Hello,

It appears my TPS problem may be related to the Body Control Processor module. Can someone tell me where that is located in the car? I cannot seem to find a module location diagram for my 2015 XJL. That would be most handy to have!

Thanks much. Dave

 

Well, it's not the TPS wheel sensors; it appears the body control module is not communicating with a number of other modules. One of the body processor codes is C1D18. Localisation Failed Also, there is a C1A59Right front Frequency Antenna Circuit and C1A57 Left frequency Antenna Circuit. On a number of the other car modules I get this DTC code: U0140 Lost communication with body control module. So I'm wondering if the body processor is bad or it has something involved with the antenna circuit code? I assume the body processor is that thing behind the rear seat. Appears that to replace it the seats have to be removed. Does not sound fun.

 

David, looking up in my service manual, you appear to be correct. The BCM is part of the central junction box which is hidden behind the arm rest of the rear seat. Maybe you simply need to check some fuses to see if one may have blown and it is simply a module that is not powered up that is the cause of your symptoms.