1996 Tahoe 2 dr. Dash Rear Wiper and Hatch switch lights not working?

[RangerZ71]

96 2 door Tahoe dash rear wiper and hatch switch lights not coming on with headlight switch on. All dash and courtesy lights work. I've checked for power on the grey switch wires and have no power with light switch on. The switches work fine for operation, rear washer and wiper work and the hatch opens like it should, just no lights on the switch? Any help would be appreciated.