Locked car not responding to fob

Tenesmus · 1st April 2023, 15:49

Tried the spare, that doesn't work either. Could it be a wet ECU? The red light on the dash is regularly flashing as per usual.

Tenesmus · 1st April 2023, 22:45

Well that's interesting. The same thing is happening to our Viva and our neighbour's Corsa. And our wireless central heating thermostat stopped communicating with the receiver. They all work on 433mhz.

daveo138 · 2nd April 2023, 08:04

It sounds like something is blocking the signal, but what?

vitesse · 2nd April 2023, 08:21

Very interesting and something others have reported from time to time, ie that the central locking won't work in a particular location.

Identifying the source of interference isn't going to be easy as it's a common frequency for baby monitors, garage door openers and like you've said central heating control. Anything you or immediate neighbours have installed recently?

A device like this might help: https://www.rfwireless-world.com/App...gth-Meter.html

You could try shielding the remote with a large section of aluminium foil behind it while you press as near to the window as possible. If that doesn't work then try from the opposite side.

Good luck

Tenesmus · 2nd April 2023, 09:31

Am I right in thinking I'll be able to unlock using the key in the driver door but the car will remain immobilised? And where is the receiver, as I'm thinking tinfoil and get as close to it as possible once I'm in the car?

(fortunately the Viva isn't locked, which isn't a problem around here)

Mike Noc · 2nd April 2023, 09:49

Nope - the key will both open and start the car. The immobilisation is unlocked by a separate chip in the fob totally independent of the locking/unlocking.

vitesse · 2nd April 2023, 10:07

I believe your 2005 receiver is up near the dashboard, on the earlier cars it was between the seats but later moved to improve reception.

Regards

Tenesmus · 2nd April 2023, 10:11

Ah, that's a relief. Maybe I was thinking of my Sterling.

Tenesmus · 2nd April 2023, 20:17

Well, after driving around a bit and stopping and trying the fob in different locations nearby I figured out what it was.

My weatherstation.

Mike Noc · 4th April 2023, 09:49

Unlucky that they are on the same frequency.

Mrs Noc complained the central locking had packed up when parking up on the drive a few years ago, so I went out to have a look and found I couldn't get into my car either, and the neighbour couldn't get into his. No idea what caused it as the problem disappeared after a couple of hours and never came back.

1st April 2023, 15:49	#1
Tenesmus Loves to post Rover 75 Tourer Join Date: Nov 2014 Location: Penzance Posts: 481 Thanks: 17 Thanked 69 Times in 52 Posts	Locked car not responding to fob Tried the spare, that doesn't work either. Could it be a wet ECU? The red light on the dash is regularly flashing as per usual. __________________ 2005 Connoisseur 2.5 auto SE Tourer in BRG with Sandstone Beige and Black piping interior (the 2nd of only 7 Rover 75s produced 5th November 2004, and it’s the 244th of 303 facelift British Racing Green 75 tourers built worldwide). All I've done is add Rover walnut gear knob and handbrake... 2016 Vauxhall Viva SL (Father Jack) "assisted manual" (auto) in purple. Going rusty underneath already...

1st April 2023, 22:45	#2
Tenesmus Loves to post Rover 75 Tourer Join Date: Nov 2014 Location: Penzance Posts: 481 Thanks: 17 Thanked 69 Times in 52 Posts	Well that's interesting. The same thing is happening to our Viva and our neighbour's Corsa. And our wireless central heating thermostat stopped communicating with the receiver. They all work on 433mhz. __________________ 2005 Connoisseur 2.5 auto SE Tourer in BRG with Sandstone Beige and Black piping interior (the 2nd of only 7 Rover 75s produced 5th November 2004, and it’s the 244th of 303 facelift British Racing Green 75 tourers built worldwide). All I've done is add Rover walnut gear knob and handbrake... 2016 Vauxhall Viva SL (Father Jack) "assisted manual" (auto) in purple. Going rusty underneath already...

2nd April 2023, 09:31	#5
Tenesmus Loves to post Rover 75 Tourer Join Date: Nov 2014 Location: Penzance Posts: 481 Thanks: 17 Thanked 69 Times in 52 Posts	Am I right in thinking I'll be able to unlock using the key in the driver door but the car will remain immobilised? And where is the receiver, as I'm thinking tinfoil and get as close to it as possible once I'm in the car? (fortunately the Viva isn't locked, which isn't a problem around here) __________________ 2005 Connoisseur 2.5 auto SE Tourer in BRG with Sandstone Beige and Black piping interior (the 2nd of only 7 Rover 75s produced 5th November 2004, and it’s the 244th of 303 facelift British Racing Green 75 tourers built worldwide). All I've done is add Rover walnut gear knob and handbrake... 2016 Vauxhall Viva SL (Father Jack) "assisted manual" (auto) in purple. Going rusty underneath already...

2nd April 2023, 10:11	#8
Tenesmus Loves to post Rover 75 Tourer Join Date: Nov 2014 Location: Penzance Posts: 481 Thanks: 17 Thanked 69 Times in 52 Posts	Ah, that's a relief. Maybe I was thinking of my Sterling. __________________ 2005 Connoisseur 2.5 auto SE Tourer in BRG with Sandstone Beige and Black piping interior (the 2nd of only 7 Rover 75s produced 5th November 2004, and it’s the 244th of 303 facelift British Racing Green 75 tourers built worldwide). All I've done is add Rover walnut gear knob and handbrake... 2016 Vauxhall Viva SL (Father Jack) "assisted manual" (auto) in purple. Going rusty underneath already...

2nd April 2023, 20:17	#9
Tenesmus Loves to post Rover 75 Tourer Join Date: Nov 2014 Location: Penzance Posts: 481 Thanks: 17 Thanked 69 Times in 52 Posts	Well, after driving around a bit and stopping and trying the fob in different locations nearby I figured out what it was. My weatherstation. __________________ 2005 Connoisseur 2.5 auto SE Tourer in BRG with Sandstone Beige and Black piping interior (the 2nd of only 7 Rover 75s produced 5th November 2004, and it’s the 244th of 303 facelift British Racing Green 75 tourers built worldwide). All I've done is add Rover walnut gear knob and handbrake... 2016 Vauxhall Viva SL (Father Jack) "assisted manual" (auto) in purple. Going rusty underneath already...

2nd April 2023, 08:04	#3
daveo138 Gets stuck in Rover 75 Tourer Join Date: Mar 2022 Location: Chesterfield Posts: 669 Thanks: 206 Thanked 69 Times in 53 Posts	It sounds like something is blocking the signal, but what?

2nd April 2023, 08:21	#4
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,528 Thanks: 395 Thanked 823 Times in 652 Posts	Very interesting and something others have reported from time to time, ie that the central locking won't work in a particular location. Identifying the source of interference isn't going to be easy as it's a common frequency for baby monitors, garage door openers and like you've said central heating control. Anything you or immediate neighbours have installed recently? A device like this might help: https://www.rfwireless-world.com/App...gth-Meter.html You could try shielding the remote with a large section of aluminium foil behind it while you press as near to the window as possible. If that doesn't work then try from the opposite side. Good luck

2nd April 2023, 09:49	#6
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,547 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Nope - the key will both open and start the car. The immobilisation is unlocked by a separate chip in the fob totally independent of the locking/unlocking.

2nd April 2023, 10:07	#7
vitesse I really should get out more....... Rover 75 Saloon Join Date: Jul 2011 Location: Gävle Posts: 2,528 Thanks: 395 Thanked 823 Times in 652 Posts	I believe your 2005 receiver is up near the dashboard, on the earlier cars it was between the seats but later moved to improve reception. Regards

4th April 2023, 09:49	#10
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,547 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Unlucky that they are on the same frequency. Mrs Noc complained the central locking had packed up when parking up on the drive a few years ago, so I went out to have a look and found I couldn't get into my car either, and the neighbour couldn't get into his. No idea what caused it as the problem disappeared after a couple of hours and never came back.