I have no tail lights or dash lights. I DO have head lights, turn signals, and brake lights. when i use my key pad to lock the doors all the lights flash including the lights the wont come on while the van is running. The lights DON'T come on when i turn the head light switch on. My daytime running park lights come on during the day and the automatic heads lights come on when it starts to get dark . The park lights and headlights DON'T come on together. I have already tried replacing ALL the bulbs and fuses and I still don't have tail lights. What could be the problem

Not the turn signal switch if the dash is out also. Check the fuse for the dash/illumination first. If good, then you have a power or ground problem to the switch. If bad and they come on, replace the turn signal switch.

Maybe a broken or lose wire. The turn signal and brake lights operate from one wire and the tail lights operate from a separate wire. It is possible that the tail light elements burned out of both bulbs. Pull the bulbs out and check them first.

The dash and tail lights are on two different circuits, and the brake and turn signals are on different circuits, so at least 4 circuits total.
I would start at the headlight switch and check for power on the first two issues.

A simple 12v test light will track this problem down.(Unless someone has been butchering the wiring,it's probably a bad headlight switch).

Check the tail light bulbs, check to make sure the dash lighting switch is turned up but not turned so far up that the interior lights come on when the door is closed.

If you have checked the fuses for those two circuits and they have power, the next step would be testing the headlight switch.

head light control module under dash driver side

Hope this helps your out. I know the diagram and locator is a bit blurry but hopefully it gets what you need.
Drivers kick panel:
Front wiper 20A - Front wiper system Cigar 15A- Cigarette lighter Audio 10A- Audio, remote control mirror Air Bag 10A -Air bag diagnostics Stop lights- 15A -Rear brake light, high mounted stop light ECU B+ 10A - Shift lock actuator, transaxle controle module, radio, engine control module Room 10A - Interior light, clock, ignition key reminder, rear cargo area light switch ABS 10A- Anti lock brake system control unit ECU IG1 10A - Transaxle control module, shift lock actuator, ABS control unit, DRL unit Meter 10A - Instrument panel, back-up switch, electronics time control module, inhibit switch Turn signal 10A- Hazard switch ,front and rear turn lights, turn indicator IGN1 20A - Ignition switch ABS 30A- ABS pump motor TNS 30A- Tail light, license plate light COOL/FAN 30A- Cooling fan Cond/Fan 20A- A/C condenser fan Starter 15A- Start signal , Fuel pump Blower 25A- Blower Motor SR/ACC 10A - Ignition switch Hazard 15A - Hazard and turn signal light D/Lock 25A- Door locks ABS 30A - Anti lock brake system control P/W RH 20A- Power window motor right hand P/W LH 20A- Power window motor left hand IGN2 25A- Ignition Switch
Engine compartment :
Head 25A- headlights IG 2 30A- Ignition switch IG coil 15A -Ignition coil, condenser,generator IC regulator, diagnostic connector. O2 down 10A- Rear O2 sensor O2 up 10A- Front O2 sensor Fuel pump 10A -Fuel pump unit Injector 10A -Fuel injector ,camshaft positioning sensor, purge solenoid valve, EVAP, IAC actuator, Mass Airflow sensor, EGR stepper motor. fuel pump relay coil, vehicle speed sensor. A/Con 10A - A/C compressor controls, cooling fan BTN 30A- Brake light , high mounted stop light. Tail light LH 10A- License plate light, tail light , rear combo light, instrument panel illumination Tail light RH 10A-License plate light, tail light , rear combo light, instrument panel illumination Head low 15A- Headlight Head Hi 15A-Headlight Horn 15A- Horn

Inside kick panel

Sounds like a blown fuse or a ground wire broke.

you have one of two problems the first one is either a blowm fuse that is probably marked prk lghts check you fuses or you could have a bad light switch