So took final posession of the car and there are a number of 'flags' that I need to fix - I have the codes but I don't know what is required to resolve - it may require a Jag specialist or just replacement parts I do have half a clue what I am doing but information from Jaguar manuals on the solutions to codes isn't exactly jumping off the page

RCM B1001-13 Right Hood deployment control Permanent
RCM B1003-13 Left Hood deployment control Permanent
RCM B1004-87 Right Frontal impact classification sensor Permanent

BCM B1D17-87 Battery Backed Sounder Permanent
HVAC B11ED-87 Electric Heater Control Module Permanent

Which parts need to be replaced to get these cleared - I have ordered a pair of Pedestrian Contact Sensors - what else it is hard to find parts lists for this car.

The underbonnet airbags are not deployed and no evidence that they ever have, any clues re the other 'stuff'

 

It's been my (Limited!) experience that if they are marked permanent you can't get rid of them.
Let's hope someone with more SDD knowledge can weigh in because I could be wrong.
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Today I did a full service on the car and whilst poking around I noted that the tops of the airbags under the bonnet, hood to those of US disposition, specifically the plastic that has 'airbag' embossed in it are loose - I could if I felt brave enough remove them, I noticed because one was not on straight - turns out they both aren't and they can be turned. Is this normal I've not had a car with this type of airbag (image below) my XF had the older ones with a metal top.

 

Which car? The last XJ (X351) only had air in the back with conventional struts up front?
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These are part of the pedestrian protection system not suspension - so they are airbags of the explosive variety not the compressed air kind.

 

Oh sorry I have not worked on anything with those. I have read about several complete disasters from this system when it deploys going over a bump or some other non-accident situation.
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Pretty much what happened to this one - don't ever take one of these cars so equipped through a mechanical car wash .... least that's what the previous owner said happened and fixing everything exceeded his budget hence he decided to unload to a different kind of sucker - me.

 

I received the new airbags today and for future reference the plastic covers should very definitely not be loose. When I install the new ones in the next few days I'll delve into the ones on the car currently more detail.

 

Well two down one to go ...

RCM B1001-13 Right Hood deployment control Permanent
RCM B1003-13 Left Hood deployment control Permanent

Fixed by replacing the airbags (I had previously checked the circuit) - some genius (I'd use another word but would get censored for sure) had cut the bags and repackaged them post deployment, did quite a neat job but the clue was in the loose tops, the new airbags there is a single bolt that holds it to the spacer, there are 4 bolts in the spacer that hold it to the car with the unit mounted correctly the text is in line with the front of the car and readable from the front.

There is a wiring fault between the RCM and the crash sensor, probably the same genius that did the airbags has been hacking the wiring about so I've ordered a complete front bumper harness. There is however one piece that I cannot identify and presently it is resisting all attempts to remove - I could do with a part number for this.

 

Your making good progress! That's just they way these type of projects go too. I don't see what your trying to identify in your pictures? You have the harness coming so you found the part number for that right?

It's a shame to see those hack repairs too but that's what happens as these expensive cars age and lose value. Too bad we can't use SDD and program that entire option out of the system. Kind of like the aftermarket engine swap kits that delete all the security stuff from the ECM so you can install it in an older car without all the electronics.

Your repair is the first I have read about an owner fixing it DIY. The one or two other incidents they spent thousands of dollars at a dealer and had no idea what was actually done.

What was the cost of those under hood airbags??
Part numbers for the next guy??
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I do have a harness on the way yes. If you look at my images above the first image shows a connector going to the main underbonnet wiring harness, it then trails down to the bottom connector which is shown in the second image and this connector connects to tbe bumper harness itself which you cannot see in these images. I have failed totally to separate this from the main harness, no amount of levering and friendly persuasion is working, I don't want to damage it until I have a replacement, worst case I will just repair it to my standards but nobody has been able to provide a part number for it - including Jaguar. I

As far as this patch cable goes (can't think of any other name for it) I have struck out in vehicle recyclers also so far - they just hack the harnesses like it takes too much effort to disconnect. An underbonnet harness for an XJL with adaptive headlights is £1800 and you cannot buy a number of the connectors - they aren't even identified as parts unless you burrow into Topix and doing that costs money, even then there's no guarantee you could order the part.

Under bonnet airbags C2D23552 - you sure you want the price - as of 4th January 2023 £447 each + VAT
Spacers C2D26054 £5.11 + VAT (2 required)
Bolts C2Z2916 £2.45 + VAT each (4 required)
Upper impact 'crash' sensor C2D3537 £87.13 + VAT (2 required)
Sensor for the bonnet airbags is C2Z1166 £149.81 + VAT (2 required)
The front bumper harness is C2D40943 £91.82 + VAT

So far I am into the car for around 6 hours labour and at Jaguars £ thats a lot of money - now imagine if you had put a car into Jaguar that has been abused - are they going to look for options or just fire the parts cannon. I'm into the car for over £1600 without labour just for this stupid pedestrian system.

I shall be exploring certain options in SDD because it isn't hard to see how easily these cars can get written off by insurers.

Footnote : For anyone planning on using the numbers above these are for a 2010 car with adaptive headlights, pedestrian protection system, parking sensors and tyre pressure monitoring - Jaguar also include rear camera in the qualification though I don't see the relevance

 

Thanks much for the part numbers and yes the shocking cost of it all.
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All my codes are now officially terminated, the repaired patch harness worked so I no longer have any warnings of any kind about airbags, now I'm putting things back together.

The patch cable in the harness at the front was the problem, it is now functional though I shall be making a new one when the connectors appear from China.

The battery backed sounder is alarm related and I'm not overly fussed so it is still throwing a code, as is the electric heater. I do have a new heater but I'll tackle it when the weather here is a little less hostile.