I have an 02 Jaguar X type with the 2.5L V6. I recently purchased the car and I had been sitting for a few years before I bought the car. I am cuttently reading C1233, C1235, and C1236 error codes. Showing I have 3 bad wheel speed sensors, on the left front, and both rear wheels. The problem I I just replaced the left front sensor and harness and it still reads bad. I sm now sure it it is the module that the sensors plug into and where would that module be located. If not can you clean out the area around the gear the sensor reads. I am grasping at straws and not sure where to start so any help would be appreciated.

 

I’m new here like you but the ABS unit is behind the right headlight.
If you have a volt meter back probe the good sensor and compare to the bad.
My 07 3.0 reads 12v on one wire and .5v on the other with key on and wheel stationary.
Here’s some reading until someone more knowledgeable comes along…
https://www.jaguarforums.com/forum/x...-wheel-277825/

 

If the car has been in storage for quite some time, it is quite possible there has been some rodent activity at some point that might have damaged some wiring.
Believe it or not the plastic wiring insulation in these cars is derived from a vegetable base, so the critters unfortunately tend to find it quite appealing.

As Enormiss has said, the wheel speed sensors come back to the ABS module situated behind the right headlight.
I suggest you visit JagRepair.com - Jaguar Repair Information Resource and download a schematic for your 2002 model.
You will find the anti-lock braking schematic on page 61 (Fig. 5.1). That gives you the relevant pin outs and wiring colours on plug JB45.

 

Thank you for the schematics and information.

I just recently replaced the front drivers side speed sensor and cable. The cable was broken and a very poor quality repair was attempted. I replaced the cable with a new cable and speed sensor. I still have the same error.
I won't get a chance to look at the car until next weekend and will post the results. I am hoping there is just some crud or rust by the sensors but with the previous repair I am not hopeful that it isnt the control module.