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This gives me a bit more confidence to attempt the manual release modification. However, you have scared me somewhat with the static charge issue. It's a tricky decision to preemptively open up a perfectly functioning module versus just knowing how to release the shift lock in an emergency and only attack it at that time. I have preemptively installed a manual release for the tailgate but that didn't involve sensitive electronics.Quote:
Originally Posted by Mattblack59bus
Cheers,
Scott
Just use a wooden kebab stick...no great force is needed if releasing from the side and unless you are soldering you won't be touching the circuit board anyway.
I also installed the hatch release. ..talk about reverse engineering!!
Hi Scott,
Opening any electronic device has its risks, I was in the position where I was going to have to buy a new unit anyway so for me it was worth the risk.
If you take care not to build up any static on clothing etc and handle the board carefully you wont have a problem.
If you've had no issues with your TCS, I would probably just keep a T20 Torx driver in the car and use the quick fix if and when it happens.
I have no data on the longevity of the fix and for me the lock release is good piece of mind.
Cheers
Marc
Good advice Marc.
Also practice accessing the red lever under the console ...just like on a plane in the emergency seat row☺
Remove cup holder...just reef it up...use coin to turn lock...pull up the handle and get towed to a safe place.
Just in case you're also stuck with the handbrake on also note the emergency handbrake release cable loop is under the spill tray beneath the cup holders meaning 2 Phillips screws need to be taken out first.
If you can wait the module is about 200 bucks cheaper from the UK (search around as the price varies a lot) or 880 from LR Melbourne.
So many thanks to Marc for publishing such an informative and detailed writeup. I saved a link to the thread last Sunday in case I required it for future reference.
Little did I know that I'd need it so soon - last night I pulled into an angle park outside a shop, and couldn't shift out of D. I'd previously made myself familiar with the faint "click" of the shift lock solenoid when the brake pedal is touched, and knew it was not functioning now. My first thought was this thread and the lock solenoid issue, but I decided to start with the basics - surely it's just the brake pedal switch (which I've never had an issue with, but keep one in my spares box...). Going by IID tool live values I could see that the brake pedal switch was working fine. I didn't have any faults on the dash, but when I scanned for faults I found:
"P176C-11 (2F) Transmission range selector lock control error - circuit short to ground"
Note - I had the engine running through this entire procedure (even though I couldn't drive anywhere as I was against the kurb, stuck in D, aiming straight at a couple eating their dinner in an outdoor seating area of a café - I was worried that if I turned the engine off, that might be the point I'd have to give up hope and call for a tow truck...?). The back of my car is loaded with a multitude of tool cases I use for work, so I knew I had everything I needed, but I couldn't open the tailgate (LR safety feature won't allow it to open if the transmission is in D!). I managed to climb over my bass rig in the back seat (I was on my way to a band rehersal) and retrieve a small socket set that has a set of torx bits, then followed Marc's detailed instructions on removing and partially opening the TCS, and looping a rubber band (conveniently found in my drivers door storage tray) over the plastic shift lock arm, looping the other end around the corner of the housing so that it held the arm in the unlocked position. I checked the shift knob and it was now free. I shifted into park and finally felt comfortable to turn off the engine. I put 2x screws back into the housing and sat everything back into place (without any screws - it'll all be coming apart again this weekend), and was able to drive to band rehersal - an hour later than planned, but I was mobile!
FYI - the gear selector still feels perfectly normal in use, I have no faults on the dash and the Disco drives as sublimely as usual. I assume that without the shift lock mechanism functioning there could be a risk of bumping the gear selector in/out of gear while the vehicle is moving? I hope to find the time to strip the module apart and check the solenoid / solder joints etc more closely.
There is no way I would have even figured out how to access the TCS module let alone have the confidence to open it up if it wasn't for Marc's fantastic report, thanks again Mattblack59bus!!! If this had happened to me just 1 week ago, it would have been my first flatbed truck trip as a LR owner (and probably a week without a vehicle loaded with all of my work tools and band gear, plus many $$$ in parts and labour).
Cheers, Tim
2014 Discovery TDV6 @ 186,000km
Wow...we all owe Marc lots of beers☺
My situation was the same..ie engine running outside v busy shop...most embarrassing esp the tilt tray turning up with a dozen spectators looking on as my kids bolted in their rustic reliable Patrols.
Good outcome potentially saving you @ 1500 bucks or more. Mine was quoted at 1500 to 2000 by the stealer inc an upfront diagnostic charge of 375. ..parts 880...labour (est 2-3 hours) plus configuration and testing..plus GST. I had Roadside Assist but without it add another couple hundred or more.
PS I've emailed LR Aus about this issue..see what kind of fob off I get😐
LR Aus responded quickly to my email outlining concerns about the rotary shift lock failure.
They advise that a case has been opened to urgently investigate the failure which I described as a serious safety issue that should be addressed by at least the free replacement of the unit.
Good to see LR is looking into it promptly.
And a recall and replacement! Bwahahahahaha. LR do a recall [emoji1787][emoji1787][emoji1787][emoji1787][emoji1787]Quote:
Originally Posted by INter674
What crank failures.....
After reading through this thread,i am just glad mine hasn't got one,just one less thing to go wrong.[biggrin]
Hi Tim, I'm happy the fix worked for you, hopefully it's not going to start affecting all the 8 speed boxes. In regards to the bumping the shift selector risk, in my testing the gear box will not select a drive mode without the brake pedal being pressed at the time of the gear change. I would recommend you test this in a safe location.Quote:
Originally Posted by Victim
Cheers
Marc