Mitsubishi Lancer Evolution IX. Manual — part 122
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-51
INSPECTION PROCEDURE C-1: Central door locking system does not work. <RH drive vehicles>
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
DOOR
UNLOCK
RELAY
DOOR
LOCK
RELAY
DOOR LOCK
ACTUATOR
(FRONT: RH)
1
FUSIBLE
LINK
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
ETACS-ECU
J/B SIDE
Central Door Lock Power Supply Circuit <RHD>
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-52
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. Check the power supply circuit.
When the ignition switch is turned to the LOCK
(OFF) position, check if the hazard warning lamps
illuminate.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to inspection procedure A-2 "Check
the ETACS-ECU battery power supply
circuit"
Step 2. Pulse check
Check the input signal from the driver's door lock
actuator switch.
OK: The M.U.T.-II/III sound or the voltmeter
needle fluctuate.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Refer to inspection procedure L-11 "The
front door lock actuator (RH) switch 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) NOT USING SWS MONITOR
54B-53
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) NOT USING SWS MONITOR
54B-54
INSPECTION PROCEDURE C-2: A Door or a tailgate can not 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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