Eclipse L4-2.4L SOHC (2004)
1. Connect the special tool. Refer to "How to connect SWS monitor." See: Reading and Clearing Diagnostic Trouble Codes/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."
a. Select "Interactive Diagnosis."
b. Select "System Select."
c. Select "SWS."
d. Select "SWS MONITOR."
e. Select "ECU COMM Check."
4. Scan tool MB991958 should show "OK" on the "ECU COMM Check" menus for both the "COLUMN ECU" and "FRONT ECU" menus.
Q: Are "OK" displayed on the "COLUMN ECU" and "FRONT ECU" menu?
"OK" are displayed for all the items: Replace the front-ECU. Check that the windshield wiper works normally.
"NG" is displayed on the "COLUMN ECU" menu: Refer to Inspection Procedure A-2 "Communication with column switch (column-ECU) is
impossible."
"NG" is displayed on the "FRONT ECU" menu: Refer to Inspection procedure A-4 "Communication with front-ECU is impossible."
Inspection Procedure G-3
Windshield Wiper and Washer: Any of the Windshield Wiper Switch Positions is Defective.
NOTE: This troubleshooting requires use of scan tool MB991958 and SWS monitor kit MB991862. For details of how to use the SWS monitor, refer
to "How to use SWS monitor." See: Reading and Clearing Diagnostic Trouble Codes/How To Use SWS Monitor