Mitsubishi Evolution X. Manual - part 483

 

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Mitsubishi Evolution X. Manual - part 483

 

 

DOOR

TSB Revision

BODY

42A-35

STEP 5. Check the wiring harness between joint connector 
(1) connector C-101 (terminal No. 5) and ETACS-ECU 
connector C-301 (terminal No. 2), joint connector (3) 
connector C-103 (terminal No. 21) and ETACS-ECU 
connector C-315 (terminal No. 15).
Q: Are the wiring harness between joint connector (1) 

connector C-101 (terminal No. 5) and ETACS-ECU 
connector C-301 (terminal No. 2), joint connector (3) 
connector C-103 (terminal No. 21) and ETACS-ECU 
connector C-315 (terminal No. 15) in good condition?
YES : 
Go to Step 6.
NO :  The wiring harness may be damaged or the connector 

may have loose, corroded or damaged terminals, or 
terminals pushed back in the connector. Repair the 
wiring harness as necessary. Verify that the central 
door locking system works normally.

STEP 6. Retest the system.
Check that the central door locking system works normally.
Q: Is the check result normal?

YES : No action is necessary and testing is complete.
NO :  Replace the ETACS-ECU. Check that the central door 

locking system normally.

DOOR

TSB Revision

BODY

42A-36

INSPECTION PROCEDURE 2: Central Door Locking System does not Operate even when Door Lock 
Switch of Power Window Main Switch Operated (Door Lock Switch of Front Power Window Sub 
Switch Operate Normally).

CAUTION

Before replacing the ECU, ensure that the power 
supply circuit, the ground circuit and the com-
munication circuit are normal.

AC709019

ETACS-ECU

FUSIBLE
LINK

37

DOOR

LOCK

RELAY

DRIVER'S

DOOR

UNLOCK

RELAY

PASSENGER'S

DOOR

UNLOCK

RELAY

RED

RED

FRONT DOOR LOCK ACTUATOR OR

REAR DOOR LOCK ACTUATOR

AB

Central Door Locking System Power Supply Circuit

POWER 
WINDOW 
MAIN 
SWITCH

JOINT
CONNECTOR 
(3)

JOINT
CONNECTOR 
(1)

DOOR 
LOCK 
SWITCH

DOOR 
LOCK 
SWITCH

BLACK

BLACK

BLACK

BLACK

YELLOW

YELLOW -RED

GRAY

GRAY

YELLOW -RED

YELLOW -RED

YELLOW -RED

GRAY

GRAY

GRAY

FRONT 
POWER 
WINDOW 
SUB SWITCH

DOOR

TSB Revision

BODY

42A-37

.

CIRCUIT OPERATION

• The ETACS-ECU controls the central door lock 

system, locking or unlocking all the doors by acti-
vating the central door lock relay (built into the 
ETACS-ECU). The ETACS-ECU uses inputs from 
the following components:

• Door lock actuator

• Door lock switch, which is incorporated in the 

power window main switch or power window 
sub switch

.

TROUBLESHOOTING HINTS

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

• The power window main switch may be defective

DIAGNOSTIC PROCEDURE

STEP 1. Checking central door locking system operation
Check that the central door locking system works normally.
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Refer to Inspection procedure 1 "Central door locking 

system does not work at all 

P.42A-31

."

STEP 2. Check power window main switch connector E-15 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is power window main switch connector E-15 in good 

condition?
YES : 
Go to Step 3.
NO :  Repair or check the connector. Refer to GROUP 00E, 

Harness Connector Inspection 

P.00E-2

. Verify that all 

the doors can be locked and unlocked normally.

AC708950AK

C-129 (BR)

C-103 (B)

C-101 (B)

Connectors: C-101, C-103, C-129

AC608167AM

Connector: E-15

DOOR

TSB Revision

BODY

42A-38

STEP 3. Check the power window main switch (door lock 
switch).
Remove the power window main switch. Refer to 

P.42A-124

.

Q: Does the power window main switch work normally?

YES : Go to Step 4.
NO :  Replace the power window main switch. Verify that all 

the doors can be locked and unlocked normally.

STEP 4. Check joint connector (1) connector C-101, joint 
connector (3) connector C-103 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q: Are joint connector (1) connector C-101, joint connector 

(3) connector C-103 in good condition?
YES : 
Go to Step 5.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Check that the sunroof works normally.

STEP 5. Check the wiring harness between power window 
main switch connector E-15 (terminals Nos. 13 and 14), 
joint connector (3) connector C-103 (terminal No. 20) and 
joint connector (1) connector C-101 (terminal No. 4).
NOTE: Also check intermediate connector C-129 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector C-129 is damaged, repair 
or replace the damaged component(s) as described in GROUP 
00E, Harness Connector Inspection 

P.00E-2

.

Q: Are the wiring harness between power window main 

switch connector E-15 (terminals Nos. 13 and 14), joint 
connector (3) connector C-103 (terminal No. 20) and 
joint connector (1) connector C-101 (terminal No. 4) in 
good condition?
YES : 
Go to Step 6.
NO :  The wiring harness may be damaged or the connector 

may have loose, corroded or damaged terminals, or 
terminals pushed back in the connector. Repair the 
wiring harness as necessary. Verify that the central 
door locking system works normally.

Switch 
position

Tester 
connection

Specified 
condition

LOCK

14 

− Ground

Continuity exists 
(2 

Ω or less)

UNLOCK

13 

− Ground

Continuity exists 
(2 

Ω or less)

AC609544

ZC600611

Door lock switch

AB

 

 

 

 

 

 

 

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