I told anyone in public..... but in private...that's another story....

And oh I wish I could have just pulled a bulb out and be done with it. Alas a circuit was required to be fitted and the darn thing now dangles by its wires from the back...not my idea of a neat solution but it works.
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Clay Hollister
Unregistered guest
Posted on Wednesday, 02 January, 2019 - 02:13:   Edit PostDelete PostView Post/Check IP

These have some great info on resetting the air bag.
Note if the system has a real problem the light will not stay reset. http://rrtechnical.info/sz/cs/tsd5069p1.pdf which was a part of the original post here showing how to reset using the programming of the display. and look for tsd5069p2 which details the reset using a jumper to ground for 10 seconds.

(Message approved by david_gore)

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