Mitsubishi Lancer Evolution IX. Manual — part 143
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-135
Step 10. Connector check: C-206 column switch
connector
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Repair the connector.
Step 11. Check the wiring harness between C-206
column switch connector terminal No.8 and
A-11X front-ECU connector terminal No.26.
AC310479
AD
Connector: C-206 <LHD>
Harness side
AC310481AD
Connector: C-206 <RHD>
Harness side
AC310572AC
Connector: A-11X
Relay box side
Battery
29
31 30
28 27
25
26
24
21
22
23
AC310479
AD
Connector: C-206 <LHD>
Harness side
AC310481AD
Connector: C-206 <RHD>
Harness side
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-136
NOTE:
Prior to the wiring harness inspection, check the
intermediate connector C-129 and repair if neces-
sary.
• Check the wiper backup circuit.
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Repair the wiring harness.
Step 12. Retest the system.
The windshield wiper should now work normally at
all.
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.
AC310446
Connector: C-129 <LHD>
AS
AC310454
Connector: C-129 <RHD>
AV
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-137
INSPECTION PROCEDURE F-2: The windshield wipers do not work when the wiper switch is at "INT",
"Washer" or "Mist" position. However, the wipers work at low speed when the switch is at "Lo" and
"Hi" position.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
The system may be at fail-safe mode as the SWS
communication line is defective. If the front-ECU
does not receive the ignition switch (ACC) signal due
to an open circuit in the SWS communication lines or
other reasons when the ignition switch is at the ACC
position, the system will enter the fail-safe mode.
POSSIBLE CAUSES
• 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
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-138
DIAGNOSTIC PROCEDURE
Step 1. M.U.T.-II/III diagnosis code.
When the ignition switch is turned to the LOCK
(OFF) position, check that the ETACS-ECU does not
set the diagnosis code.
Q: Is the diagnosis code set?
YES :
Refer to diagnosis code chart
NO :
Go to Step 2.
Step 2. Pulse check
Check the input signals below which are related to
the windshield wiper.
OK: The M.U.T.-II/III sounds or the voltmeter
needle fluctuates.
Q: Is the check result normal?
All the signals are received normally :
Go to Step
3.
The ignition switch (ACC) signal is not received. :
Refer to inspection procedure L-1 "The
ignition switch (ACC) signal is not received
."
Windshield mist wiper switch signal is not
received. :
Refer to inspection procedure L-5 "The
column switch (windshield wiper washer
and rear wiper washer switch) signal is not
received
."
Step 3. Retest the system.
The windshield wiper should now work normally.
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.
System switch
Check condition
Ignition switch (ACC)
When turned from the
LOCK (OFF) position to
the ACC position.
Windshield mist wiper
switch
When the switch is
turned from off to on.
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