Mitsubishi Lancer Evolution IX. Manual — part 226
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-163
Step 3. SWS monitor data list
• Enter a simulated vehicle speed when the wind-
shield intermittent wiper interval adjusting knob
position is slow side.
NOTE: Also check that the wiper interval changes
smoothly when the vehicle is accelerated from 0
km/h to 25 km/h.
OK: Normal condition is displayed.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Refer to Inspection Procedure L-13 "The
vehicle speed sensor signal is not received
."
Step 4. Retest the system.
Check that the intermittent wiper interval depends on
the vehicle speed.
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.
Item No. Item name
Normal condition
ITEM 37
INT WIPER TIME
18.0
− 12.0 s
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-164
INSPECTION PROCEDURE F-7: The windshield washer does not work.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
FRONT-ECU
WINDSHIELD
WASHER MOTOR
WINDSHIELD
WASHER
RELAY
INPUT SIGNAL
WINDSHIELD WASHER
IGNITION
SWITCH (ACC)
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 Washer Motor Circuit
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-165
COMMENTS ON TROUBLE SYMPTOM
The windshield washer motor, the column switch or
the front-ECU may be defective.
POSSIBLE CAUSES
• Malfunction of the windshield washer motor
• Malfunction of the column switch
• Malfunction of the front-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check the operation of the windshield
wipers.
Check that the windshield wipers work normally.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to Inspection Procedure F-1 "The
windshield wipers do not work at all
."
Step 2. ECU check on the SWS monitor
Check that the power supply and earth lines to the
column switch (column-ECU) and the front-ECU and
the SWS communication lines are normal.
• Turn the ignition switch to the ACC position.
ECUS TO BE CHECKED
• COLUMN ECU
• FRONT ECU
OK: "OK" is displayed for all the items
Q: Is the check result normal?
"OK" is displayed for all the items :
Go to Step 3.
"NG" is displayed on the "COLUMN ECU" menu. :
Refer to Inspection Procedure A-2
"Communication with the column switch
(column-ECU) is not possible
."
"NG" is displayed on the "FRONT ECU" menu. :
Refer to Inspection Procedure A-4
"Communication with the front-ECU is not
possible
."
Step 3. Function diagnosis by using the SWS
monitor
Check the SWS communication signal, which are
related to the windshield washer function.
<Selected item> F.WIPER WASH
• Turn the ignition switch to the ACC position.
• Windshield washer switch: ON
OK: Normal conditions are displayed for all
the items.
Q: Is the check result normal?
Normal conditions are displayed for all the items :
Go to Step 4.
Normal condition is not displayed for item No.09 :
Replace the column switch.
Normal condition is not displayed for item No.31 :
Refer to Inspection Procedure L-1 "The
ignition switch (ACC) signal is not received
."
Normal condition is not displayed for item No.70 :
Replace the front-ECU.
Item No. Item name
Normal condition
Item 09
FRONT WASH. SW ON
Item 31
IG SW (ACC)
ON
Item 70
FRONT ECU ACK
NORMAL ACK or
HI-BEAM ACK
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-166
Step 4. Connector check: F-18 windshield washer
motor connector
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the connector.
Step 5. Check the windshield washer motor
assembly.
Refer to GROUP 51
− Windshield washer
.
Q: Is the check result normal?
YES :
Go to Step 6
NO :
Replace the windshield washer motor.
Step 6. Resistance measurement at the F-18
windshield washer motor connector
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Continuity between F-18 windshield washer
motor connector terminal No.1 and body earth
OK: 2
Ω or less
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Go to Step 7.
AC310467AF
Harness side
Connector: F-18 <LHD>
AC310469
AF
Harness side
Connector: F-18 <RHD>
AC310467AF
Harness side
Connector: F-18 <LHD>
AC310469
AF
Harness side
Connector: F-18 <RHD>
AC310506
2
1
Connector F-18
(Harness side)
AJ
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