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)
  • MB991922: Probe harness

1. STEP 1. Use scan tool MB991958 to select "ECU COMM Check" 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 special tool MB991911 before connecting special tool MB991812. Be sure to connect special tool MB991806 after turning on special tool 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 MB991958 according to the procedure below to display "ECU COMM Check."
      1. Select "Interactive Diagnosis."
      2. Select "System select."
      3. Select "SWS."
      4. Select "SWS MONITOR."
      5. Select "ECU COMM Check."
   4. Scan tool MB991958 should show "OK" on the "ECU COMM Check" 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 THE ETACS-ECU IS NOT POSSIBLE ".
   Fig 1: Connecting Special Tool 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
   2. Operate scan tool 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 for the items described in the following table.
      ITEM NO., NAME & NORMAL CONDITION CHART
      
      

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

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

   • YES < Normal conditions are displayed for all the items >  : Replace the ETACS-ECU. Verify that the power window timer works normally.
   • NO < Normal condition is not displayed for the "IG SW (IG1)" >  : Refer to "INSPECTION PROCEDURE N-2: THE ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE IGNITION SWITCH (IG1) ."
   • NO < Normal condition is not displayed for the "FRONT DOOR SW" >  : Refer to "INSPECTION PROCEDURE N-5: THE ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE FRONT DOOR SWITCHES ."
   Fig 2: Connecting Special Tool To Data Link Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.