8 speed shift lock solenoid problems

Thanks to Marc for the detailed fix to this problem.

Not sure if my problem is exactly the same as it is intermittent and my diagnostic tool (Blackbox) does not show this error (P176C-11). The problem has occurred twice in the past few days, but has so far 'rectified' itself, the first time within a few minutes, the second time overnight.

Situation - start car normally, selector raises as normal, foot on brake, try to turn selector and stuck - will not turn.

Before I go pulling the TCS assembly apart, are there any other reasons that the selector would get stuck in P and not rotate? Anything else that I should be checking?

Quote:

---

Originally Posted by Llandy4

I've been quoted £330 for a new unit. Do you or anyone know if the new part is plug and play or if it would need to be programmed in. Thanks

---

Did you ever get an answer to this? Did you ever purchase a new unit and install? Was the intermittent problem the TCS or something else such as the Brake switch?

Quote:

---

Originally Posted by INter674

The car is not drivable cause the wife turned it off. Had she not we'd been able to drive forward only. Not sure what would have happened if we'd pulled the rip cord putting the tranny in N...prolly would have meant we could not select drive again...who knows😎

What a stupid stupid system!

---

You have to wonder about the clowns they employed to design these systems.
A Land Rover ... a vehicle that has always been a vehicle that has been used to go into some extremely rugged and remote places .. and they put systems like this in them.
It's like they got these people straight out of Uni .. no experience at all in 4x4 and remote travel .. gave them the latest catalogue from RS Components and said go for your life and design a complex whiz bang piece of wizardry that's not entirely reliable and while you're at it .. make sure that you don't build a release or bypass mechanism into it.
The damn car is full of this nonsense .. not to mention the cheap nasty plastic components like dodgy air intake manifolds and the positioning of components that need to have the entire body removed to carry out a generally easy service.

I thought my D2 was a problem to work on .. but this is at a whole new level of stupidity!!
The vehicle, when working as it should, is a very capable vehicle .. however .. most of the time I'm too terrified to take the thing offroad remotely out of fear of some minor unrepairable issue leaving me in a possible life threatening situation.

Land Rover have completely lost the plot!!

Quote:

---

I thought my D2 was a problem to work on .. but this is at a whole new level of stupidity!!
The vehicle, when working as it should, is a very capable vehicle .. however .. most of the time I'm too terrified to take the thing offroad remotely out of fear of some minor unrepairable issue leaving me in a possible life threatening situation.

---

It's probably more that a vendor comes to them with a you beaut idea that will be a great feature and enable them to sell more cars, or save weight or be quieter.
hence the electric handbrake, and most probably the dial. Probably ZF has promoted it.

Regards PhilipA

Quote:

---

Originally Posted by PhilipA

It's probably more that a vendor comes to them with a you beaut idea that will be a great feature and enable them to sell more cars, or save weight or be quieter.
hence the electric handbrake, and most probably the dial. Probably ZF has promoted it.

Regards PhilipA

---

It is exactly that. ZF make the box that way and sold LR on the idea. Marketing demand wiz bang new stuff and suppliers continue to enhance and develop. It’s just life - fancy and new stuff sells.

If you don’t want to keep with the times and progress, even if going forward you sometimes take a step back, I guess you might consider the typewriter I have in the shed to post your comments on this forum? You can post the comment to me via Australia post and I’ll post it up for you. It’ll take a few weeks I expect.

Sure some tech seems like tech for the sake of tech, and really it is, but it’s all stepping stones to a new future. Some great steps, some not so. We wouldn’t have any of the things we take for granted if we didn’t push the boundaries in everything.

Quote:

---

Originally Posted by DiscoJeffster

It is exactly that. ZF make the box that way and sold LR on the idea. Marketing demand wiz bang new stuff and suppliers continue to enhance and develop. It’s just life - fancy and new stuff sells.

If you don’t want to keep with the times and progress, even if going forward you sometimes take a step back, I guess you might consider the typewriter I have in the shed to post your comments on this forum? You can post the comment to me via Australia post and I’ll post it up for you. It’ll take a few weeks I expect.

Sure some tech seems like tech for the sake of tech, and really it is, but it’s all stepping stones to a new future. Some great steps, some not so. We wouldn’t have any of the things we take for granted if we didn’t push the boundaries in everything.

---

I have no problem with advanced technology and moving ahead.
I just don't think that a lot of this new tech belongs in a 4X4 .. regardless of the make.
A 4x4 has traditionally been used for doing remote travel, very often under arduous conditions and there is little place for whiz bang gadgets that ones very life may well depend are working .. especially if there is no way of bypassing a fault.

Every 8 speed owner should watch this

9 things I did not know before I bought my Land Rover Discovery 4 / LR4 - YouTube

Quote:

---

Originally Posted by laughto

Thanks to Marc for the detailed fix to this problem.

Not sure if my problem is exactly the same as it is intermittent and my diagnostic tool (Blackbox) does not show this error (P176C-11). The problem has occurred twice in the past few days, but has so far 'rectified' itself, the first time within a few minutes, the second time overnight.

Situation - start car normally, selector raises as normal, foot on brake, try to turn selector and stuck - will not turn.

Before I go pulling the TCS assembly apart, are there any other reasons that the selector would get stuck in P and not rotate? Anything else that I should be checking?

---

Did we get an answer if we need to disconnect the battery prior to unplugging the TCS?

EDIT: I went ahead and disconnected while the car was off anyway and reconnected about 20 mins later with no visible faults. But then again i don't have a diagnostic tool. Thats nexts on the shopping list.

Saved me a tow of shame. Thanks!

Just wanted to add my thanks for this fantastic write up. Ironic that I had to go to the other side of the world to find it, when I'm only a few hours from Solihull here. I don't have time to mess with repairing the unit at the moment, so I bit the bullet and got a new one (£400 offering to the LR gods), but when I have a bit of time I will have a go at the repair of the old unit and keep it as a spare.