Car not Locking on Fob

STUBIE · 19th November 2016, 15:04

I fitted a both micro switches that were damaged on my key fob today, both now show led activity when pressed however, the fob will unlock all doors but will not lock the doors.

I have tried a resync by pressing the lock button 4 times and also a battery reset of 20 mins but still no joy.

Anyone got any ideas?

Stubs

David Lawrence · 19th November 2016, 15:28

Quote:

Originally Posted by STUBIE

I fitted a both micro switches that were damaged on my key fob today, both now show led activity when pressed however, the fob will unlock all doors but will not lock the doors.

I have tried a resync by pressing the lock button 4 times and also a battery reset of 20 mins but still no joy.

Anyone got any ideas?

Stubs

Could the lock motor be faulty?

STUBIE · 19th November 2016, 15:32

It's all doors not just the drivers.

Stubs

Mickyboy · 19th November 2016, 17:49

Do the indicators flash ? If so it shows the signal is being sent

You could try this;

You resync the key fob as follows: lock the car and leave for 2mins, unlock with key in drivers door and put key in ignition and turn on then off, then press either of the remote buttons 4 times in 4 seconds.
Resynch is complete.
You may have to try this 2 or 3 times

STUBIE · 20th November 2016, 13:19

Tried what Mickeyboy suggested but still no joy. I can see the indicators flash when I remote unlock via the fob but pressing the fob to lock does nothing, no indicator flash

I have to lock the doors by individually locking all the the doors using the door pin then lock the drivers door manually.

Is the unlock and lock sensors different or is it the same sensor?

Stubs

marinabrian · 21st November 2016, 06:31

Quote:

Originally Posted by STUBIE

I can see the indicators flash when I remote unlock via the fob but pressing the fob to lock does nothing, no indicator flash

Stubs

I would suggest you've damaged something on the remote PCB while soldering the lock switch on in that case, there are a lot of small components in that area and it's easily done

Brian

STUBIE · 21st November 2016, 17:19

Quote:

Originally Posted by marinabrian

I would suggest you've damaged something on the remote PCB while soldering the lock switch on in that case, there are a lot of small components in that area and it's easily done

Brian

If that's the case then rats.

STUBIE · 3rd December 2016, 14:50

In this case fuse 26 was gone, replaced and the repair to the keyfob is locking and unlocking the car fine.

Stubs

COLVERT · 3rd December 2016, 18:07

Quote:

Originally Posted by STUBIE

In this case fuse 26 was gone, replaced and the repair to the keyfob is locking and unlocking the car fine.

Stubs

Very interesting.

Thanks for the update.

You would expect that fuse to have affected all of the doors.--

STUBIE · 3rd December 2016, 18:26

It did it stopped all doors locking, but I would have thought that the unlocking and locking would be be on the same circuit.

Stubs

19th November 2016, 15:04	#1
STUBIE This is my second home Back in a Rover Join Date: Nov 2006 Location: Peterborough Posts: 4,926 Thanks: 131 Thanked 357 Times in 261 Posts	Car not Locking on Fob I fitted a both micro switches that were damaged on my key fob today, both now show led activity when pressed however, the fob will unlock all doors but will not lock the doors. I have tried a resync by pressing the lock button 4 times and also a battery reset of 20 mins but still no joy. Anyone got any ideas? Stubs

19th November 2016, 17:49	#4
Mickyboy This is my second home MG ZT CDTI 135 + & MGZT CDTI AUTO 160 & ROVER 75 TOURER CDTI 160 TROPHY YELLOW Join Date: Aug 2013 Location: Hernebay Posts: 4,331 Thanks: 818 Thanked 2,414 Times in 1,141 Posts	Do the indicators flash ? If so it shows the signal is being sent You could try this; You resync the key fob as follows: lock the car and leave for 2mins, unlock with key in drivers door and put key in ignition and turn on then off, then press either of the remote buttons 4 times in 4 seconds. Resynch is complete. You may have to try this 2 or 3 times __________________ [SIGPIC][/SIGPIC] T4 Owner Jobs done : new UBP, Spy hole mod, Rear hub(wheel bearing),plenum cleaned and emptied, Inline thermostat fitted,Full service, In car Digital tv/DVD Bluetooth Satnav etc, Replaced UBP, Restored headlights,Fixed airbag connection.replaced HP pump,replaced rear light seals,changed intercooler O rings. Jobs to do: ,replace drivers lock,.[/SIZE] Last edited by Mickyboy; 19th November 2016 at 17:52..

19th November 2016, 15:32	#3
STUBIE This is my second home Back in a Rover Join Date: Nov 2006 Location: Peterborough Posts: 4,926 Thanks: 131 Thanked 357 Times in 261 Posts	It's all doors not just the drivers. Stubs

20th November 2016, 13:19	#5
STUBIE This is my second home Back in a Rover Join Date: Nov 2006 Location: Peterborough Posts: 4,926 Thanks: 131 Thanked 357 Times in 261 Posts	Tried what Mickeyboy suggested but still no joy. I can see the indicators flash when I remote unlock via the fob but pressing the fob to lock does nothing, no indicator flash I have to lock the doors by individually locking all the the doors using the door pin then lock the drivers door manually. Is the unlock and lock sensors different or is it the same sensor? Stubs

3rd December 2016, 14:50	#8
STUBIE This is my second home Back in a Rover Join Date: Nov 2006 Location: Peterborough Posts: 4,926 Thanks: 131 Thanked 357 Times in 261 Posts	In this case fuse 26 was gone, replaced and the repair to the keyfob is locking and unlocking the car fine. Stubs

3rd December 2016, 18:26	#10
STUBIE This is my second home Back in a Rover Join Date: Nov 2006 Location: Peterborough Posts: 4,926 Thanks: 131 Thanked 357 Times in 261 Posts	It did it stopped all doors locking, but I would have thought that the unlocking and locking would be be on the same circuit. Stubs