Mitsubishi Lancer Evolution IX. Manual — part 252
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INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-267
Step 6. SWS monitor data list.
<Selected item> ETACS ECU
• Driver's door: open
OK: Normal condition is displayed.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Replace the ETACS-ECU.
INSPECTION PROCEDURE L-4: The column switch (lighting, turn-signal lamp and headlamp washer
switch) signal is not received.
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
Input signal from the column switch (lighting,
turn-signal lamp and headlamp washer switch) is
used to operate the functions below. If the signal is
abnormal, these functions will not work normally.
• Lamp reminder function
• Headlamp and tail lamp
• Headlamp automatic shutdown function
• Fog lamp
• Turn signal lamp
• Headlamp washer
POSSIBLE CAUSES
• Malfunction of the column switch
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check the column switch connector.
Check that the wiper and washer switch connector,
the lighting switch connector and the switch body
connector are in good condition.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
Item No.
Item name
Normal condition
Item 32
DR DOOR SW
ON
COLUMN-ECU
DIMMER·
PASSING SWITCH
TURN-SIGNAL
LAMP SWITCH
LIGHTING
SWITCH
COLUMN SWITCH
Lighting Switch Input Circuit
![](/vehicles/winoney/wruvea/ger/gotime.png)
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-268
Step 2. Check the column switch (lighting switch
and switch body).
Refer to GROUP 54A
− Column switch
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the column switch.
Step 3. ECU check by using the SWS monitor.
Check that the power supply and earth lines to the
column switch (column-ECU) and the SWS commu-
nication lines are normal.
• Ignition switch: OFF
ECUS TO BE CHECKED
• COLUMN ECU
OK: "OK" is displayed on the "COLUMN
ECU" menu.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Refer to Inspection Procedure A-2
"Communication with the column switch
(column-ECU) is not possible
."
Step 4. SWS monitor data list.
<Selected item> COLUMN ECU
• Operate each function of the switch.
OK: Normal conditions are displayed for all
the functions of the switch.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Replace the column switch.
INSPECTION PROCEDURE L-5: The column switch (windshield wiper and washer switch) signal is
not received.
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
Item No. Item name
Normal condition
Item 00
HEADLAMP SW ON
Item 01
TAIL LAMP SW
ON
Item 02
DIMMER SW
ON
Item 03
PASSING SW
ON
Item 10
TURN SIG.RH
ON
Item 11
TURN SIG.LH
ON
WINDSHIELD
WASHER
SWITCH
WINDSHIELD
WIPER SWITCH
UPPER
SIDE
UPPER
SIDE
COLUMN SWITCH
COLUMN-ECU
Windshield Wiper and Washer Switch Input Circuit
![](/vehicles/winoney/wruvea/ger/ditreththin.png)
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-269
COMMENTS ON TROUBLE SYMPTOM
Input signal from the column switch (wiper switch) is
used to operate the functions below. If the signal is
abnormal, these functions will not work normally.
• Windshield wiper and washer
• Rear wiper and washer
POSSIBLE CAUSES
• Malfunction of the column switch
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. ECU check by using the SWS monitor.
Check that the power supply and earth lines to the
column switch (column-ECU) and the SWS commu-
nication lines are normal.
• Ignition switch: OFF
ECUS TO BE CHECKED
• COLUMN ECU
OK: "OK" is displayed on the "COLUMN
ECU" menu.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to Inspection Procedure A-2
"Communication with the column switch
(column-ECU) is not possible
."
Step 2. SWS monitor data list.
<Selected item> COLUMN ECU
Operate each function of the switch.
OK: Normal conditions are displayed for all
the functions of the switch.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Replace the column switch.
Item No. Item name
Normal condition
Item 05
INT WIPER SW
ON
Item 06
LO WIPER SW
ON
Item 07
HI WIPER SW
ON
Item 08
MIST WIPER SW ON
Item 09
FRONT
WASH.SW
ON
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INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-270
INSPECTION PROCEDURE L-6: The windshield intermittent wiper volume signal is not received.
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
The intermittent wiper interval is calculated in
accordance with the input signal from the windshield
intermittent wiper volume. If this signal is abnormal,
the wiper interval can not be adjusted.
POSSIBLE CAUSES
• Malfunction of the column switch
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
COLUMN
SWITCH
WINDSHIELD
INTERMITTENT
WIPER INTERVAL
ADJUSTING KNOB
UPPER
SIDE
UPPER
SIDE
ETACS-
ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Windshield Intermittent Wiper Interval Adjusting Knob Input Circuit
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