Hi all, just recently purchased a 2007 HSE and as luck would have it the rear diff went within the first week.....

Also changed both rear shocks but seem to have damaged either the rear hub sensor, or the hub itself.

My questions:

When I replace a rear hub sensor should the warning light on the dash go out after a test drive or do I need to reset the light with an icarsoft (or similar)?

If the sensor is working but I need to change a dodgy rear hub is it a simple enough job and can anyone recommend a supplier?

I'd clear the error from memory first. Then if it reappears, start looking for the cause

Good idea, thanks!

Cleared the error code, no change.

I bought a replacement sensor (non oem) and checked it worked on the side that is OK, then checked the original sensor I thought was buggered- both of them work fine. Finally tracked it down to a dodgy bit of soldering at the plug connection....
Chopped the connection and soldered it together to find a solution but stil no luck, same error on my diagnostic.

Questions:
Can a dodgy battery earth give out spurious error codes on an icarsoft?
Is there a way to verify the hub sensor ring is working?

Does anyone know where I can get a replacement loom so I can have a proper sensor connector again (Scrappy)?

fist off, what exactly is your error code ?

Second, - yes you can test a sensor at the output. I have not got diagrams for the FL2, but is will almost certainly use a 3 wire active sensor. There will be a suplly (5V usually) - ground - and signal out which is a 5v square wave.
First, backprobe the sensor connection to ensure a good 5v feed and a good ground, then backprobe sensor pulse out to ground and turn wheel slowly, You should see the voltage fluctuation between 0 and 5v (one or the other) if you turn the wheel slowly enough.
Ideally it needs an oscilloscope to monitor the square wave signal output whose frequency will increase with wheel speed.
I have no idea as to the capabilities of the icarsoft 930 but it seems to be a reasonably good unit but limited. On any good diagnostic equipment you should be able to monitor the individual wheel sensors. I have no idea if the 930 can do that.
There is no point in trying to source a replacement anything until you have diagnosed the issue as you most likely will be wasting your time and money.
When back probing the sensor output test between the plug ground and sensor pulse out. If no reading, test between the sensor pule and and chassis ground.
As you have recently replaced the diff you may well have damaged something in that circuit - cabling or mechanical.
If all checks are good at that end then check the sensor output at the abs control ecu input to ensure there isn't a hidden beak in the loom at the rear.

I take your point about "wasting money", but I do NEED a replacement loom to be able to correctly install a new sensor (not happy with a soldered connection). As mentioned above, all three sensors I have work on the rear left hub - or at least they appear to as I have no fault code for any of them on the icarsoft.

I'll take some pics when I attack the job this afternoon...

Harold 4x4 said:

I take your point about "wasting money", but I do NEED a replacement loom to be able to correctly install a new sensor (not happy with a soldered connection). As mentioned above, all three sensors I have work on the rear left hub - or at least they appear to as I have no fault code for any of them on the icarsoft.

I'll take some pics when I attack the job this afternoon...

Click to expand...

What IS your error code ?

If the loom contains a small replaceable section then no worries - if it is a major part of a harness then get another plug with a length of cable attached and solder and heat shrink that to the existing loom. It will be absolutely fine.
If you take your old sensor to ANY breakers that have cars you can look around - you will probably find a suitable plug on most vehicles after about 2000 ish. Some before.... The plugs are usually extremely common across makes as the sensors are virtually all the same. Just look around a few vehicles - any make - and you will probably get one no worries.
Joe

Error code is C003A right wheel speed sensor.

Just in case anyone else has this problem...

Hour and a half in a French scrapyard, in the pouring rain, to discover the same connectors in a Ford Focus. €1
And I fond a Tork screwdriver so I'm up for a change!