2004 Jaguar Xj8 ABS Traction Control Engine Lights Come On Off

Check engine lights should not be triggered by the ABS, the two are likely unrelated. Pull the codes from your computer (you can borrow a code checker from autozone, etc.) to know where to start. The ABS/Traction control is usually due to a faulty weld in the ABS module meaning it is not receiving power. The ABS/TC failure does not affect normal driving and brake operation but may affect performance in extreme weather/driving. It could also of course be the wheel sensors or another fault, this is just most common.