No power to interior lights, nopower to the radio, no power to the trunk, all amp fuses are not broken please respond.

Interior trunk switch ? trunk light switch ? Fuse 6A blue 15 amp fuse .location - IP - instrument panel fuse box .

u may also have busted the relays

Some vehicles have a primary fuse box under the hood, these have heavy duty 20-60 amp spade fuses, usually located close to the battery, some supply sections of the interior fuse panel, if you pop one of these a lot of things will not work, hope ill fixya

Sounds very much like two possibles a short in the fuse box to the non working parts or your battery went dead and was recharged and you did not reset these items. As what U mention all sound like the equipment that needs to be reset when you change a battery or it goes dead.

Sounds like one of the door triggers has continuity to earth,(Shorted) Test them all with a multi meter.

Cheers CeeBee

Fuse Locations & Functions
1. Washer nozzle heaters, glove compartment light (10A).
2. Turn signal lights (10A).
3. Fog light relay, instrument panel light dimmer switch (5A).
4. License plate light (5A).
5. Comfort system, cruise control, A/C, steering wheel module (7.5A).
6. Central locking system (5A).
7. Back-up lights, speedometer vehicle speed sensor (VSS) (10A).
8. Open
9. Anti-lock brake system (ABS) (5A).
10. Engine control module (ECM): gasoline engine (10A)
11. Instrument cluster, shift lock solenoid (5A).
12. Data Link Connector (DLC) power supply (7.5A).
13. Brake tail lights (10A).
14. Interior lights, central locking system (10A).
15. Instrument cluster, transmission control module (TCM) (5A).
16. A/C clutch, after-run coolant pump (10A).
17. Open.
18. Headlight high beam, right (10A).
19. Headlight high beam, left (10A).
20. Headlight low beam, right (15A).
21. Headlight low beam, left (15A).
22. Parking lights right, side marker right (5A).
23. Parking lights left, side marker left (5A).
24. Windshield washer pump, windshield wiper motor (20A).
25. Fresh air blower, A/C (25A).
26. Rear window defogger (25A).
27. Motor for rear windshield wiper (15A). (if equipped)
28. Fuel pump (FP) (15A).
29. Engine control module (ECM) gasoline engine (15A)
30. Power sunroof control module (20A).
31. Transmission control module (TCM) (20A).
32. Injectors: gasoline engine (10A)
33. Headlight washer system (20A).
34. Engine control elements (10A).
35. 12 V power outlet (in luggage compartment) (30A).
36. Fog lights (15A). (if equipped)
37. Terminal (86S) on radio, Instrument cluster (10A).
38. Central locking system (w/ power windows), Trunk light, fuel door, Trunk lid (15A).
39. Emergency flashers (15A).
40. Dual tone horn (20A).
41. Cigarette lighter (15A).
42. Radio (25A).
43. Engine control elements (10A).
44. Heated seats (15A). (if equipped)

Fuse arrangements in fuse bracket/battery:
S162. Glow plugs (coolant) (50A).
S163. Fuel pump (FP) relay/glow plug relay (50A).
S164. Coolant fan control (FC) control module/coolant fan (40A).
S176. Relays panel interior (110A).
S177. Generator (GEN) (90 Amp.) (110A). Generator (GEN) (120 Amp.) (150A).
S178. ABS (hydraulic pump) (30A).
S179. ABS (30A).
S180. Coolant fan (30A).

How can I adj. . a trunk light switch on a 02 Buick Century

There is most likely a fault in the system and it will have to be reapired by certified tech

Under the hood on the fender well,Big black fuse box.Fuses are marked on the cover.

The horn and the flashers are controlled by the 15 amp HAZ-Horn fuse.
The trunk light is powered by the 20 amp Dome light.
The radio is powered by the above Dome fuse, and the 15 amp Radio & CIG fuse.
With a 12 volt testlight, check for power on BOTH sides of the above fuses. If you have no power to either side of the fuses, you have an open circuit under the hood that feeds said fuses: Look for an open circuit in the main fusible link coming right off of the battery positive terminal to the wiring harness.