Thread: Rotary gear selector (TCS) problem ?

Which module is reporting the U201B-54?

Usually this is only seen in the CJB regarding electric steering column calibration, nothing to do with transmission.

You need to check live or pending faults in TCM or GSM in this case.

Originally Posted by Cambo_oldjaguar

Which module is reporting the U201B-54?

Usually this is only seen in the CJB regarding electric steering column calibration, nothing to do with transmission.

You need to check live or pending faults in TCM or GSM in this case.

Hi Cambo

Thanks for getting back

I think the module reporting that fault is BCM.. Body Control Module ? As I said , that was the only fault I could not CLEAR with the IID tool but I am probably not understanding what CLEAR actually means

So I should have said that there were other faults reported being....

• U0101-00 (6C) Lost communication with transmission control module
• U0103-00 (6C) Lost communication with gearshift module

You can ignore the U201B-54 then.

These two faults about lost comms to TCM & GSM are relevant, possibly power supply issues, wiring problem or a failed module/s but that’s going to need further investigation.

I have had the BCM-Body control Fault U201B-54 (2F) for years, as long as I have owned my Discovery. It never clears and doesn't seem to be a problem for the car. So it's interesting for me to see you have it and I wonder whether it has just appeared for you or whether it was there before your present issues.

Originally Posted by Mog60

I have had the BCM-Body control Fault U201B-54 (2F) for years, as long as I have owned my Discovery. It never clears and doesn't seem to be a problem for the car. So it's interesting for me to see you have it and I wonder whether it has just appeared for you or whether it was there before your present issues.

Thanks' Mog60 , that's useful because it helps me narrow down to its being 'only' the TCS itself or connection between TCS and rest of car

So for the benefit of anyone else who has this problem... turns out that it was simply the power supply wire to the TCS that had shorted out (see photos) and blown the fuse.

Not sure why the wire was touching this sharp metal edge .. but all working now

So why didn't I check the fuse - first thing I did, BUT I used a multimeter to measure ohms across the pins without pulling the fuse. Apparently there can be a connection path back through the car

It was only back in Perth (thanks RAC) when I pulled the fuse to double check that I saw it was blown - lesson learned!

Hi Geoff,
I have recently experienced a reoccurence of what seems to be an exact replication of your fault. First experience was after a run over the Oodnadatta track. Shift selector stuck in park and would not rise. D4 came home on truck. After coming off the truck in Melb, car worked fine. No fault found. 3 years later we stopped just outside Cunnamulla. Shift selector stuck up, not in park. Car would not start and was towed.. Replaced selector and car started but could not select drive. Car came home on truck and worked when it arrived at repair centre.. I am suspicious that this is not a selector fault but may be a short that does not blow a fuse.. I cannot see the pictures you have posted and would be grateful if you could re-post so I could check my D4 for the same condition.
Regards Frank.