There are a few possible causes for the driver side power-control not moving the right-side rear mirror on a 1992-1999 Chevrolet Tahoe:
# Faulty mirror motor: The motor that controls the right-side rear mirror could be faulty, preventing it from moving. This would require the replacement of the motor.
# Wiring issue: It is possible that there is a problem with the wiring between the mirror motor and the control panel on the driver's side. A damaged or disconnected wire would prevent the control panel from communicating with the motor.
# Faulty control panel: The control panel on the driver's side could be malfunctioning and not sending the signal to the mirror motor.
To troubleshoot the issue, you can try the following:
# Check the mirror motor: Remove the mirror cover and test the motor using a multimeter. If the motor is faulty, it needs to be replaced.
# Check the wiring: Inspect the wiring between the mirror motor and the control panel for any damage or disconnection. Repair or replace any damaged wires.
# Test the control panel: If the motor and wiring are both in good condition, then the control panel may be faulty. You can test the panel by checking the voltage at the control panel when pressing the button to move the mirror.
If you are unsure about how to perform any of these checks or repairs, it is recommended to take your vehicle to a certified mechanic or dealership for assistance.