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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Door & Window - With Diagnostics - Lancer >> Diagnostic Trouble Code Procedures < Power Window > >> DTC L0740: P/W (DR) 3 Times Jam - Protection >> Diagnostic Procedure

Diagnostic Procedure

  1. STEP 1. Check the power window fully closed position 
    1. Carry out the learning procedures of the power window fully closed position. Refer to LEARNING PROCEDURES OF THE POWER WINDOW FULLY CLOSED POSITION < DRIVER'S SIDE ONLY >  .
    2. Recheck if the diagnostic trouble code is set.
      1. Erase the diagnostic trouble code.
      2. Turn the ignition switch from the LOCK (OFF) position to the ON position.
      3. Check if the diagnostic trouble code is set.

    Q: Is the check result normal? 

    1. YES:  The procedure is complete.
    2. NO:  Go to Step 2.
  2. STEP 2. Diagnostic trouble code recheck 

    Replace the front power window motor (LH). Recheck if the diagnostic trouble code is set.

    1. Erase the diagnostic trouble code.
    2. Turn the ignition switch from the LOCK (OFF) position to the ON position.
    3. Check if the diagnostic trouble code is set.

    Q: Is the diagnostic trouble code set? 

    1. YES:  Replace the power window main switch.
    2. NO:  The procedure is complete. Verify that the power window works normally.
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