Does anyone have any idea what color the cables are in the "twisted pair" that is the CanBus wiring? Also, at each end of the "twisted pair" there is a resistor, where would the resisters be physically located?
The ABS / DSC fault randomly shows up and my ODBII scanner is showing a CanBus fault.

 

The electrical guide will have all the info.(S2003_XK8.pdf)

 

And where will I find this guide?

 

There may be a link in the sticky threads above, or Gus has them at jagrepair.com

 

Hi,
The 2003 EG is here at member Gus' site:
http://jagrepair.com/images/AutoRepa.../jagxk2003.pdf.

The CAN pair is Green and Yellow: there is a diagram of the interconnectivity in section 21.1 of the above guide.

One terminator is in the IC: the other I *think* in the DSC module.

 

I understand the abbreviation DSC but, what is IC?

 

I believe the 120 ohm termination resistors are integrated in the ABS module and the instrument pack module (Instrument cluster - IC ?)

See the diagram on page 3.5 of multiplex guide on jagrepair site

Jaguar Multiplex advanced diagnostics guide

 

My bad: Instrument Cluster as per Chirpy's response.

 

The "normal" failure modes for the ABS/DSC modules on our later cars are:

• If it shows at startup, it is a sign of an aging battery not able to maintain proper voltage under the load of the starter.
• If it shows up while driving, it is typically intermittent faults in the short section of wire harnesses to the front wheel sensors. With a JLR code reader, you can get a code unique to each of the 4 sensors to point you to the right corner. You can sometimes get lucky by cleaning the sensors. The sensors themselves seem to be pretty durable.

Best of luck, keep us posted.