[dedzaboy]

Hi all, I've just bought a 2008 CR-V, imported from Japan to Grenada. I have a flashing light on the dash telling me the key fob battery is low, so being the cautious type thought I'd try a new battery in the spare fob first, just in case something strange happened and it didn't work I'd still have the main fob to use. So, I removed the existing CR2032 battery (which showed about 2.6V with a multimeter) and replaced it with a new one. Now when I press either of the two buttons the red LED on the remote flashes quickly 5 times (more or less) but doesn't operate the door locks, nor can I turn the ignition; I should point out that there is no ignition key, just a round knob that you turn like you would a key - if the fob / remote is in the car (usually in my pocket) this will work, if not it won't - I think this is quite unusual and maybe a Japanese market only setup; there is an emergency key hidden in the remote that can be removed and used if necessary.
However, if I remove the new battery (which shows over 3 volts) and put the old one back, all works again. I tried a different new battery too, so one Maxell and one Panasonic (which is the same brand as the old battery), same result.
Any ideas? Thanks in advance.

 

[otto888man]

Just wanted to clarify. You use the same model as the original battery? Can you check the voltage once the new battery is inserted into the fob? You might have a bad batch of new batteries.

 

[dedzaboy]

Both new batteries read over 3 volts, more than the old battery

 

[dedzaboy]

The second new battery i tried was Panasonic, same as the old one. Can't check the voltage once it's in the remote though

 

[otto888man]

Are the new batteries have the same model # as the old battery?

 

[dedzaboy]

Yes, exactly the same but new with more (correct) voltage

 

[otto888man]

That's weird the new ones have the right voltage. But the old one has less voltage but it works. Look at the profile of the old one to the new one.