2001 Volvo C70 convertible - Remote Controls Stopped Working after flat battery

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Anvar
Posts: 2
Joined: Sat Mar 02, 2019 7:35 am
Year and Model: 2001 C70 converable
Location: London

2001 Volvo C70 convertible - Remote Controls Stopped Working after flat battery

Post by Anvar »

Hi guys,

Recently, my car battery died and I had to call AA. After the battery replacement, both of my remote controls stopped working and it looks like the alarm is not working either as the LED light for the alarm is not lighting up at all.

So far I have researched the problem online and done the following:

1 - Changed the batteries on both of the remote controls (CR2016 3v)
2 - Checked the fuse box on the bonnet. Fuses for alarm, remote control and central locking are all fine.
3 - Disconnected the car battery for a few minutes and reconnected it.
4 - Followed the instructions from this post. https://itstillruns.com/volvo-keyless-e ... 52333.html
5 - Tried to lock/unlock the car while pressing the lock/unlock buttons(separately) on the remote control.

Any suggestions?

Many thanks in advance!

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abscate
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Post by abscate »

Get a full charge into the batttery, a good 10 amp,charger for a 24 hour period

Then

Lock and unlock the doors with the key in the,driver door a series of five times.
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Anvar
Posts: 2
Joined: Sat Mar 02, 2019 7:35 am
Year and Model: 2001 C70 converable
Location: London

Post by Anvar »

Thanks, buddy! Recharged the battery, locked and unlocked the door from the driver side 5 times, tried the procedure several times with no luck.

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