Gearbox fault

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Originally Posted by Scouse

It won't be the lack of a brake light at fault. Neither of my P38s have the centre brake light fitted at the moment.

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I think you are right, it was just a suggestion..I did some research on the gs2.38 and I don't think it would have the ability to throw a fault from the brake light missing.

Hi Scrouge,
yes I would not think it would cause a fault. And I did not notice the fault when I drove the P38 to the window tint people, only when I went to drive it home, and after I connected the center brake light the fault was still there until I got to the corner then I turned the car off and restarted it and the fault was gone. Then I drove it to my mates workshop and checked for codes and there was none there. So all we could put it down to is P38 gremlins, and leave it at that. If it reoccurs I will look into it further.
Thanks for your help, Alan

As there are no fault codes present, is it possible they left the radio or hedlights or something else on that may have drained the battery?
So when you got it back it had a low battery, which triggered the fault to appear.
With a bit of driving the battery has had time to recharge and the fault went away.

From what I've read, more often then not, it's a low voltage issue, can be caused by corrosion in the battery cables or an earth point that needs cleaning.
If it's gone away, you might be in luck with no actual problem, but if it comes back I would start investigating electrical causes.
There's a great troubleshooting write up here that takes about 5 mins to do.

**INFO** Electrical Troubleshooting | Range Rovers Forum

Hi Peter, thanks for that information, it is a interesting read. I will do some testing but I don't think I have any problems with the alternator or batteries. But when I left my vehicle with the window tint guys I forgot to turn off the interior lights so they would all stayed on for most of the day which would have drained the battery's. So that could be the answer to why the fault appeared on the way home, and fixed itself after a short drive. Thank you for your help. Regards, Alan