Remote Battery causing start then stop problem.

[rambunctious]

This applies to my VZ but would also apply to others, and has been discussed before and is actually 2 problems.

One is the car starting then immediately stopping so have to remove the key, then restart the car.
The other is the remote battery needing to be replaced.

I used to have the start then stop problem and I have always believed it had something to do with the remote not having enough charge in the small 2032 battery.

January last year I fitted a new starter and seemed to stop the start stop problem.
Then this January I fitted new car battery which did not change things, then 2 weeks ago the car did the start then stop trick again but this time I simply changed to my other remote which I know had a good battery in it and since then no problems.

So I am leaning toward the remote battery definitely having something to do with the start then stop problem some of us experience from time to time in our commodores.

These batteries are all of about $5 and are easy to replace by simply undoing the 2 screws holding the key then opening the case with a large screwdriver, then use a small screw driver to break the tabs off the small battery, then bend the tabs down so it holds the new 2032 battery and close the case using 3 or 4 small spots of super glue.
Then refit the key and screws.

I've done this about 4 times now so it's easy and I have never used the batteries with the tabs attached as others have.

Now yet another question that comes to mind is that I have read on here that the battery in the remote is recharged by the pin in the remote touching the ring on the ignition, but I am having trouble believing this one as the batteries I am using, 2032, are not the rechargable type and I would think why would these batteries then not catch fire because I know one should not recharge a standard 2032 battery.

Just my 2 cents worth.

 

[Fu Manchu]

The battery is not recharged.
The slip ring and key head contact pin will have two functions. The passing of data from the key and in the event of a low key battery voltage condition, three volts is supplied to the key head via the slip ring. This means even with a flat battery in the key, the car starts.

The key and its circuit is earthed via the key blade and the ignition barrel. If the barrel is loaded with grot or there is a poor Earth attached to the barrel, suss things can happen.

Sometimes the pin is pushed in and only makes temporary contact with the slip ring. This results in a stop start condition.

 

[rambunctious]

The battery is not recharged.
The slip ring and key head contact pin will have two functions. The passing of data from the key and in the event of a low key battery voltage condition, three volts is supplied to the key head via the slip ring. This means even with a flat battery in the key, the car starts.

The key and its circuit is earthed via the key blade and the ignition barrel. If the barrel is loaded with grot or there is a poor Earth attached to the barrel, suss things can happen.

Sometimes the pin is pushed in and only makes temporary contact with the slip ring. This results in a stop start condition.

Well that explains it better, now I fully understand how it works.
Thank you.

 

[figjam]

These batteries are all of about $5 and are easy to replace by simply undoing the 2 screws holding the key then opening the case with a large screwdriver, then use a small screw driver to break the tabs off the small battery, then bend the tabs down so it holds the new 2032 battery and close the case using 3 or 4 small spots of super glue.
Then refit the key and screws.

I've done this about 4 times now so it's easy and I have never used the batteries with the tabs attached as others have.

Just for curiosity, I dug out an old key head last night, (forgotten what it was from, either the VT or the VY) and pulled it apart to explore as per above.
2 screws, no worries.
Lever it apart, nope, must be doing something wrong. Gotta get a bigga screwdriver to do that. Yep, that did it ......... cracked / broken.
That little silicone gasket must be the strongest seal known to mankind.
Bend the tabs back ...... you must be joking, they are welded on, and I gave up before I put a screwdriver through my hand.

Anyhow, it is completely Roo Ted now, but no loss, and another little reminder as to why I don't DIY car stuff anymore

 

[Fu Manchu]

The factory keys are sealed. It’s the aftermarket ones that you can open easier. You normally have to superglue them closed. What you are best to use is your factory key circuit board and put that inside the aftermarket key shell.

 

[figjam]

Yeah but ......... this head was most likely ex-factory, and to replace the battery would require FUBAR-ing the tabs, and that would require a steady handed electronics guru to reattach the battery, before putting the circuit into a new shell.
Probably why, 20 years ago (?), I had the blade put in an aftermarket head by a locksmith.

 

[rambunctious]

Just for curiosity, I dug out an old key head last night, (forgotten what it was from, either the VT or the VY) and pulled it apart to explore as per above.
2 screws, no worries.
Lever it apart, nope, must be doing something wrong. Gotta get a bigga screwdriver to do that. Yep, that did it ......... cracked / broken.
That little silicone gasket must be the strongest seal known to mankind.
Bend the tabs back ...... you must be joking, they are welded on, and I gave up before I put a screwdriver through my hand.

Anyhow, it is completely Roo Ted now, but no loss, and another little reminder as to why I don't DIY car stuff anymore

Fu Man is likely correct in using aftermarket cases and both of my remotes are sedan type with the boot button not required on a wagon.
I believe I remember using new cases and getting the tabs off the battery is as simple as levering under the tabs with a screw driver until they separate from the battery.
Can't remember much from when I separated the tabs on my batteries but don't remember spiking my hand.
But having spiked my hand many times in the past I am more patient and careful these days.