I have that U1261 code that seems to defy us. Well I may have found some answers to it as this has been a subject many times in the past without many answers to it. I also found a tool to help with the code as a n OB2 scanner will show it but that is it. Instead of me going into detail, I am posting what I have found along with a couple of videos on the tool and its use. As I search out more I will post what I found.

https://www.google.com/search?q=Stan...hrome&ie=UTF-8

https://www.autoserviceworld.com/car...work-problems/

https://www.searchautoparts.com/moto...icate?page=0,1

https://www.google.com/search?q=DLC+...hrome&ie=UTF-8




This should keep you all busy for a bit and as said before if i come across more I will post it here

 

I attach files that I have on generic fault codes, many of which should also be applicable to Jaguars. The links at codes connect to a website which, in most cases, provides detailed info on the code selected. However, in the case of U1261, it only states "SCP (J1850) Single Ended (-) Circuit Failure" and no other details are provided.

 

Jaguar DTC guides show the U1261 as Driver's seat or Driver's door fault on the SCP network.

I did a quick look in my DTC folder on my computer and did not see a specific guide for X308/X100.

 

Hi daverb,

I am attaching the Network DTC Summaries for the 2003 AJ27. According to the manual, here are the definition and possible causes of U1261:





I am also attaching the Electrical Guide, which contains the wiring schematics for the SCP network.

Regarding the OBDII/CAN DLC breakout box, there are far less expensive options than the OTC-branded one. Mine looks and functions like the OTC but cost significantly less.

Cheers,

Don

 

I have that booklet in .pdf but it is not the sedan range. (XK 2003MY)

 

Bob,

Can we assume that the Jaguar definition for the X100/X103 would be the same for the X308?

Don

 

I would guess it might be but the 2003 XK is the 4.2 liter so it does use a different software version. (AJ33?)

 

I have seen them far less also. it is just that one was in the video. I should invest in one and get to know more about using them. Thanks for the other info