Q: How do I diagnose and troubleshoot electric rearview mirror issues in the Lexus ES300?
A: Electric rearview mirrors commonly utilize two motors for vertical and horizontal adjustments. The control switch directs voltage to the left or right mirror. With ignition ON and engine OFF, operate the mirror control switch for both mirrors while listening for motor sounds. If the motors sound but the glass doesn't move, there might be an internal drive mechanism issue requiring mirror disassembly. If no motor sound occurs, check the Fuse. If the fuse is fine, assess the mirror control switch's continuity after removing it from the dashboard. Reconnect the switch and test for a faulty ground connection by attaching a jumper wire between the ground wire and the switch. If issues persist, remove the mirror and check its wires for voltage using the selector switch. If voltage isn't present, inspect the circuit for opens or shorts. If voltage is present, test the mirror off-vehicle using jumper wires; replace the mirror if it fails this test.
Q: How do you remove and install outside mirrors and inside mirrors in Lexus ES300?
A: For outside mirror removal on power mirror-equipped models, start by removing the door trim panel and the plastic water shield. Pry off the mirror trim cover on the inside of the door. Disconnect the electrical connector from the mirror (if equipped). Remove the three mirror retaining bolts and detach the mirror from the vehicle. Installation is the reverse of removal.For inside mirror removal, gently pry between the mirror mount and the notch in the base of the mirror stalk using a screwdriver tip covered with tape. A hairpin-type spring holds the mirror stalk in the base. Push the screwdriver in about 1/16 inch to release the spring. To install the mirror, reinsert the spring if it was removed earlier. Insert the mirror stalk's lug into the mount, pushing downward until the mirror is secured. If the mounting plate itself has come off the Windshield, adhesive kits are available to resecure it. Follow the instructions included with the kit.Please note that the information provided is a summary of the removal and installation steps for mirrors. Actual procedures may vary depending on the specific vehicle model and year. Always refer to the vehicle's service manual or consult a professional mechanic for detailed and accurate instructions.