Can someone give me some help?? my reverse lights and all interior lights are not coming on anymore. we have tried the fuses and are now thinking relays. any thoughts would be appreciated!

Can someone give me some help?? my reverse lights and all interior lights are not coming on anymore. we have tried the fuses and are now thinking relays. any thoughts would be appreciated!

first off these circuits are separate....so at the same time or different time this occured???? courtesy lights fuse CTSY LP 15AMP feeds the interior lights...this has 2 relays ipr and cpr... these relays are controlled by the BCM....so lets say this fuse is good and you get no ground at the coil relay pin86 on these relays then your BCM may be defective.


the back up lights use fuse B/U LP 25AMP go to the neutral switch then VEH B/U FUSE 15AMP to back up lamps....

so as you can see you have 2 separate circuits that are damaged....


do you have a rodent problem????????? could be!

we actually live deep in the mountains of bc so maybe. hmmm something to think about. ill check it out and get back to u. thanks

and i think they both went out at the same time. what is a bcm? and what do u mean "no ground at the coil relay pin. where do u think i should start? buy new relays or... i dunno im a bit lost. dont wanna pay chevy to do something i can do myself. thanks.