My ABS lamp in the dash lit up. No warning messages.
The ABS module has been repared once before, not by me but it looks like someone has cut a hole in the lid (and glued it back in) and i assume they have soldered the pins that normally goes wrong on these.
I have measured all four ABS wheel sensors at the module connector and they are all around 1080 ohms.
Is there anything else that could be the problem, or is it most likely a bad repair from the past?

 

You need the 'C' (chassis) DTCs to find what is wrong with the ABS.
Otherwise we can all guess?

 

I have no scantool that can give me other than engine DTC's. Neither do any local shops. Jaguar specialist? In Norway? Well if they exist they are very far between.
So yes, I hoped you could give me a good guess :-)
As noted I have veryfied that it is not the wheel sensors, maybe next step is to resolder the ABS unit (again)?

 

The module has the DTCs.
Guessing seems to be your only option?

 

Are you able to clear the code with your tool? If so, when does the code return? Failing cables will also illuminate the indicator, most often when turning.

 

There must be many shops in Norway that can read C codes. They don't have to be Jag specialists. If you do a search on the forum you will find recommendations by members for inexpensive instruments that you can purchase to do your own analytics.

 

iCarsoft sell scantools that will read the modules on these cars. Many other brands will too, do some research. Worthwhile investment, I consider a good scantool essential for owning one of these cars, or indeed any modern car these days.

 

Scan the car with Car scanner app, only code was intake air temperature, but instead of just clearing that code, I chose to erase all codes, and the ABS light disappeard!
Used the car only a couple of short trips afterwards but it is still gone.

 

You may want to clean the reluctor rings. I used a small wire brush in a drill on the rears. Worked a treat. No codes.