Mitsubishi Lancer Evolution IX. Manual — part 224
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-155
NOTE:
Prior to the wiring harness inspection, check the
intermediate connector A-13 <LH drive vehicles>,
C-31 <RH drive vehicles> and repair if necessary.
• Check the input signal lines.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
Step 7. Retest the system.
Check that the windshield wipers stop at the speci-
fied park position.
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 front-ECU.
AC303857
Connector: A-13
<LHD>
AB
A-13 (B)
AC310454
Connector: C-31 <RHD>
AY
10
2
9
1
8
3
12
11
4
13
6
15
5
14
7
16
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-156
INSPECTION PROCEDURE F-4: The windshield wipers do not work normally.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
The windshield wiper motor, the column switch or the
front-ECU may be defective.
POSSIBLE CAUSES
• Malfunction of the windshield wiper motor
• Malfunction of the column switch
• Malfunction of the front-ECU
• Damaged harness wires and connectors
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
CIRCUIT
BREAKER
WINDSHIELD
WIPER MOTOR
FRONT-ECU
INPUT SIGNAL
· WINDSHIELD WIPER HI SPEED SWITCH
· WINDSHIELD WIPER INTERMIT SWITCH
· WINDSHIELD WIPER LO SPEED SWITCH
· WINDSHIELD WIPER MIST SWITCH
WIPER SPEED
SWITCHING
RELAY
Windshield Wiper Motor Drive Circuit
![](/vehicles/winoney/wruvea/ger/rrus.png)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-157
DIAGNOSIS PROCEDURE
Step 1. SWS monitor communication data.
Check the SWS communication signal, which are
related to the windshield wipers.
<Selected item> Column switch (column-ECU)
• Ignition switch: ON
• Move the windshield wiper switch to each posi-
tion.
OK: Normal conditions are displayed for all
the functions of the switch.
Q: Is the check result normal?
Normal conditions are displayed for all the items. :
Go to Step 2.
NO :
Replace the column switch
Step 2. Check the operation of the windshield
wipers.
Check that the windshield wipers work at high speed
and the mist mode.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Go to Step 8.
Step 3. Connector check: B-01 windshield wiper
motor connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the defective connector.
Step 4. Check the windshield wiper motor
assembly.
Refer to GROUP 51
− Windshield wiper
.
Q: Is the check result normal?
YES :
Go to Step 5
NO :
Replace the windshield wiper motor
assembly.
Step 5. Connector check: A-11X front-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
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
AC310437
Connector: B-01 <LHD>
AB
Harness side
B-01 (GR)
AC310477
Connector: B-01 <RHD>
AD
Harness side
B-01 (GR)
AC310572AC
Connector: A-11X
Relay box side
Battery
29
31 30
28 27
25
26
24
21
22
23
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-158
Step 6. Check the wiring harness between A-11X
front-ECU connector terminal No.27 and B-01
windshield wiper motor connector terminal No.1.
NOTE:
Prior to the wiring harness inspection, check the
intermediate connector A-13 <LH drive vehicles>,
C-31 <RH drive vehicles>, and repair if necessary.
• Check the power supply line to front-ECU for
open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
Step 7. Retest the system.
Check that the windshield wipers work normally by
moving the switch to each position.
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 front-ECU.
AC310572AC
Connector: A-11X
Relay box side
Battery
29
31 30
28 27
25
26
24
21
22
23
AC310437
Connector: B-01 <LHD>
AB
Harness side
B-01 (GR)
AC310477
Connector: B-01 <RHD>
AD
Harness side
B-01 (GR)
AC310542
Connector: A-13 <LHD>
AC
A-13 (B)
AC310454
Connector: C-31 <RHD>
AY
10
2
9
1
8
3
12
11
4
13
6
15
5
14
7
16
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