Blown Fuse: The power locks and windows are powered by electrical fuses, so if one of the fuses has blown, it could prevent them from working. Check the fuse box in your Solara and see if any of the fuses related to the power locks or windows are blown. If so, replace the blown fuse with a new one of the same amperage.
Faulty Switch: The power locks and windows are controlled by switches on the driver's door, so if one of the switches is faulty, it could prevent them from working. Try pressing the lock and window switches several times to see if they start working. If not, you may need to replace the faulty switch.
Damaged Wiring: The wiring that connects the power locks and windows to the electrical system could be damaged, which could prevent them from working. Check the wiring harness that runs from the driver's door to the fuse box and look for any signs of damage, such as cuts or breaks. If you find any damaged wiring, you will need to repair or replace it.
Malfunctioning Actuator: The power locks and windows are operated by actuators, which are electrical motors that convert electrical energy into mechanical movement. If one of the actuators is malfunctioning, it could prevent the locks or windows from working. You can try tapping on the actuator to see if it starts working. If not, you may need to replace the faulty actuator.
Problem with the Central Control Module: The central control module (CCM) is an electronic device that controls many of the electrical systems in your Solara, including the power locks and windows. If the CCM is malfunctioning, it could prevent the locks or windows from working. You can try resetting the CCM by disconnecting the battery for a few minutes and then reconnecting it. If that doesn't work, you may need to have the CCM diagnosed and repaired or replaced.
