Lancer Sportback L4-2.4L (4B12) (2010)
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Rear Door Window Motor: Testing and Inspection
DOOR WINDOW REGULATOR CHECK
1. Connect a battery directly to the motor terminals and check that the motor runs smoothly.
2. Check that the motor runs in the opposite direction when the battery is connected with the polarity reversed.
3. If a defect is found, replace the window regulator as an assembly.
