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Diagnostic Procedure

WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
  1. STEP 1. Check power window main switch connector E-15, front power window motor (LH) connector E-14 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are power window main switch connector E-15, front power window motor (LH) connector E-14 in good condition? 

    YES  : Go to Step 2.

    NO  : Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Verify that the power window works normally.

  2. STEP 2. Check the wiring harness between power window main switch connector E-15 (terminals Nos. 8, 9 and 12) and front power window motor (LH) connector E-14 (terminals Nos. 3, 5 and 6). 

    Q: Is the wiring harness between power window main switch connector E-15 (terminals Nos. 8, 9 and 12) and front power window motor (LH) connector E-14 (terminals Nos. 3, 5 and 6) in good condition? 

    YES  : Go to Step 3.

    NO  : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Verify that the power window works normally.

  3. STEP 3. 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. Operate the driver's door window switch on the power window main switch.
    3. Check if the diagnostic trouble code is set.

    Q: Is the diagnostic trouble code set? 

    YES  : Replace the power window main switch.

    NO  : The procedure is complete. Verify that the power window works normally.



  1. STEP 1. Check power window main switch connector E-15, front power window motor (LH) connector E-14 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are power window main switch connector E-15, front power window motor (LH) connector E-14 in good condition? 

    YES  : Go to Step 2.

    NO  : Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Verify that the power window works normally.

  2. STEP 2. Check the wiring harness between power window main switch connector E-15 (terminals Nos. 9, 11 and 12) and front power window motor (LH) connector E-14 (terminals Nos. 5, 2 and 6). 

    Q: Is the wiring harness between power window main switch connector E-15 (terminals Nos. 9, 11 and 12) and front power window motor (LH) connector E-14 (terminals Nos. 5, 2 and 6) in good condition? 

    YES  : Go to Step 3.

    NO  : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Verify that the power window works normally.

  3. STEP 3. 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. Operate the driver's door window switch on the power window main switch.
    3. Check if the diagnostic trouble code is set.

    Q: Is the diagnostic trouble code set? 

    YES  : Replace the power window main switch.

    NO  : The procedure is complete. Verify that the power window works normally.



  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 >  .
    2. Recheck if the diagnostic trouble code is set.
      1. Erase the diagnostic trouble code.
      2. Press the driver's door window switch (on the power window main switch) down to open the window, and pull up the driver's door window switch to fully close the window.
      3. Check if the diagnostic trouble code is set.

    Q: Is the check result normal? 

    YES  : The procedure is complete.

    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. Press the driver's door window switch (on the power window main switch) down to open the window, and pull up the driver's door window switch to fully close the window.
    3. Check if the diagnostic trouble code is set.

    Q: Is the diagnostic trouble code set? 

    YES  : Replace the power window main switch.

    NO  : The procedure is complete. Verify that the power window works normally.



  1. STEP 1. Check power window main switch connector E-15, front power window motor (LH) connector E-14 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are power window main switch connector E-15, front power window motor (LH) connector E-14 in good condition? 

    YES  : Go to Step 2.

    NO  : Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Verify that the power window works normally.

  2. STEP 2. Check the wiring harness between power window main switch connector E-15 (terminal No. 12) and front power window motor (LH) connector E-14 (terminal No. 6). 

    Q: Is the wiring harness between power window main switch connector E-15 (terminal No. 12) and front power window motor (LH) connector E-14 (terminal No. 6) in good condition? 

    YES  : Go to Step 3.

    NO  : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Verify that the power window works normally.

  3. STEP 3. 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? 

    YES  : Replace the power window main switch.

    NO  : The procedure is complete. Verify that the power window works normally.



  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 >  .
    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? 

    YES  : The procedure is complete.

    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? 

    YES  : Replace the power window main switch.

    NO  : The procedure is complete. Verify that the power window works normally.



Diagnostic trouble code recheck 

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? 

YES  : Replace the power window main switch.

NO  : The procedure is complete. Verify that the power window works normally.

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