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Key fob remote

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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VolvoFreak
Posts: 121
Joined: 28 February 2005
Year and Model:
Location: Central NY State

Key fob remote

Post by VolvoFreak »

If I replace the little battery in my remote door unlock key fob, will I need to reprogram it to work again or is this stored in a non-volitle memory chip? Also, I only have one of these, if I buy one off ebay as a spare will I be able to use both? Thanks...

It's a '93 850glt btw

Jot
Posts: 593
Joined: 24 January 2005
Year and Model: C30 2010
Location: Orr's Island, Maine

Post by Jot »

Yes you can program 2 for the same vehicle and yes you will need to reprogram it if you change the battery. What is the part # I might have a compatable one for you.

VolvoFreak
Posts: 121
Joined: 28 February 2005
Year and Model:
Location: Central NY State

Post by VolvoFreak »

Well, I got a new battery, did the reprogramming thing in the parking lot at Radio Shack and nothing. I gave up, went to AutoZone to get a new headlight bulb and locked the door with the key. When I came back out, I tried the remote and it worked fine. :? Is this an added step for certain model 850's? Do I need to do the key to start 5-times within 10-second thing and then lock the doors manually?

Jot: I can't read the damn numbers on the back of this thing - I think I need a microscope they are do small! I'll get back to you on that...

Guest

Post by Guest »

Off - On 5 times leave it in the on position. It's better to do it at night or somewhere dim cuz you'll see the led at the top of the dash light up. For the key fob you just need to know if the buttons are side-by-side or stacked on top of each other.

VolvoFreak
Posts: 121
Joined: 28 February 2005
Year and Model:
Location: Central NY State

Post by VolvoFreak »

Guest wrote:Off - On 5 times leave it in the on position. It's better to do it at night or somewhere dim cuz you'll see the led at the top of the dash light up. For the key fob you just need to know if the buttons are side-by-side or stacked on top of each other.
That's exactly what I did, but it didn't work until I locked the doors with the key. They are side-by-side.

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