360 Spider Remotes Don't Work Car won't Start

Turn batteries right side up!

 

Happened to me once in a 360. I was at a gas station. I rang my mechanic and he said sometimes cellphone sites especially around service stations can interfere with the remote (there was a cellphone tower above) I pushed the car off the forecourt and down the hill a bit and the remote worked and car started. The remote batteries were new from the garage.

 

Hey, you never know!
Did they all work before changing the fob batteries?
Or, did you have the problem and then changed the fob batteries?
Just looking for a common denominator.
Could one fob be "always on"? Stuck button? ie blocking the signal of the others.

 

What is the dash LED doing? Is it blinking?

There is an immobilizer fuse. If you're getting no response at all that's the first thing I'd check.

 

Do you have a Marmitek or similar ir receiver/ transmitter in the house for remote changing of tv stations, when these have a fault they screwup car remotes as on similar frequency

 

If you want to call me I can walk you through the possibilities.

 

Sounds like you put in the wrong batteries. They should be 12V and there are similar 3V batteries the same size that will not power anything in the fob.

 

Have you tried disconnecting the car battery, wait 30 minutes, Cool off a bit. Re-connect battery and let the car re-boot.

 

Does the car engine still turn over? Not sure about the 430, but on the 360 it just keeps turning and want start?

 

What about a fault with the siren immobilizer? They’re all connected yes?

 

alarm module, only thing i can think of
cut the plastic open and see what's happening inside

 

Yep. Alarm/immobilizer fault.

 

I suggest you contact 360trev and see what he says. If you don't know who he is, search for his posts. Might save you a few grand.

 

If it is the immobilizer module you can get a corvette module and it will work except for the alarm horn. A lot cheaper than OEM.

 

It's not the immobilizer it's the siren. You can try and work around the real problem or just replace the siren. I think you can find them discounted to around $300 or try the GM siren option.

 

Get the $40 GM fix and see if that solves the problem. If it does decide if you want the OEM component...at ~ $350.

Don’t go with a second hand OEM unit... probably same age, probably fail again.

 

Likely the alarm siren is shorting. When the internal backup battery inside the siren leaks, the acid eats the circuit and components. This could result in a short, although most of the time it causes an open circuit or failed components.


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