Car won't start. Snow chain ( asr) switch lights up red. Only happens when I lock/unlock car via trunk. Disconnected battery and no result. Took out all fuses one by one and the car started but now it's back to not starting. Seems to be some kind of weird alarm/trunk issue. Also now the light wont shut off in car. 1995 e320

After Market alarms are always full of issues especially when the batteries are disconnected of the car batteries are disconnected.

Find a Viper Alarms installer and take it in for reprogramming with their pro grade scan tool computer.

Remote starter in valet mode Symptoms: Lock and Unlock buttons work as normal, but pressing Start does not produce any response from the vehicle.
Causes: Someone accidentally pressed the combination of buttons to put the car into valet mode, usually when the remote is in a purse or pocket. Also, many remote car starters will revert to valet mode when the vehicle is disconnected for service.
Hood Pin Has Broken or Failed Symptoms: Pressing Start results in several flashes of the parking lights but no start. If equipped, Lock and Unlock still function.
Cause: In most cases, the under-hood pin switch is broken or corroded.
Remote Control Loses Programming Symptoms: Pressing any button on the remote results in no response from vehicle.
Cause: It is rare, but does happen - in most cases, this is caused by a dead battery in the vehicle or the battery having been disconnected when being serviced.
Remote starters usually have some type of non-volatile memory to retain things like programming features and remote control codes. Like any "computer" device, sometimes they lose memory. When this happens, simply call the store that installed it for you. In some cases, they may be able to tell you how to reprogram it over the phone. Other times, you will have to return to the store for a technician to program it. In any case, this is rare with higher-end remote starters.
Remote is in Second-car Mode Symptoms: Pressing any button on the remote results in no response from vehicle.
Causes: A combination of buttons were accidentally pressed, which put the remote in second-car mode.
Again, this is very rare, but happens from time to time. Many remote car starter remote controls have the ability to start two vehicles. If the remote is accidentally placed into second-car mode, it will not start or operate vehicle #1.
Simply read your owner's manual or call your installer for directions on how to revert the remote back to car #1.

the valet key doesnt have a transponder chip in it, so it will allow physical turning of keyways and operations, but will not disable the alarm and often wont disable the immobilizer.

sorry to say i think you will need to get an autolocksmith , or main dealer to get you a functioning key with transponder chip mapped to your cars rfid system that will allow alarm to be enabled /disabled

it is very possible for the lights to drain the battery. to the second question, if you were to unplug the switches, it should turn the lights off. along with this, no you wouldn't be able to use windows. you may have to replace the switch due to water damage.

Just a quick note once you hook the battery back up try locking it and unlocking it from the drivers door, if that fails you might try the passenger door. I know on some chrysler products you have to lock and lock again to arm and unlock to disarm. I hope this helps.
Thanks,
Joey

Assuming the car battery is ok (if not, buy a male to male cigarette lighter at the auto store and connect to another car until charged enough to unlock the doors...but don't try to crank the ignition!). The trunks won't open if the battery went dead with the alarm set because arming the alarm physically locks the releases.

Sounds like the key code is switched off because you replaced the key fob battery. Try unlocking the car manual with the key in the door lock. Then switch the ignition on to reactive the keyless entry. If this does not work, you might also try pressing the fob unlock button with the key in the door lock until the dash led flashes.

My Passat did the same thing for a while. Where do you carry your keys? My key was activating in my pocket over a long range and popping my trunk open. If that isn't a possibility, you can simply lock the truck in via the control switches over the speaker. Just turn the key to locked. Try that if nothing else, just remember to unlock it when you need to us the trunk :)

When you disconnected the battery, you tripped the alarm which locked down everything. In your owners manual, look under the security or alarm system. It will tell you how to disarm your particular alarm system. If I am not mistaken on these you put the key in the drivers door and lock and unlock it 2-3 times. If you do not have the owners manual, you can contact dodge and they will walk you through it.

I want to let you know right from the start im going to be a smart ***.

but here's how to fix it :

1. Get an Old Priest
2. Get an Young Priest
3. Have an Exorcism done on the car
4. If this doesnt take care of it, its the devil, burn it.

  There is a lock cylinder located behind the drivers seat that is actuated by the ignition key.