98 Toyota rav4. The dash, tail lamps, and stereo all of a sudden decides to not turn on anymore. Also my alarm wont work anymore either. Brake lights and turn signals also doesnt work. I Checked the fuses under the dash and they seem to be fine. Switched them out and still doesn't work. Any suggestions?

Check the switch on the break peddle , thay can work loose or renewal good luck colin

This is a typica grounding error. You should try to add a good ground cable to your tail light. Sound strange but this often solves such issue:)

Adjust the brake pedal switch located on the upper side of the brake pedal under the dash. To adjust the stop light switch, disconnect the two wires attached to the rear of the switch, move the switch by loosening the lock nut towards the brake pedal. As soon as the center pin of the switch begins to touch the brake pedal notch, rotate the switch half turn more and lock it by tightening the lock nut. Connect the wires back and ask your companion to see the tail lamps while you depress and release the brake pedal. Or you can see the tail lamp behavior by parking the car on reverse at a distance of one foot from any wall.

tail is park, so turn off the parking lights ,.there are 20+ lamps
inside and out for park/tail/dim dash lamps.
do you mean stop lights stuck on, id bet so. (parks out)
so replace or adjust the brake lamp switch.
see alldata.com for full facts on topic.

The only thing that both the brake lights and tail lights use is a ground connection. Keep in mind the warning light on the dash may be for any exterior lamp. You may need to check the sockets and grounds on all four corners of the car.

TAIL LIGHT NOT WORKING

It can be faulty tail light bulb or its issue with tail light control switch or its wiring's are short.

Check the voltage at fuse slot of tail light.Do you receive 12 volt there.If not,then it says tail light switch is not receiving power supply.

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There are few help links related to your problem.I suggest you refer the list and check the help links.Click the link below:-----

Turn Signal Not working

http://technoanswers.blogspot.com/2012/11/turn-signal-not-working.html

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Right turn signal not working on Pontiac Car?

http://schematicsdiagram.blogspot.com/2011/12/right-turn-signal-not-working-on.html

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Only one side indicator light working on car?

http://schematicsdiagram.blogspot.com/2011/12/only-one-side-indicator-light-working.html

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Turn signals not working on 1987 Jeep Wagoneer?

http://schematicsdiagram.blogspot.com/2011/12/turn-signals-not-working-on-1987-jeep.html

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SOLVE YOUR 4 WAY FLASHER RELATED PROBLEMS HERE

http://repairhelpcenter.blogspot.com/2012/11/4-way-flasherturn-signal-flashersignal.html

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1994 Toyota Camry: Bypass Tail light Relay Circuit?

http://whatisbyme.blogspot.in/2012/04/1994-toyota-camry-bypass-tail-light.html

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2008 Toyota RAV4: Replace Tail light Lens Cover?

http://technoanswers.blogspot.in/2012/04/2008-toyota-rav4-replace-tail-light.html

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2003 Chevrolet S10 Tail light Fuse

http://schematicsdiagram.blogspot.com/2012/11/2003-chevrolet-s10-tail-light-fuse.html

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Chevrolet Parking light and Tail lamp light Wiring diagram

http://schematicsdiagram.blogspot.com/2012/11/chevrolet-parking-light-and-tail-lamp.html

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Car Tail Lights Not Working?

http://schematicsdiagram.blogspot.com/2011/12/car-tail-lights-not-working.html

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These details will help.

Thanks.

Then you need someone who can,like a repair shop

need more ifo

It can be faulty tail light bulb or its issue with tail light control switch or its wiring's are short.

Check the voltage at fuse slot of tail light.Do you receive 12 volt there.If not,then it says tail light switch is not receiving power supply.


---------
There are few help links related to your problem.I suggest you refer the list and check the help links.Click the link below:-----
1994 Toyota Camry: Bypass Tail light Relay Circuit? http://whatisbyme.blogspot.in/2012/04/1994-toyota-camry-bypass-tail-light.html

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2008 Toyota RAV4: Replace Tail light Lens Cover?

http://technoanswers.blogspot.in/2012/04/2008-toyota-rav4-replace-tail-light.html
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2003 Chevrolet S10 Tail light Fuse http://schematicsdiagram.blogspot.com/2012/11/2003-chevrolet-s10-tail-light-fuse.html
--------- Chevrolet Parking light and Tail lamp light Wiring diagram http://schematicsdiagram.blogspot.com/2012/11/chevrolet-parking-light-and-tail-lamp.html
---------- Car Tail Lights Not Working?

http://schematicsdiagram.blogspot.com/2011/12/car-tail-lights-not-working.html

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Turn Signal Not working http://technoanswers.blogspot.com/2012/11/turn-signal-not-working.html
---------- Right turn signal not working on Pontiac Car?

http://schematicsdiagram.blogspot.com/2011/12/right-turn-signal-not-working-on.html

--------
Only one side indicator light working on car?

http://schematicsdiagram.blogspot.com/2011/12/only-one-side-indicator-light-working.html

-----------
Turn signals not working on 1987 Jeep Wagoneer? http://schematicsdiagram.blogspot.com/2011/12/turn-signals-not-working-on-1987-jeep.html

-----------

SOLVE YOUR 4 WAY FLASHER RELATED PROBLEMS HERE
http://repairhelpcenter.blogspot.com/2012/11/4-way-flasherturn-signal-flashersignal.html

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Thesedetails will help.
Thanks.

the tail light issue could be just bad bulbs, check them with a meter ,, also, check the sockets for power to each contact point,, normally if the brake lights and flashers are working, the tail lights should too,, as far as the dash lights have you installed an after market stereo? If so a common problem is a wrong wire got grounded,The harness from the car to the factory radio has a wire for the dash lights that shows up as ground with the light off. When the lights are on the wire is 12V+. Check to see if you connected the ground from the new stereo to this wire. The radio will work perfect but everytime you turn thr park light on the fuse will blow...and the radio will continue to work. There should be a ground wire in the harness as well, ensure you connect the ground from the new stereo to this wire. there is a 15 amp fuse that blows, check them with a meter rather than by sight