2004 Jetta 1.8t won't start after accident.

there is not one. If there is no power to the pump it will be either a fuse, realy, wiring or computer issue. If there is power to the pump but no fuel Pressure than the pump has likely failed.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

You tried it in neutral but did you take it out of park and force it back into park? Just a suggestion since sometimes the switch that tells it that it is in park needs a bit of a nudge sometimes.

the sensor keeping it from starting it is an inertia switch. it is a safety feature in case the vehicle rolls or is wrecked etc... it cuts the power to the fuel pump. generally it is located in the trunk of cars or in your case probably near the kick panel on the passenger side. usually has a button to pus to reset

either check your knock sensor, map sensor or fuel shut-off switch

Hello! I don't see a connection between the headlight issue and not starting...However I definitely see a connection with the accident and not starting...When you say "not starting" do you mean the starter doesn't crank the engine or it does crank the engine but won't start? Do you have a meter and a wee bit of experience using one? If you do we can isolate this fault together...Send a comment...Guru...Saailer

Ford products have an inertia switch to cut power to the pump in a wreck, I don't show a switch between the pump and the relay on a Chrysler.
If you have no fuel pressure you may have damaged the pump in the tank. A mechanic would check for voltage at the ASD relay in the engine compartment and then at the gas tank connector.

Hello, I usually work on Ford family brands, but I can tell you that some Vehicles have a fuel pump safety cutoff switch that can be reset with the push of a button. You can find out what your car has by checking with Autozone, Advance, or Oreilys autoparts and asking for an Inertia switch.
It sounds like your car is not getting gas and that means either the fuelpump is bad or the power is switched off at the Inertia switch. There is another part called a TPS(throttle position sensor) which controls the fuel to the engine.
If you have a "check Engine" light or a "wrench design" showing on the dash, it means the car knows what is wrong and a scanner needs to be hooked up to it. Then the car will tell the scanner what is broken.
The Inertia switch(if equipped) can be tripped by closing the trunklid or door at just the right frequency to break the connection to the fuelpump. You should be able to hear the fuelpump pressurize the system within 1-2 seconds of turning the key on.

Can not really tell you much more that you can do without you having pressure gauges or a scanner of your own.

Hello, Many times a fuel safety feature called an "Inertia sensor" will activate when a door or the trunk lid is closed hard enough to trip this sensor. You should find the sensor in the trunk on the Drivers' side of the car. The switch will be behind the carpeting and all you need to do is press a button on the switch to reset it. After doing that, your car should start if that was the problem.

If someone tried to use the wrong car key from another Ford product, then this can mess up the Security codes in the Anti-theft system. Should someone have tried to use the wrong key, you will need to tow the car to a Dealer for a reboot of the Security system.

I hope my solution is helpful to you.

Are you absolutely sure that you put the right weight oil back in the car? These cars are very sensative to this and if it doesn't see the correct oil pressure it won't start beacause it uses oil pressure to fire the fuel injectors. You need to be using 505.01 oil in your car only. Anything else can cause a no start or major engine damage!