2000 gmc jimmy pwr lock problems

lost pwr locks and rear window release. no blown fuses, no burt wiring. totally confused.:banghead:

lost pwr locks and rear window release. no blown fuses, no burt wiring. totally confused.:banghead:

Does the PWR/LXS and MIR/LXS fuses have 12 volts on them?
Does the power lock switch have 12 volts to it on orange wire?
Any body PCM codes?

You probably have dirty switches. that is to say they are probably dirty at the multi-pin connection point. Try cleaning with tuer cleaner and give them a
"jiggle" as you simultaneously work the switch.