Thank you for your service, Author. This was very helpful!
Printable View
Thank you for your service, Author. This was very helpful!
Last week Friday I parked my Discovery Sport at the hardware store. When leaving the vehicle started in park and the gear knob rose but would not turn, remaining stuck in park. I reset the computer by disconnecting the battery for 30 minutes, but the same issue persisted so I called the towing company for assistance getting my vehicle home.
My local landy specialist told me it was probably the transmission control switch (TCS) and that they often saw similar failures. They recommended that I phone Land Rover and buy a new unit for my model.
I decided to investigate online first and found this incredibly useful thread.
I removed the TCS and opened the unit. Tested the solenoid and confirmed it was still functional - this is possible without opening the bottom part of the unit that is stuck with the silver tape and sticky glue. You could simply attach power (9V DC) to the two blue contact wires and confirm that the plastic lock mechanism moves to the unlocked position.
When inspecting the PC board I confirmed that the same resistors on my board were brown from heat over time, so I reflowed the solder on all the joints close to the solenoid connection area.
I re-installed the TCS, re-connected the battery and I am now able to move the gear knob out of park and into gear. As good as new - Thank you so much!
Worked for me, had an issue with the pins on board to hold the connector were not soldiered properly, open connection.
Came out of the pub after lunch with wife and kids and couldnt move the knob out of park. Noticed no click while depressing brake pedal, checked brake lights working, but obviously the car also started. Went on here found this post, I must admit the photos are not that clear. From the quality it took me quite some time to actually figure out which was the release piece, I admit I thought the piece in question was part of the case when peaking in so didn't press on it.
Anyway, got a lift with a made who was leaving pub, went home for the ute with tools. Came back jigged up the zippy tie and took it home. Etc etc. couldn't see an issue with resistors. Issue was solder, no connection between pins and resistors. But visibly lacking solder on pins.
All back together and working now. Left the cable in obviously just in case there's another issue.
Thanks for the write up! I used to be a mechanic so the pictures were really what I was looking for. Good to know what's inside before you try taking things apart.