Key fob / batteries
Discussion
I found this on LS1.com.au, here is the link www.ls1.com.au/forum/showthread.php?t=31609&highlight=vx+vt+key+battery .
"" Hi, I'm an electronics technician and have replaced a number of batteries in these key remotes, so thought I'd pass on what I know. As long as you're careful in cracking it open, de-soldering the old, dead battery and soldering in a new one, there's nothing very tricky about it.
Quote:
Originally Posted by vt748
I just bought a couple of key heads off ebay for about $40 i think, and the local auto sparky programmed them for me for $25. He said to swap keys every week as the battery is charged when the key is in the ignition but I am not sure how true that is.
No that's not true. As mentioned by others, the battery is a type CR2032 which is a 3V (220mAh) Lithium battery and non-rechargeable. When it's flat, it's flat.
Quote:
Originally Posted by Rt!
in answer to your question: yes the keypad does store the code after battery has been removed. If it didnt, then you should be able to program different codes onto your key.
Yes that's right. The code info is stored in non-volitile memory and is not lost if there is no battery power. There is no need to go to all the trouble of hooking up other batteries when removing the old one and fitting a new one. Let's face it, that doesn't make sense as there's already no battery volts from the dead one!
Quote:
Originally Posted by -HSV-
we've been going to do this at with an old remote for a while now. once you put in the new battery is the keyhead like a new one or will it still have saved memory and programmed to the car it did work on? if it needs t be reprogrammed, then this will be pretty good news, as we could use to suit another vehicle.
No, it will retain all the coding info and only be useable on the original vehicle. If you want to use it on another vehicle it'll have to be re-coded to that by a dealer or key service if there's one that can do it in your area.
I've come across another problem recently. An electronic component inside the key-fob has failed and now the remote only produces a signal strong enough to activate the locks when within about 300mm from the receiver sensor on the dashboard. I've been trying to find an old dead key-fob so I can scavenge the component from it to make a repair. So far I've had no luck here so if anyone can help, I'd appreciate it. Don't need a working key or even one with a blade, just the guts of the remote.
Hope the info helps. Thanks.""
I have used this company www.polmex.com.au/ to replace the buttons on my HSV key, they work fine and are much easer than getting a new key.
"" Hi, I'm an electronics technician and have replaced a number of batteries in these key remotes, so thought I'd pass on what I know. As long as you're careful in cracking it open, de-soldering the old, dead battery and soldering in a new one, there's nothing very tricky about it.
Quote:
Originally Posted by vt748
I just bought a couple of key heads off ebay for about $40 i think, and the local auto sparky programmed them for me for $25. He said to swap keys every week as the battery is charged when the key is in the ignition but I am not sure how true that is.
No that's not true. As mentioned by others, the battery is a type CR2032 which is a 3V (220mAh) Lithium battery and non-rechargeable. When it's flat, it's flat.
Quote:
Originally Posted by Rt!
in answer to your question: yes the keypad does store the code after battery has been removed. If it didnt, then you should be able to program different codes onto your key.
Yes that's right. The code info is stored in non-volitile memory and is not lost if there is no battery power. There is no need to go to all the trouble of hooking up other batteries when removing the old one and fitting a new one. Let's face it, that doesn't make sense as there's already no battery volts from the dead one!
Quote:
Originally Posted by -HSV-
we've been going to do this at with an old remote for a while now. once you put in the new battery is the keyhead like a new one or will it still have saved memory and programmed to the car it did work on? if it needs t be reprogrammed, then this will be pretty good news, as we could use to suit another vehicle.
No, it will retain all the coding info and only be useable on the original vehicle. If you want to use it on another vehicle it'll have to be re-coded to that by a dealer or key service if there's one that can do it in your area.
I've come across another problem recently. An electronic component inside the key-fob has failed and now the remote only produces a signal strong enough to activate the locks when within about 300mm from the receiver sensor on the dashboard. I've been trying to find an old dead key-fob so I can scavenge the component from it to make a repair. So far I've had no luck here so if anyone can help, I'd appreciate it. Don't need a working key or even one with a blade, just the guts of the remote.
Hope the info helps. Thanks.""
I have used this company www.polmex.com.au/ to replace the buttons on my HSV key, they work fine and are much easer than getting a new key.
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