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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sunroof - With Diagnostics - Lancer >> Diagnostic Trouble Code Procedures >> DTC L0630: S/R Power supply >> Diagnostic Procedure

Diagnostic Procedure

  1. STEP 1. Check sunroof motor assembly connector D-05 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Is sunroof switch connector D-05 in good condition? 

    • YES:  Go to Step 2.
    • NO:  Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Check that the sunroof works normally.
  2. STEP 2. Check the wiring harness between sunroof motor assembly connector D-05 (terminal 6) and fusible link (34). 
    NOTE: Also check ETACS-ECU connectors C-309 and C-316 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If ETACS-ECU connectors C-309 and C-316 is damaged, repair or replace the damaged component(s) as described in HARNESS CONNECTOR INSPECTION .

    Q: Is the wiring harness between sunroof motor assembly connector D-05 (terminal 6) and fusible link (34) 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. Check that the sunroof works normally.
  3. STEP 3. 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 sunroof motor assembly.
    • NO:  The procedure is complete.


  1. STEP 1. Check sunroof switch connector D-04 and sunroof motor assembly D-05 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are sunroof switch connector D-04 and sunroof motor assembly D-05 in good condition? 

    • YES:  Go to Step 2.
    • NO:  Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Check that the sunroof works normally.
  2. STEP 2. Check the wiring harness between sunroof switch connector D-04 (terminals No. 3, 5, 6) and sunroof motor assembly connector D-05 (terminals No. 4, 5, 10). 

    Q: Is the wiring harness between sunroof switch connector D-04 (terminal 3, 5, 6) and sunroof motor assembly connector D-05 (terminal No. 4, 5, 10) 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. Check that the sunroof works normally.
  3. STEP 3. Diagnostic trouble code recheck 

    Replace the sunroof switch. 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 sunroof motor assembly.
    • NO:  The procedure is complete.
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