L322 Auto box disengaging

Gvmclean · Jul 7, 2021

This is my first L322 post but I've had a few P38 posts in the past and hope the L322 guys are as helpful as the old guard!

I've got the fault code "P0501-00 (2E)" which is thrown after the engine is under load, the first time was whilst towing a caravan but now it is more regular. When this happens, the automatic gear box appears to disengage and you must lift your foot off of the accelerator until you kind of feel the gears re-engage again before being able to drive off normally. So this is basically a temporary loss of all forward drive when this fault is thrown.

Any thoughts ladles and gents? Thank you in an advance.

gold rover · Jul 7, 2021

Welcome to the wacky world of the L322. Just for the heck of it, which year L322 and which diagnostics are you using? After that I believe this might be the bat light for @Bemble

Gvmclean · Jul 7, 2021

Yay, the L322 has a Wammers!!

I have a 2007 and I'm using the GAP IID Bluetooth.

gstuart · Jul 7, 2021

gold rover · Jul 7, 2021

Gvmclean said:
Yay, the L322 has a Wammers!!

I have a 2007 and I'm using the GAP IID Bluetooth.

Have you been away for a bit?
Not sure about others but I felt that one a bit sharp

Gvmclean · Jul 7, 2021

gold rover said:
Have you been away for a bit?
Not sure about others but I felt that one a bit sharp

I've been away a while but not years. I'm not sure what you mean by sharp, sorry. I never try to come across as anything another than appreciative of any and all help that this forum has given me and many others in the past and hopefully future.

gold rover · Jul 7, 2021

Gvmclean said:
I've been away a while but not years. I'm not sure what you mean by sharp, sorry. I never try to come across as anything another than appreciative of any and all help that this forum has given me and many others in the past and hopefully future.

I was asking , just in case you weren't aware that we have lost Wammers.

Gvmclean · Jul 7, 2021

Oh god! I had no idea, honestly. That man saved my P38 more times than any other member. I just figured I hadn't seen his name as I was trawling L322 forums and not the P38 ones.

gold rover · Jul 7, 2021

Gvmclean said:
Oh god! I had no idea, honestly. That man saved my P38 more times than any other member. I just figured I hadn't seen his name as I was trawling L322 forums and not the P38 ones.

No worries. It is still recent enough for it to be felt at times. He was the saviour of many vehicles on here and will be sorely missed for all his input, not just P38 , for a very long time.

tomcat59alan · Jul 8, 2021

Gvmclean said:
I've been away a while but not years. I'm not sure what you mean by sharp, sorry. I never try to come across as anything another than appreciative of any and all help that this forum has given me and many others in the past and hopefully future.

Guessing you've been judged by Vinegar Tits don't let it worry you do what many have done and block her

tomcat59alan · Jul 8, 2021

Gvmclean said:
Oh god! I had no idea, honestly. That man saved my P38 more times than any other member. I just figured I hadn't seen his name as I was trawling L322 forums and not the P38 ones.

He's still sadly missed

Gvmclean · Jul 8, 2021

I'm sure he is. I never met him but him and Datatek saved my bacon more than once with the P38.

Sooooooo, any thoughts on my issue from anyone?

gold rover · Jul 8, 2021

Gvmclean said:
I'm sure he is. I never met him but him and Datatek saved my bacon more than once with the P38.

Sooooooo, any thoughts on my issue from anyone?

When this happens, Do you have low range? Do you have reverse?

gold rover · Jul 8, 2021

Just did a quickie google ( ooo errr Mrs) and 2nd result gives this post by Disco Mike states "501 is a vehicle speed sensor range/performance, VSS implausible, so no 02 or ECU issue.
You will probably loose your forward gears soon, how is it currently driving "
https://landroverforums.com/forum/discovery-ii-18/p0501-59743/

tomcat59alan · Jul 8, 2021

Gvmclean said:
I'm sure he is. I never met him but him and Datatek saved my bacon more than once with the P38.

Sooooooo, any thoughts on my issue from anyone?

First sort your battery problem,these cars Don't like low voltage.

Bemble · Jul 8, 2021

As the DTC seems to be wheel speed sensor related, and because you're losing drive, I think it would be worth checking your driveshafts

Phil

Gvmclean · Jul 8, 2021

Drive shaft sounds very much like a shot in the right direction! The only thing that's throwing me off is that I've recorded live values from all wheel speed sensors and nothing was amiss with the data. That's with the GAP IID tool. There seems to be a judder now when the car is trying to 'find' it's gears, which is odd. I'll post updates for anyone when I find the issue. Thank you so far for the pointers and advice.

Gvmclean · Oct 4, 2021

A quick update. Changing out the battery (after having a battery check conducted) seems to have lessened a lot of the fault codes but the main problem persists. I'm now just waiting to hear back from a mechanic for an appointment to look at my drive shafts still. When it happens, I have no low or high box. No drive. No reverse. It is though the transfer box just stops engaging. The gearbox stays in drive though, making me feel like drive shaft or transfer box and not gearbox.

Gvmclean · Oct 4, 2021

Another update. The issue appears to get much much worse the warmer the car and running gear gets. I took it for a little 10 minute run the other day after a transfer box flush and had to get towed home. Although now the P0501-00 code doesn't get thrown when this happens. Well not every time, anyway.

gold rover · Oct 4, 2021

Phil is your man for this. Unless Ant pops his head in.

L322 Auto box disengaging

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