Honda 76400-SDA-A03 Mirror Assembly, Rearview (Day/Night)

Models from 2008 and later feature a Multiple Integrated Control Unit (MICU) and Gauge Control Module (GCM), which link several systems for straightforward and precise troubleshooting, requiring a professional-grade scan tool. The MICU or GCM controls various functions including door locks, power windows, ignition lock and security system, interior and exterior lights, Daytime Running Lights, horn, windshield wipers, heating/air conditioning, power mirrors, and hazard flasher system. For any malfunctions, it is advisable to have the vehicle diagnosed by a dealership service department or a qualified automotive repair facility. Most electric rear view mirrors utilize two motors for adjustments: one for vertical and one for horizontal movement. When adjusting the mirrors, the power mirror adjustment switch sends voltage to the respective side mirror. With the ignition key in the ON position (engine not running), operate the adjustment switch for both mirrors and listen for the sound of the electric motors. If the motors are audible but the mirror glass does not move, the issue lies within the drive mechanism. If there is no sound from the mirrors, check the fuse. If the fuse is intact, remove the power mirror adjustment switch and have its continuity checked by a qualified repair facility. Inspect the ground connections to ensure they are secure and free of corrosion. If the mirror remains non-functional, remove it and check for voltage at the mirror wires. If no voltage is detected in any switch position, examine the circuit between the mirror and the adjustment switch for faults. If voltage is present, test the mirror off the vehicle with jumper wires; if it fails this test, it should be replaced.