I have just found a comprehensive list of DTCs which pinpoint SRS faults in a comprehensive way.
it says "DTCs are stored in the diagnostic module nonvolatile memory and can be accessed only through the DLC (diagnostic link connector) using PDU."
These codes start B xxxx and do not show on my OBD scanner .
So what equipment do I need to read them?
Thanks in advance

 

The Launch X431 pro mini will read and reset them.

 

At £560 about $700 Its a bit OTT ...anything cheaper do the job ?

 

IDS

maybe the icarsoft lr ii can read them

 

Normally, any code reader that claims compatibility with Jaguar/Land Rover (as opposed to generic OBDII) should be able to read these codes. I have an older Foxwell code reader that covers a lot. FWIW, Foxwell models typically allow you to download several brands as needed. IOW, if you find a cheap Foxwell reader for another model, the JLR download is $60.

FWIW, I believe at least some of these trouble codes also show up as flashing patterns of the airbag light when first power on. Should be a flashing pattern communicating a 2-digit code. These are several threads on this forum dedicated to some of these codes.

If you wanted to take a shot in the dark, it seems that for folks that keep their seat setting as low as it goes, some of the wiring under the seat becomes damaged over time and need some attention. OTOH, it is a semi complex system involving ultrasound occupancy sensors, seat switches, belt buckle switches, and of course electrical requirements for the airbags themselves. Getting a proper code will at least point you in the right direction.

Best of luck, keep us posted.

 

found some of the cheaper readers which claim to read SRS codes so I think thats the way to go,
No code flashes on a 97

IDS got ya... instantaneous dumping sensation or $h1t yes the price was a bit high.

 

Now that you mention it, double check the actual setup for a '97 airbag (electrical diagram). From memory, there is something weird with the wiring of it to the diagnostics connector. I want to say the airbag is a GM part, which uses a different hardware data protocol than the Ford control modules around the car, but unfortunately the spec calls for the same pins to be used in the diagnostics port. Therefore, the Jaguar engineers had to wire the airbag to another (non standard) pair of pins. Try and make sure the code reader you are thinking of getting can handle this. Unfortunately, this could be a tricky situation where IDS with a proper data cable is the only way to go. More research warranted...

 

I have seen that port on the diagram but am not sure where it is..behind the glove box I suspect..
the other way is to work through all the B codes listed and check each out.
Now we all know the other version of IDS !!

 

The diagnostics port is by the hood release pull, sort of by your left knee when in driving position.

There is a great standard obd port description on Wikipedia: OBD-II diagnostic connector

Check figure 19.1 for the 1997 XK data bus layout. An XK8/R uses CAN, SCP and ISO-9141. You can see Jaguar wired the 1997 airbag on its own, wired to a "Manufacturer discretion" pin 3. My guess here is that the 1997 airbag is a "GM" part and uses J1850 VPM, which would normally be wired to pin 2, but pin 2 is already used up by the other J1850 SCP data bus.

The point here is that in order to read the 1997 airbag codes, a reader would have to "know" about this non standard wiring as well as have the built-in "knowledge" of these early airbags. Again, in this particular scenario, it might be best to seek access to IDS and the proper data cable.

Electrical Diagram XK 1997

I am sure there are other options, but nothing super simple comes to mind.

 

Well everything is reversed as mine is right hand drive .I see that SRS diagram in my dreams (nightmares) but it says "Airbag interogation connector " That has 4 pins but where is it and where do you get a reader for it All major problems.
I have found various readers that say XK SRS but when you contact the supplier they say no for a 1997.

PS ...Just found that the 4 pin is a white connector near the SRS module ..so thats behind the glove box

one small step for man ......yes very small.

 

I am told by the supplier that the iCarsoft LR V2.0 (not V11) will read them ..so will let you know . More reasonable at £120. Anyone know different let me know quick . 97 coupe

 

Did you specifically confirm with them that it can read the airbag codes on a 1997 model? It will obviously work on the later models which don't have this extra airbag data line on the DLC.

 

i asked Diagnostic World if it would do SRS on 97 and they said yes. I asked them to check and they said The engineer has again confirmed that the kit is suitable for your vehicle.
There is a wire on the SRS module marked Serial Communication so maybe thats what they are using.
There is a wire from the SRS module to the Data Link Connector which might be jagspeak for the OBD connector

So I am pushing them on the price before I order . If it does not work they will get it back and if they dont refund they will get a court summons ..easy in the UK and could end up paying twice the original price .
The threat usually does not work until the summons arrives then its too late its like a train just keeps going until they settle.

 

If they have confirmed it works then, as you say, you can return it if it doesn't. Presumably it does use that pin 3 on the DLC.

Even without the ability to read the airbags it's still a very useful tool, so it will be interesting to hear how you get on.

 

Just checked the SRS is connected to pin 3......

 

It is. DLC == OBD Connector (SAE J1962)

 

It arrives Monday ..It must read the air bags as at present I have a timer that turns off the warning light after 6 seconds so we pass the roadworthy test

 

Totally frustrating week and totally pi$$$ed off . Yes it did not read the airbag codes. what seems to happen is that the advertising shows it will read SRS/airbag then that aspect is dropped the deeper you go into the blurb.
So the icarsoft LR 2 did not read the Airbag . I contacted the help line and after 4 days still did not have a reply so I had another go at them and got a totally useless reply. Do these people ever read the question ? How did they ever pass exams ? So its gone back for a refund.
Anybody know how to read the airbag codes for a 97 ? One company told me they had nothing that could do it .
what I will do is work through the list of B airbag faults in the paperwork and see what I can find.
.

 

I would imagine that they don't know there is a difference between the early cars and later models for the airbags, so they end up wasting everyone's time.

Is there a local specialist with the proper WDS diagnostic tool you could take it to?

 

Anyone considering purchasing an OBDII scanner from iCarsoft, regardless of model, should keep in mind that they offer absolutely no customer technical support, period. They never have and probably never will. While my i930 has been somewhat useful during the nearly six years I have owned it, I quickly learned never to expect iCarsoft Corporate to even lift a finger to help me....