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Key Fob and Battery Replacement #1629410
09/02/2019 13:04
09/02/2019 13:04
Joined: Jun 2018
Posts: 42
East Sussex
I
iainb Offline OP
Club member 1683
iainb  Offline OP
Club member 1683
Discoverer
I

Joined: Jun 2018
Posts: 42
East Sussex
Can someone give me a bit of info about the key fob (pics below) from 1997 20VT?

1. What is the screw under the sticker top RH corner?
2. What is the slide switch on the RHS?
3. What is the socket on the LHS?
4. How do you get the fob apart to change battery?

click to enlarge
click to enlarge
click to enlarge

Re: Key Fob and Battery Replacement [Re: iainb] #1629411
09/02/2019 13:39
09/02/2019 13:39
Joined: Dec 2005
Posts: 7,146
Lightwater, Surrey, UK
DaveG Offline
Club Member 311
DaveG  Offline
Club Member 311
Forum is my life

Joined: Dec 2005
Posts: 7,146
Lightwater, Surrey, UK
That's a Scorpion 918U
1. Forget about the screw, normally covered by the Fiat logo
2. Switch for interior IR sensors, up=off, 2 beeps when setting alarm, down=on, 3 beeps (or the other way round, not sure)
3. I guess for programming, not needed
4. Prise the 2 halves apart using eg: a blunt kitchen knife edge


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: Key Fob and Battery Replacement [Re: iainb] #1629418
09/02/2019 16:16
09/02/2019 16:16
Joined: Jun 2018
Posts: 42
East Sussex
I
iainb Offline OP
Club member 1683
iainb  Offline OP
Club member 1683
Discoverer
I

Joined: Jun 2018
Posts: 42
East Sussex
Cheers, that popped apart no problem and I have ordered a new battery. Looks like someone has removed the sticker to twiddle that screw, it adjusts something on the circuit board. Found the user manual here:
http://italiancarsclub.free.fr/Centre-Documents-Techniques/fiat/fiat%20coupe/918user.pdf

Re: Key Fob and Battery Replacement [Re: iainb] #1629996
23/02/2019 15:44
23/02/2019 15:44
Joined: Jun 2018
Posts: 42
East Sussex
I
iainb Offline OP
Club member 1683
iainb  Offline OP
Club member 1683
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Joined: Jun 2018
Posts: 42
East Sussex
OK so I have two Scorpion 918u fobs. One has never worked, the other worked fine. After replacing the car battery, the other stopped working! Red lights work on fobs but they don't unlock/lock the car or set alarm.

I have tried replacing the fob batteries but still no joy. Do they need reprogramming somehow?

Re: Key Fob and Battery Replacement [Re: iainb] #1630002
23/02/2019 20:07
23/02/2019 20:07
Joined: Jan 2009
Posts: 599
Spain
avtokrator Offline
Enjoying the ride
avtokrator  Offline
Enjoying the ride

Joined: Jan 2009
Posts: 599
Spain
I had this same fob back in ‘94 installed in VW Passat as Gemini alarm system, don’t think these have that much programming capabilities, if everything’s (was) working fine then probably is out of sinchro (try pressing the lock button for few seconds continuously, or the frequency of the fob doesn’t match the alarm) that’s the screw for, if ever try to adjust that, use plastic screwdriver, but that’s the last to perform when trying regain connectivity.


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