Friend is picking up cruise not available on screen , has an xkr 12 reg car , I plugged in my icarsoft v11 Jlr scanner picking up loads of codes UO104 , UO100 , UO 140 and loads of B codes . I thought battery , but he uses a ctek every now and then got a reading of 12.2v any ideas guys

 

I would have thought battery as well. I get this if the battery is a bit low.
12.2v is low , so give it a good charge

 

Thanks he has put it on full charge battery charger over nite for 12 hrs I will check in with him tomorrow evening guy called Steve lives across and down 2 from me , I told him to come on here post for himself but said he's not a car guy could I do it for him

 

Any one know were the fuse for cruise control would be located and no . thanks

 

Try the Workshop Manual in the sticky at the top of this Forum.

 

His battery is low, when mine was failing the first thing that went away was cruise control availability, the next thing that dropped out was power steering. With new battery all is well.

 

I got lost Stuart , turns out steve was holding back from me a bit he had his car remapped last week . just found out , he only drove it today and getting loads of fault codes . I dont know if these codes are due to this remap or just battery related . Codes are UO104 cruise module , UO100 lost coms with ecm/pcm . UO140 body control mod , then huge list of B codes 100c, 1a57,b1a54,b1b36,b1009,b1112 guys a doctor he dont know about cars hence me trying to help

 

Thanks mate , all indications point to battery being kaput

 

Nice people him and his wife only trying to help if i can

 

A jaguar owning legend was put to rest it the uk today RIP sir jack he owned jaguars for many years https://www.bbc.co.uk/news/uk-england-tyne-53475667

 

If battery shows less than 12.6 volts across the terminals when charged for twelve hours and checked with a voltmeter, replace the battery.

 

Thanks NB cat will pass that on

 

My first faults with a low battery is usually DSC Not Available and E-Diff Not Available (or something like that).

 

George,
When I had a tune added to my car years ago, in the remap of the ecu the limiter is released. Immediately after that I got the same Cruise Control Not Available warning as well as my Ada[tive Cruise control didn't work. Since I never use either, it hasn't bothered me, although I have considered getting it repaired just so that I know everything works/ I would bet the remap of your friend's car was the cause.

 

Ohh, same systems. Must be the remap . Thing is the car will not pass its MOT (annual road test) with any fault codes on screen

 

Looks like the remap will have to be deleted to restore car , I don't know any other way how to erase the fault from screen

 

FWIW
I had the same problem as George05, and the same solution as jackjohn.
All is well now.
Bob

 

Thanks guys , have just advised Steve to buy a new battery , I took a reading a few mins ago and it was 12.3 v had been on full charge over nite last nite for 12 hrs and battery was only 3 years old he told me , Previous owner had it installed and he had the receipt in service records documents from last owner was £325 from a jaguar dealer . Also advised him on the map , saying if the new battery don't remove warning to go back to them , will update this thread of outcomes

 

No chance of careful application of black marker pen can't mark it as worked on my old x100? Oops sorry forgot it's got an angled cover on the x150

Personally cruise is never a funtion I use, so check with your local MOT place if this would mean a fail?

Typically on fault warnings that cycle on start up if one stays on it's a fail, cruise IIRC isnt one of those. So check if you can pull a fuse for your CC that may.kill the warning lighr...although thinking about it, it then may.thow up another warning.

 

Thanks Mark , I did not know that about Mot rules , hope the new battery works for him , Will post of update probs next week