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28th September 2021, 13:58
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#1 |
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Loves to post
Rover 75 Conn SE saloon / MG ZTT cdti auto Join Date: Jul 2011
Location: Lowestoft
Posts: 497
Thanks: 10
Thanked 33 Times in 26 Posts
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Central locking unlocking
I had a tensioner fail on my ZTT the other day, aux belt shrieking then went slack. Anyway, I had to dump the car, get home and then get recovery. When I got back to the car, it was unlocked. So I locked it. It unlocked itself. So I locked it again. A few minutes later, it unlocked and the tailgate popped. this went on for a while but once on the recovery truck it behaved ok, until we got it home and it unlocked itself on the drive. The battery is now off so I can sort the tensioner, but what could cause it to keep unlocking? Battery failing?? BCU u/s?? Any ideas?
__________________
Oh well, it's only money...... 2004 Conn SE 1.8 Work so far:- Gerry T, Rad Fan Resistor, Handbrake Compensator, Bonnet Catch Block, Leather Handbrake gaiter, Journey Camera, Sean's DD Unit with Freeview!, Towbar, Rear Sunblind, Smiley!, Headlamp Protectors, Alloy Intake, R75 Brolly, Puddle lights, reversing camera. 2004 Connie CDTi Tourer; replacement for the ZTT. |
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28th September 2021, 16:05
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#2 |
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This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
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It seems like one of the sensors is telling the ECU an item is unlocked.---ie. The bonnet, boot or a door.--Could that AUX belt have hit some wiring ??---
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28th September 2021, 21:28
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#3 | |
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Loves to post
Rover 75 Conn SE saloon / MG ZTT cdti auto Join Date: Jul 2011
Location: Lowestoft
Posts: 497
Thanks: 10
Thanked 33 Times in 26 Posts
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Quote:
I don't think so; the other thing is that the time between locking and it unlocking itself is random - sometimes a few seconds, sometimes minutes and it has relocked and then unlocked itself. I do wonder, though, whether parking near to a BT telecoms mast may have upset something as I have had this occur on my R75 which ended up with the immobiliser playing up after parking near one in Swanage. Hmmm.....
__________________
Oh well, it's only money...... 2004 Conn SE 1.8 Work so far:- Gerry T, Rad Fan Resistor, Handbrake Compensator, Bonnet Catch Block, Leather Handbrake gaiter, Journey Camera, Sean's DD Unit with Freeview!, Towbar, Rear Sunblind, Smiley!, Headlamp Protectors, Alloy Intake, R75 Brolly, Puddle lights, reversing camera. 2004 Connie CDTi Tourer; replacement for the ZTT. |
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29th September 2021, 08:22
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#4 |
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Premium Trader
Rover 75 Join Date: Nov 2010
Location: Devon
Posts: 33,760
Thanks: 8,837
Thanked 14,831 Times in 8,030 Posts
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It was the bcu when this happened to me, all doors would randomly unlock and all the windows would be wound down!?!
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Lest we forget..
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29th September 2021, 09:20
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#5 | |
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Loves to post
Rover 75 Conn SE saloon / MG ZTT cdti auto Join Date: Jul 2011
Location: Lowestoft
Posts: 497
Thanks: 10
Thanked 33 Times in 26 Posts
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Quote:
__________________
Oh well, it's only money...... 2004 Conn SE 1.8 Work so far:- Gerry T, Rad Fan Resistor, Handbrake Compensator, Bonnet Catch Block, Leather Handbrake gaiter, Journey Camera, Sean's DD Unit with Freeview!, Towbar, Rear Sunblind, Smiley!, Headlamp Protectors, Alloy Intake, R75 Brolly, Puddle lights, reversing camera. 2004 Connie CDTi Tourer; replacement for the ZTT. |
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