2002 chevey avalanch wipers wont work how can I fix them

Generally the click is the starter solenoid engaging the fly wheel. The starter needs way more power than anything else in the car. It doesn't matter that the lights work. If the battery can't supply 10.5 volts under load, the starter won't turn. See if you can jump start the car and get to an auto parts store to have the battery checked.

Check your owners manual.
For dry payment, either one should be ok.

Thermostat comes to mind on this one.

Not sure on the throttle position sensor issue but the no cruise control issue can often be the brake switch. Very, very common. Switch is relatively cheap and it is easy to replace.

under the dash there is a relay for the wipers,you pull of the plastic cover under the steering wheel and you will see them right next to the fuse box, i believe it is the black relay.
when you call for a new one make sure you have the month/year car was made and the 8th digit of the VIN

check and test the wiper switch and bushings /bearings in the linkages

There is a relay in the battery junction box K140 and a 30 amp fuse F2.8 in the central fuse box inside the vehicle.

Take the line off the washer tank and also off at the squirter and if the line is clear change the washer fluid motor.

Both of your wiper arms ?
Pop off the little plastic caps on the wiper arms, they conceal, a bolt.
Tighten down bolt. Replace plastic cap.
There.... now I just shaved you about $ 500.00 that you would have spent on new wiper assembly and labor.
Please let me know how it went.

i have the same problem my avalanche wont crank, and the fuel gage dont go up, when the fuel gage works the truck starts but its been two days and it wont crank plz help...