On my Disco TD5 (99 V reg) I have a ABS TC HD light fault, previously when under warranty this was cured with a new wheel sensor. So this time I worked out which was faulty by applying the brakes on a muddy road and checked to see which wheel locked up, also tried to spin the wheels and see which wheel the traction control left alone, each time it was the front passenger wheel. I then checked the resistance of the sensor and it was open circuit, all the others measured around 1000 ohms. Landrover parts dept say the sensor is not available on its own but as a complete item with a hub assy for around £270 however if you question them they will look on a different page of the parts manual and hey presto the sensor is there for £47! so I changed the front passenger side ABS sensor, but the fault is still present! The new sensor reads 1036 ohms and can be measured at the SLABS unit, if I spin the wheel I get about 20mv P/P from the new sensor but the other wheels when spun will generate around 150-180mv P/P (measured with a scope). Now the question is do Landrover have somone matching up the wheel sensors to hub assemblies (not very practical) or have I missed somthing? I can't see that L/R would have changed the sensor spec (both have the same part No and are made by Wabco) I dont really want to fork out £270 for a front hub assy and find the fault is still present or book it into L/R and have to admit defeat with what appears to be a simple problem! So as anyone experienced this before and can you point me in the right direction to cure the problem.
Very confused Dean