Mitsubishi Outlander XL. Manual — part 723
CENTRAL DOOR LOCKING SYSTEM DIAGNOSIS
TROUBLESHOOTING STRATEGY
M14203000067USA0000010001
Refer to GROUP 00, How to Use Troubleshooting/Inspection
Service Points, Troubleshooting Contents P.00-6.
TROUBLE SYMPTOM CHART <CENTRAL DOOR LOCKING SYSTEM>
M14203000070USA0000010001
During diagnosis, a diagnostic trouble code
associated with other system may be set when the
ignition switch is turned on with connector(s)
disconnected. On completion, check all systems
for diagnostic trouble code(s). If diagnostic
trouble code(s) are set, erase them all.
Trouble symptom
Inspection
procedure
number
Reference
page
Central door locking system does not work at all.
A-1
A door or a liftgate cannot be locked or unlocked by the central door locking
system.
A-2
The liftgate does not open.
A-3
Selector "P" position-linked door unlock function does not operate.
A-4
INPUT SIGNAL CHART <CENTRAL DOOR LOCKING SYSTEM>
M14203000920USA0000010000
Trouble symptom
Inspection
procedure
number
Reference
page
The liftgate lock release handle signal is not received.
B-1
SYMPTOM PROCEDURES
INSPECTION PROCEDURE A-1: Central Door Locking System does not Work at All.
M14203000916USA0000010000
Before replacing the ECU, ensure that the power
supply circuit, the ground circuit and the
communication circuit are normal.
DOOR
42Ab-11
CENTRAL DOOR LOCKING SYSTEM DIAGNOSIS
ZC600616
ETACS
-ECU
FUSIBLE
LINK
37
DOOR
LOCK
RELAY
DRIVER'S
DOOR
UNLOCK
RELAY
PASSENGER'S
DOOR
UNLOCK
RELAY
LIFTGATE
LOCK
RELAY
RED
RED
FRONT DOOR LOCK ACTUATOR, REAR DOOR
LOCK ACTUATOR AND LIFTGATE LOCK ACTUATOR
0000
Central Door Lock Power Supply Circuit
ZC600878
Connector: C-309
C-309 (B)
0009
CIRCUIT OPERATION
⦆
The ETACS-ECU controls the central door lock
system, locking or unlocking all the doors by
activating the central door lock relay (built into the
ETACS-ECU). The ETACS-ECU uses inputs from
the following components:
⦆
Door lock actuator
⦆
Door lock key cylinder switch
⦆
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 terminals
pushed back in the connector
⦆
The ETACS-ECU may be defective
DIAGNOSTIC PROCEDURE
Required Special Tools:
⦆
MB991223: Harness Set
⦆
MB992006: Extra Fine Probe
⦆
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
⦆
MB991824: Vehicles Communication Interface (V.C.I.)
⦆
MB991827: M.U.T.-III USB Cable
42Ab-12
DOOR
CENTRAL DOOR LOCKING SYSTEM DIAGNOSIS
⦆
MB991910: M.U.T.-III Main Harness A
STEP 1. Using scan tool MB991958, check data list.
Check the input signals from the front door lock actuators.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.
(1)
Connect scan tool MB991958. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.54Ad-5."
(2)
Turn the ignition switch to the "ON" position.
(3)
Check the ETACS data list.
⦆
Set the driver's door to "UNLOCK."
Item No.
Item name
Normal
condition
Item 271
Dr door unlock
switch
Unlock
⦆
Set the front passenger's door to "UNLOCK." <vehicles
with KOS>
Item No.
Item name
Normal
condition
Item 272
As door unlock
switch
Unlock
(4)
Turn the ignition switch to the "LOCK" (OFF) position.
Q:Are normal conditions displayed on the "Dr door unlock
switch" and "As door unlock switch"?
YES:
Go to Step 2.
NO:
Refer to GROUP 54Ad, Inspection Procedure 4: ETACS-
ECU does not receive any signal from the front door lock
actuator P.54Ad-67.
STEP 2. Check ETACS-ECU connector C-309 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q:Is ETACS-ECU connector C-309 in good condition?
YES:
Go to Step 3.
NO:
Repair or replace the damaged component(s). Refer to
GROUP 00E, Harness Connector Inspection P.00E-2. Verify
that the central door locking system works normally.
STEP 3. Check the wiring harness between ETACS-ECU
connector C-309 (terminal 2) and fusible link (37).
Q:Is the wiring harness between ETACS-ECU connector
C-309 (terminal 2) and fusible link (37) in good condition?
YES:
Go to Step 4.
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.
DOOR
42Ab-13
CENTRAL DOOR LOCKING SYSTEM DIAGNOSIS
STEP 4. 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.
INSPECTION PROCEDURE A-2: A Door or A Liftgate cannot be Locked or Unlocked by
The Central Door Locking System.
M14203000917USA0000010000
Before replacing the ECU, ensure that the power
supply circuit, the ground circuit and the
communication circuit are normal.
42Ab-14
DOOR
CENTRAL DOOR LOCKING SYSTEM DIAGNOSIS
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