remote key fob - 1997 S70 - Page 2

amazondean · Jul 15th, 2020, 16:08

The 850 models are easy. You just turn the key to the second position and back 5 times, then on the 5th time leave the key in position 2, ignition position (the light in the centre of the dash stays red), press the new remote button until the light in the centre of the dash flashes, then the new fob is programmed.

pff · Jul 15th, 2020, 16:56

to program the fob to the car you need to connect to the alarm module via obd2 and then send it a pin number unique to your car at which point you have a set time to push a button on the fob for the module to learn the fob.

I think this is right if someone knows better please correct me:
the earlier model cars (97/98?) used a hand held device and the technician manually looks up the pin on the database, later model cars (98-00?) need to be plugged into a computer and it's all done by the sofware talking to a server in sweden or something, the technician never sees the pin code.

if you have an earlier car and a second hand working fob you might get lucky at a service department if you get someone nice, even if you can get them to tell you the pin code for your alarm system you can program fobs yourself with a proper obd2 usb tool. The biggest issue is "working fob", practically impossible to tell even if you have it in your hand and the battery clips are an absolute nightmare.
but it is possible.

Jul 15th, 2020, 16:08	#11
amazondean amazondean Last Online: Apr 15th, 2024 12:19 Join Date: Oct 2004 Location: Nettleton Market Rasen	The 850 models are easy. You just turn the key to the second position and back 5 times, then on the 5th time leave the key in position 2, ignition position (the light in the centre of the dash stays red), press the new remote button until the light in the centre of the dash flashes, then the new fob is programmed. __________________ There are only two things in life that is easy. One's lying down and the other is handing your credit card over. everything else has a degree of skill. Volvo 850 TDI, 850 TDI, 850 TDI Volvo V70 TDI, V70 TDI, Volvo V70 XC, (99)

Jul 15th, 2020, 16:56	#12
pff Junior Member Last Online: Aug 11th, 2023 19:23 Join Date: Oct 2013 Location: noway	to program the fob to the car you need to connect to the alarm module via obd2 and then send it a pin number unique to your car at which point you have a set time to push a button on the fob for the module to learn the fob. I think this is right if someone knows better please correct me: the earlier model cars (97/98?) used a hand held device and the technician manually looks up the pin on the database, later model cars (98-00?) need to be plugged into a computer and it's all done by the sofware talking to a server in sweden or something, the technician never sees the pin code. if you have an earlier car and a second hand working fob you might get lucky at a service department if you get someone nice, even if you can get them to tell you the pin code for your alarm system you can program fobs yourself with a proper obd2 usb tool. The biggest issue is "working fob", practically impossible to tell even if you have it in your hand and the battery clips are an absolute nightmare. but it is possible. __________________ V70 2000 P80 old style, green and white.

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