Hi, my wife was sick and didn't start her car for over a month. When she did start it, the following faults are showing:
ABS, Brake, Engine Service,
Tire pressure system fault, cruise control, air suspension, low brake fluid, dsc not available, transmission fault,, limiter not available, cats system fault. Shifter is locked in park and the car starts. Is there something common that might cause these faults? Please message me if you can help. Thanks

 

First thing I would do it check the battery for charge. Try charging the battery fully and see if the issues go away. If so it may be just a low battery or maybe replace the battery. Do you know how old the battery is?

 

I took the battery out and took it to NAPA to have it tested. I was told that it is a good battery providing 800 amps cold. All of these items just happened after the car was not started for over a month. It starts fine but all of the faults come on after about 10-15 seconds. And the shifter will not move out of park.

 

The battery charger is on the car for the night. I will get a new battery in the morning and see if this works. Everything seems to lead to either a battery or relay issue. There were no issues until my wife didn't start the car for over a month.

 

I had the same problem. Battery is the number one culprit

 

https://www.aaa.com
(for any car left uncharged for a month or so)
What were you expecting?

 

I replaced the battery with a brand new top of the line, but all of the faults are still showing.
ABS, Brake, Engine Service, Tire pressure system fault, cruise control, air suspension, low brake fluid, dsc not available, transmission fault,, limiter not available, cats system fault.
Does anyone have any other ideas? Seems like somehow all of these faults could be related to a single source or relay. If I could get the car out of park then I could get it to the mechanic to get scanned. Thanks

 

You need a Jaguar specific reader, to guide you in where to start

 

If you are confident the battery is OK and fully charged, check fuse F33 (5 amp) in the Cabin Fuse Box for the transmission control.

Graham

 

Hi Graham, I checked the fuses and they are all fine. No bad fuses in the cabin. Any other ideas?

 

Have you tried to get a diagnostic tool that can reset all the codes, and then see if they come back?

Did the car sit outside?

 

Check the shifter cable. There is a bolt that maintains the tension. If the bolt has worked itself free the shifter locks into the ":P" position.

 

No, the car was in the garage the whole time, but not started because she was sick. I was in Afghanistan so I couldn't be home to help her until now.
. I am going to look for a good tester to try to reset the faults. Do you have any recommendations for a reasonable price that works for Jaguar XJ8?
Thanks

 

I use the iCarsoft LR which is Jaguar and Land Rover specific. But I am sure there are cheaper alternatives out there. Hopefully somebody will chime in to help. Also let us know what city you are in, I am sure somebody will swoop in to help. Thanks for your service
Steve

 

Thank you! I am buying the NT624 Elite. It looks like a suitable scanner and hopefully it will solve the faults.
. I am in Auburn, Alabama so if anyone has any ideas how to fix the Jaguar, please give me a shout. Thanks in advance.

 

My 05 XJR sat for a month. Upon leaving the house it did all you say, 3 or more times gauges dropped to zero, then a cascade of faults scrolled across the screen, I stopped to fuel it, and it stuck in park.
(Yanking on the shift lever until it beeped solved that.) Since then I drive it as much as possible which in my case is a couple times a week, and no symptoms. Apparently the voltage range to avoid this is very narrow. There has to be a simple way to keep the battery voltage high enough. I see capacitors in a heat sink box sold as voltage stabilizers, but it would seem to me that would bring the battery down quicker. I may buy a permanently installed battery maintainer & plug the car in when it has to sit

 

Thanks Eric,. I am waiting for my scanner to arrive on Saturday and hopefully I can reset the faults. I have tried to move the shifter normally, but I haven't tried to force it just yet. It might come down to that 😁

 

I like it best when the codes just go away, during driving. I have code readers, a Mac tool one that does nearly everything, and a Panasonic Tough book W/ SDD software, still the car doing itself is best. Here is a clumsy application of how to get it out of park the right way.

 

Yeah I have seen that video. If I can't get things reset tomorrow then I will go that route. Thanks

 

I am still having the following faults:
ABS, Brake, Engine Service, Tire pressure system fault, cruise control, air suspension, low brake fluid, dsc not available, transmission fault,, limiter not available, cats system fault.

Is it possible that the alternator could be causing all of these faults. It is not likely that all of the relays or modules went bad just from not starting the car for a month. Or is there a shared Hall Affect device that could be the issue?
I need some serious Jaguar advice. Thanks