Mitsubishi Galant (2004+). Manual — part 240
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-151
INSPECTION PROCEDURE C-2: Central Door Locking System: Some Doors do not Lock or Unlock.
JUNCTION BLOCK
FRONT DOOR
LOCK
ACTUATOR (LH)
FRONT DOOR
LOCK
ACTUATOR (RH)
REAR DOOR
LOCK
ACTUATOR (LH)
REAR DOOR
LOCK
ACTUATOR (RH)
ETACS-ECU
JUNCTION BLOCK SIDE
Central Door Lock Circuit
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-152
.
CIRCUIT OPERATION
• The ETACS-ECU operates the central door lock
system according to the following signals:
• Front door lock actuator switch
• Door lock key cylinder switch
• Door lock switch, which is incorporated in the
power window main switch or front power win-
dow sub switch
• The ETACS-ECU locks or unlocks all the doors
(except liftgate and glass hatch lock) by operating
the central door lock relay (incorporated in the
ECU) in response to input signals.
.
AC305233
CONNECTOR: C-12
AE
AC305231
CONNECTOR: C-26
AL
AC305415
C-211
CONNECTORS: C-204, C-211
AI
JUNCTION BLOCK
(FRONT VIEW)
C-204
AC305413
C-219
C-217
CONNECTORS: C-217, C-219
AF
JUNCTION BLOCK
(REAR VIEW)
AC305268
AB
CONNECTOR: D-19
AC305264
CONNECTOR: D-36
AD
AC305333
AF
CONNECTORS: E-05, E-08
E-05 (B)
E-08 (B)
AC305262
AK
CONNECOTRS: E-15, E-18
E-15 (B)
E-18 (B)
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-153
TECHNICAL DESCRIPTION (COMMENT)
The wiring harness between the door lock actuator or
the ETACS-ECU and the door lock actuator may be
defective.
.
TROUBLESHOOTING HINTS
• The front door lock actuator or rear door lock
actuator may be defective
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
• The ETACS-ECU may be defective
DIAGNOSIS
Required Special Tool:
• MB991223: Harness Set
STEP 1. Check which door lock is defective.
Q: Which of the door locks is defective?
Driver's door : Go to Step 2.
Front passenger's door : Go to Step 7.
Rear door (LH) : Go to Step 11.
Rear door (RH) : Go to Step 15.
STEP 2. Check front door lock actuator (LH) connector
E-15 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Is front door lock actuator (LH) connector E-15 in good
condition?
YES : Go to Step 3.
NO : Repair or check the connector. Refer to GROUP 00E,
Harness Connector Inspection
. Verify that all
the doors can be locked and unlocked normally.
AC305262
E-15 (B)
HARNESS SIDE
CONNECTOR: E-15
AH
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-154
STEP 3. Check the front door lock actuator (LH).
Remove the front door lock actuator (LH). The illustration
shows when the door lock actuator is viewed from inside the
door. Refer to GROUP 42
− Door Handle and Latch
.
Q: Does the front door lock actuator (LH) work normally?
YES : Go to Step 4.
NO : Replace the front door lock actuator (LH). Verify that
all the doors can be locked and unlocked normally.
STEP 4. Check ETACS-ECU connectors C-217 and C-219
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are ETACS-ECU connectors C-217 and C-219 in good
condition?
YES : Go to Step 5.
NO : Repair or check the connector. Refer to GROUP 00E,
Harness Connector Inspection
. Verify that all
the doors can be locked and unlocked normally.
LEVER
POSITION
BATTERY
CONNECTION
LEVER
OPERATION
At the "LOCK"
position
• Connect terminal 6
to the negative
battery terminal
• Connect terminal 4
to the positive
battery terminal
The lever moves
from the "LOCK"
position to the
"UNLOCK"
position.
At the
"UNLOCK"
position
• Connect terminal 4
to the negative
battery terminal
• Connect terminal 6
to the positive
battery terminal
The lever moves
from the "UNLOCK"
position to the
"LOCK" position.
1 2 3
4 5 6
AC210903 AB
VIEW A
A
LOCK
UNLOCK
LEVER
AC305414
CONNECTORS: C-217, C-219
JUNCTION BLOCK
(REAR VIEW)
C-217
C-219
HARNESS SIDE
C-217
C-219
JUNCTION BLOCK SIDE
21
22
23
24
25
26
27
28
29
38 37 36 3534 33 32 31 30
39
40
41
42
43
44
AB
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