Need some help; my 2010 XK just came up with a Tire Pressure System Fault error in the left front wheel that would not clear. I know that the tire-mounted sending units are working, so I pulled the left front tire and wheel well lining to check the antenna, only to discover broken wires coming out of the harness (one is blue, the other is white/blue). The car was involved in an accident years ago and was repaired by a Jag dealer before it was bought by the guy that I bought it from last year, but this looks like a hasty patch job with wires that don't match up. Additionally, there are two blue wires in the multi-connector that have been broken (they don't seem to be causing any trouble). I can't find a wiring diagram online to figure this out and the right front antenna does not plug into a multi-connector like the left side does; it only has two wrapped wires that go ??? (somewhere; can't tell...). Anyone have any experience with this? Thanks in advance...

 

Extracts from the Electrical Schematics rarely look readable in a post but I think you should be able to see this .....





Graham

 

Thanks Graham, I appreciate the quick response. Referring to other Jag diagrams, I finally figured out that the correct wires are the stand-alone blue and white/blue ones (not attached to the large connector); does anyone know if it matters how the power wire (blue) and the "return" wire (white/blue) are connected to the antenna? Will this short the sensor out, or does the system not care?

Also, if anyone removes their wheel well liner to change out their left side air intake filter anytime soon, I would appreciate a picture (or 6) to try and get an idea of what the two disconnected wires coming out of the large connector go to. Thanks to all...

 

Resolved! The repaired wiring to the TPMS antenna (after a former accident involving the left front quarter panel) was too short and the technician(s) had cobbled the wires back together, leaving both wires in great stress. My guess is that I finally hit a bump that flexed the connection and pulled both wires apart. I was able to determine which wire was positive and which was ground, (not sure that it makes a difference), then added short pieces of extension wires to relieve the stress, and the error code reset itself in a short drive around my neighborhood!