Home > Puma (Tdci) > Keyfob Unlock and Starting problem |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20287 |
Just press unlock before you start, it's the immobiliser kicking in.
It's in case it was accidentally left unlocked. ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️ |
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19th Mar 2017 9:22pm |
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mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6769 |
If it happens again try locking and unlocking with the key fob several times and see if it starts to work. Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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19th Mar 2017 10:39pm |
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17322 |
Disable the passive immobiliser and see if that stops the problem.
On the face of it this sounds like an AS10 fault. |
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19th Mar 2017 10:55pm |
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zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 2720 |
It's a feature called passive immobilisation. Pressing the button before turning the key should disable the immobiliser. However there is a coil on the ignition switch that should mobilise it automatically. So it sounds like the fault is with the coil. Another thing that can do it is if you have two fobs next to each other. Do you have another set of car keys on the same key ring?
If you press the unlock button 4 or 5 times in succession does it unlock the car? If the buttons have been pressed with it out of range of the car it loses sync. |
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19th Mar 2017 11:24pm |
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fincormack Member Since: 30 Jan 2016 Location: North Wales Posts: 4 |
The problem is when it goes into this mode the keyfob will not work .
So if I approach the vehicle and try the fob it just won't work. Is there a way to test what is actually at fault? |
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20th Mar 2017 1:24am |
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fincormack Member Since: 30 Jan 2016 Location: North Wales Posts: 4 |
Ok how do I do this?? |
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20th Mar 2017 1:26am |
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fincormack Member Since: 30 Jan 2016 Location: North Wales Posts: 4 |
Another think I have noticed when this happens is the milometer resets to 0 and the clock has lost a few minutes. So it's losing power too.
I have read somewhere that the instrument console can cause problems too. So from what I can work out. It's either the alarm immobiliser, the ecu, the clocks or a bad earth or a combination of all these . Need to know where to start to identify what is the cause. . |
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29th Mar 2017 6:54pm |
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Seddodefender Member Since: 18 Jun 2019 Location: Midhurst Posts: 1 |
Hello did anyone source a answer to this thread. Just brought my landy 2 months ago all fine n dandy but this week the fob and immobiliser has been acting weird. Haven’t been able to unlock the landy with the fob, so changed the fob battery worked for a day fine, but now parked my landy for couple hours in London come back to it, there’s no lights on the dash saying it’s armed also I can’t switch my work lights on with my LED fob. Has my battery died? Can I start my truck tomorrow by opening the door with the key - alarm going off - key in ignition and turning it over - will the arm cease thus cranking the engine?
Really need help cause I’m stuck right now. It’s very intimittent. |
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22nd Jun 2019 1:05am |
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katana069 Member Since: 28 Mar 2022 Location: Northern Ireland Posts: 44 |
Any solutions to this? My 2003 TD5 has the same issue. Keyfob stops working and can spend 10mins trying to get it to work. I can bump start it from my drive and away it goes?? |
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17th Sep 2024 8:12pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20287 |
Battery ground is a con on fault with this, high continuity in the ground path causing high voltage drop on ignition, thus failure to start..
It’s not the only issue but is common, and happens out of the blue sporadically. ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️ |
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18th Sep 2024 1:42pm |
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