Mitsubishi Lancer Evolution IX. Manual — part 201
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-63
COMMENT ON TROUBLE SYMPTOM
If the central door locking system does not work at
all, the front door lock actuator (RH) or the
ETACS-ECU may be defective.
POSSIBLE CAUSES
• Malfunction of the front door lock actuator (RH)
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. ECU check on the SWS monitor
Check that the power supply and earth lines to the
ETACS-ECU and the SWS communication lines are
normal.
• Ignition switch: OFF
ECUS TO BE CHECKED
• ETACS ECU
OK: "OK" is displayed on the "ETACS ECU"
menu.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to Inspection Procedure A-3
"Communication with the ETACS-ECU is
not possible
Step 2. Pulse check
Check the input signal from the driver's door lock
actuator switch.
OK: The M.U.T.-II/III sounds or the voltmeter
needle fluctuates.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Refer to Inspection Procedure L-12 "The
driver's door lock actuator signal is not
received <RH drive vehicles>
Step 3. Connector check: E-15 front door lock
actuator (RH) connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the defective connector.
Step 4. Check the front door lock actuator (RH)
Check that the front door lock actuator (RH) works
normally. Refer to GROUP 42
− Door
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Replace the front door lock actuator (RH).
Step 5. Connector check: C-226 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
System switch
Check condition
Driver's door lock
actuator switch
When the driver's key cylinder
or inside lock knob is unlocked
or locked
AC310493
Harness side
AF
Connector: E-15 <RHD>
E-15 (B)
AC310461
Connector: C-226 <RHD>
AE
Junction block side
Junction block
(rear view)
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-64
Step 6. Check the wiring harness between C-226
ETACS-ECU connector terminal No.2 and fusible
link (1).
NOTE:
Prior to the wiring harness inspection, check interme-
diate connector C-126 and junction block connector
C-212, and repair if necessary.
• Check the power supply line for open or short cir-
cuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
Step 7. Retest the system.
Check that the central door locking system works
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 ETACS-ECU.
AC310461
Connector: C-226 <RHD>
AE
Junction block side
Junction block
(rear view)
AC310523AB
Fusible link: No.1
AC310454
Connector: C-126 <RHD>
AF
AC310458
Junction block (front view)
Connector: C-212 <RHD>
AF
Harness side
C-212 (B)
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-65
INSPECTION PROCEDURE C-2: A Door or a tailgate cannot be locked or unlocked by the central door
locking system. <LH drive vehicles>
DOOR LOCK
ACTUATOR
(
REAR
: RH)
DOOR LOCK
ACTUATOR
(
REAR
: LH)
ETACS-ECU
DOOR
UNLOCK
RELAY
DOOR
LOCK
RELAY
DOOR LOCK
ACTUATOR
(FRONT: LH)
DOOR LOCK
ACTUATOR
(FRONT:RH)
J/B SIDE
Central Door Lock Circuit <LHD>
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-66
COMMENT ON TROUBLE SYMPTOM
If a door or the tailgate cannot be locked or unlocked
by the central door locking system, the door lock
actuator or the tailgate lock actuator may be defec-
tive.
POSSIBLE CAUSES
• Malfunction of the door lock actuator
• Malfunction of the tailgate lock actuator
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Confirm which door lock actuator is
defective.
Q: Which door fails to lock correctly?
Driver's door :
Go to Step 2.
Front passenger's door :
Go to Step 6.
Rear right door :
Go to Step 10.
Rear left door :
Go to Step 14.
Step 2. Connector check: E-04 front door lock
actuator (LH) connector
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
Step 3. Check the front door lock actuator (LH)
Check that the front door lock actuator (LH) works
normally. Refer to GROUP 42
− Door
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Replace the front door lock actuator (LH).
Step 4. Connector check: C-226, C-227
ETACS-ECU connector
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the defective connector.
AC310484
Harness side
AB
Connector: E-04 <LHD>
E-04(B)
Front door (LH)
AC310451
Connectors: C-226, C-227 <LHD>
AB
Junction block (rear view)
Junction block side
C-227
C-226
C-227
Harness side
C-226
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