INSPECTION PROCEDURE D-2: Power Windows: The power window timer function does not work normally.: Diagnosis

Required Special Tools: 

• MB991223: Harness Set.
• MB991502: Scan Tool (MUT-II):
  • MB991496: Main unit.
  • MB991497: Test Harness (for communication).
• MB991958: Scan Tool (MUT-III Sub Assembly):
  • MB991824: V.C.I.
  • MB991827: USB Cable.
  • MB991911: Main Harness B.
• MB991813: SWS monitor kit:
  • MB991806: SWS monitor cartridge.
  • MB991812: SWS monitor harness (for column-ECU).
  • MB991922: Probe harness.

1. STEP 1. Use scan tool MB991502 or MB991958 to select "ECU COMM Check" on the SWS monitor display. 

   Check the ETACS-ECU.

   CAUTION: To prevent damage to scan tool MB991502 or MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991502 or MB991958. Connect special tool MB991497 or MB991911 before connecting special tool MB991812. Be sure to connect special tool MB991806 after turning on special tool MB991496 or MB991824. 
   1. Connect the special tool. Refer to "HOW TO CONNECT SWS MONITOR"  .
   2. Turn the ignition switch to the "LOCK" (OFF) position.
   3. Operate scan tool MB991502 or MB991958 according to the procedure below to display "ECU COMM Check."
      Fig 1: Connecting Scan Tool MB991497 To Data Link Connector

      Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      1. Select "Interactive Diagnosis."
      2. Select "System select."
      3. Select "SWS."
      4. Select "SWS MONITOR."
      5. Select "ECU COMM Check."
   4. Scan tool MB991502 or MB991958 should show "OK" on the "ECU COMM Check" menu for the "ETACS ECU" menu.

   Q: Is "OK" displayed on the "ETACS ECU" menu? 

   1. YES :  Go to Step 2.
   2. NO :  Refer to INSPECTION PROCEDURE A-3 "COMMUNICATION WITH ETACS-ECU IS NOT POSSIBLE"  .
   Fig 2: Connecting Scan Tool MB991911 To Data Link Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. STEP 2. Check the input signal by using "Data List" menu of the SWS monitor. 
   1. Check the input signals from the following switches:
      • Ignition switch: ON to OFF.
      • Driver's and front passenger's doors: closed.
      Fig 3: Connecting Scan Tool MB991497 To Data Link Connector

      Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
   2. Operate scan tool MB991502 or MB991958 according to the procedure below to display "ETACS ECU."
      1. Select "Interactive Diagnosis."
      2. Select "System select."
      3. Select "SWS."
      4. Select "SWS MONITOR."
      5. Select "Data List."
      6. Select "ETACS ECU."
   3. Check that normal conditions are displayed on the items described in Fig 4 .
      Fig 4: Identifying Switch Conditions

      Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

   Q: Are normal conditions displayed on the "IG SW (IG1)" and "FRONT DOOR SW"? 

   1. Normal conditions are displayed for all the items:  Replace the ETACS-ECU. Verify that the power window timer works normally.
   2. Normal condition is not displayed on the "IG SW (IG1)":  Refer to INSPECTION PROCEDURE N-2 "ETACS-ECU DOES NOT RECEIVE A SIGNAL FROM THE IGNITION SWITCH (IG1  ."
   3. Normal condition is not displayed on the "FRONT DOOR SW":  Refer to INSPECTION PROCEDURE N-5 "ETACS-ECU DOES NOT RECEIVE A SIGNAL FROM THE DRIVER'S OR THE FRONT PASSENGER'S DOOR SWITCH"  .
   Fig 5: Connecting Scan Tool MB991911 To Data Link Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.