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

Required Special Tools: 

• MB991223: Harness Set
• MB991958: Scan Tool (MUT-III Sub Assembly)
  • MB991824: Vehicle Communication Interface (V.C.I.)
  • MB991827: MUT-III USB Cable
  • MB991911: MUT-III Main Harness B
• MB991813: SWS Monitor Kit
  • MB991806: SWS Monitor Cartridge
  • MB991812: SWS Monitor Harness (For Column-ECU)
  • MB991822: Probe Harness

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

   Check the ETACS-ECU.

   CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Connect the DLC harness before connecting the column-ECU harness. Be sure to connect SWS monitor kit MB991813 after turning on scan tool MB991958.
   1. Connect scan tool MB991958 to the data link connector.
   2. Connect SWS monitor kit MB991813 to the column switch connector.
   3. Turn the ignition switch to the "LOCK" (OFF) position.
   4. Operate scan tool MB991958 according to the procedure below to display "ECU COMM CHK."
      1. Select "SYSTEM SELECT."
      2. Select "SWS."
      3. Select "SWS MONITOR."
      4. Select "ECU COMM CHK."
   5. Scan tool MB991958 should show "OK" on the "ECU COMM CHK" menu for the "ETACS ECU" menu.

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

   YES  : Go to  Step 2.

   NO  : Refer to INSPECTION PROCEDURE A-3 "COMMUNICATION WITH ETACS-ECU IS NOT POSSIBLE  "

   Fig 1: Connecting Scan Tool To Data Link Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
   Fig 2: Identifying Column Switch 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
   2. Operate scan tool MB991958 according to the procedure below to display "ETACS ECU."
      1. Select "SYSTEM SELECT."
      2. Select "SWS."
      3. Select "SWS MONITOR."
      4. Select "DATA LIST."
      5. Select "ETACS ECU."
   3. Check that normal conditions are displayed on the items described in the table below.
   INPUT SIGNAL CHART
   
   

   ITEM NO.	ITEM NAME	NORMAL CONDITION
   ITEM 30	IGSW(IG1)	OFF
   ITEM 32	FRONT DOOR SW	OFF

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

   Normal conditions are displayed for all the items: 

   Replace the ETACS-ECU. Verify that the power window timer works normally.

   The scan tool does not show the respective normal condition for item "IG SW (IG1)"  : Refer to INSPECTION PROCEDURE M-2 "ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE IGNITION SWITCH (IG1)  ."

   The scan tool does not show the respective normal condition for item "FRONT DOOR SW"  : Refer to INSPECTION PROCEDURE M-4 "ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE DRIVER'S OR THE FRONT PASSENGER'S DOOR SWITCH  ."

   Fig 3: Connecting Scan Tool To Data Link Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
   Fig 4: Identifying Column Switch Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.