96 Isuzu Trooper anti theft reset. I have tried the suggested methods on locking the car and unlocking with the key from the passanger side. System still will not allow me to start the car. Ant suggestions? Can the system be bypassed? Or is the another way to be sure the syaytem has been reset?

Here are a couple of things to try: Method 1: Step 1: nsert the key into the door lock. Use the side door on the driver's side and the physical key even if there is a keyless entry system on the car. Step 2: Turn the vehicle key to unlock the car door without releasing it. Hold the key for 30 seconds in the position. https://www.popalock.com/franchise/houston-tx/local-locksmith-blog/how-to-shut-off-your-cars-anti-theft-device/

Method 2: https://www.cargurus.com/Cars/Discussion-d180_ds768140

try this

Method 1 of 3: Check your key and cylinder

Step 1: Check your key fob battery. A car's anti-theft system may activate if your key fob battery is dead and hasn't disabled the system.
Make sure the battery is installed correctly in your key fob. If the battery is correctly installed, replace it with a fresh battery and try again.
Step 2: Check your door lock cylinder. If your car has been damaged in an attempt to steal it or break into it, the anti-theft system may have been engaged.
Check for damage to the lock cylinder itself or under the door handle where would-be thieves may have punched through with a screwdriver. If the lock is damaged, try using the passenger side cylinder if your car has one.

• Note: While the driver's side door lock is damaged, typically the passenger side won't also be.

Step 3: Check that you are using the proper key to start your car. Many cars have a "valet" key or a door key that only performs certain functions such as unlocking the doors.
"Valet" keys are often distinguished by a "V" on the key shaft or a different-colored key head. The key you are using may not have the chip required to start your car.

Method 2 of 3: Turn the ignition on

If the anti-theft system has locked up your engine, you won't be able to start it. You'll have to disable it with these steps.
Step 1: Check for the anti-theft light. It's located on your dash and will have a blue or red light.
Step 2: Turn the ignition to the "on" position. Insert the key into the ignition and turn it to the on position, which activates your accessories but not the engine.
Leave the key in position for about 10 - 15 minutes.
Step 3: Check the anti-theft light again. If it's no longer blinking, turn the key back to the Off position and allow it to set for a minute or two.
This gives the system time to reset or you won't be able to start your car.
Step 4: Start the engine. Attempt to start your engine.
If it still won't start, check to make sure the battery hasn't been drained.
Step 5: Repeat the process. Try the process over again to see if it will work.

Method 3 of 3: Use the key in your car door

Step 1: Insert your key in the lock on the door. Use the driver's side door and the physical key even if your vehicle is equipped with a keyless entry system.
Step 2: Turn the key. Turn the key to unlock your car door, but don't release it.
Hold the key in this position for 20 to 30 seconds. This lets the system know you have the correct key, and it can allow you to bypass the alarm system. Some vehicles recognize the key simply by turning the key back and forth in the door lock key cylinder.

• Tip: Try turning the key both ways fully to disable the anti-theft system.

Step 3: Try to start the engine. Remove the key and try to start the engine.
Be sure to leave the key cylinder in the unlocked position.
An anti-theft system that prevents your car from running properly is a nuisance, and while you may be thankful for it in the event of a crime, it is now causing you a great deal of inconvenience, which these steps have hopefully helped you resolve. If your car still won't start, you should consult with a professional from YourMechanic to determine if there is another issue that is preventing your car from starting.

The problem may not be with anti-theft but with a bad fuel pump,cam/crank sensor etc. Also, you may try unlocking the drivers door with the key. On most cars that is the standard method for disabling the security system.

Here are two methods to reset the anti-theft system on 2007 Chevy Malibu:
1st method
1. Put the ignition in on position, let it breathe for 10 minutes, and remove it when the anti-theft system light stops blinking.
2. Crank up the engine; it should now start
2nd method
• While outside the car, press and hold the lock and unlock button together
• Let go when the car honks and the lights flash
• Put the key in the ignition and rotate to the ON position, and leave there for 30 seconds
• Switch on the car, and the anti-theft system would have reset

will the anti theft system stop your car from starting ? if so how do i rest it on a 1998 isuzu trooper

Try re-setting the computer...Disconnect the negative terminal of the battery and leave off for 5-10 minutes. This will allow the computer to reset. The charger may have interupted the signal or something.

easy- close all doors, put key in drivers side door first, then lock/unlock 3 times, then go to passanger side, lock/unlock 3 times and thats it!

With the doors shut, insert the key into the drivers door lock. Lock and unlock the door 5 times. This should reset the system. If that doesn't work you should contact a qualified repair shop.

i put a new stereo in my 1998 isuzu trooper now the anti theft wont let car start what do i do

you should be able to use the key to unlock the driver door or the back hatch and that should disable the anti theft.