when i started truck the interior lights did not work and the "cargo light on" on 2001 Chevrolet Silverado 2500 HD

you can't turn the cargo light and and you can't manually turn on interior ights all bulbs are good

Asked by for the 2001 Chevrolet Silverado 2500 HD
The interior lamps is controlled by the body control module, BCM. Some testing would probably be required to figure out if all the inputs and outputs are OK. Then based on that we would know what the resolution would be. We could look at it next week if you like. John O'C