Remove the front door inside quarter trim panel (A).
Disconnect the power outside mirror connector from the wiring harness.
Apply battery voltage to each terminal as shown in the table, and check that the mirror operates correctly. [Mirror Control (LH/RH)][Puddle Lamp][BSD Indicator][Mirror Heater][Side Repeater Lamp]
The body electrical system can be quickly diagnosed for faulty parts using the Global Diagnostic System (GDS). The GDS provides the following information.
Self-Diagnosis: Diagnostic Trouble Code (DTC) check and display
Current Data: Check the system input/output status.
Actuation Test: Check the system operating status
Additional Functions: Other Controls such as System Option and Zero Point
Select "Vehicle Model" and the system to be checked to inspect the vehicle with the tester.
Select "Body Control Module (BCM)" to check the driver seat or the Door Module Assist (DDM/ADM).
Select the "Current Data" menu to check the current input/output status. The input/output data for the sensors related to the driver seat or assist door module (DDM/ADM) can be checked.
If you force-check the power door lock operation, select "Activation Check".
Diagnosis with GDS
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Test yourself
A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.