MITSUBISHI 380 2005 Workshop Manual

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-181
STEP 23. Check rear power window sub switch (RH)
connector E-06 and rear power window regulator motor
(RH) connector E-07 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are rear power window sub switch (RH) connector E-06
and rear power window regulator motor (RH) connector
E-07 in good condition?
YES : Go to Step 24.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. When the rear power window sub switch
(RH) is operated, the rear power window (RH) should
raise and lower normally.
STEP 24. Check the rear power window sub switch (RH) for
continuity.
(1) Remove the rear power window sub switch (RH). Refer to
GROUP 42, Door, Door Glass and Regulator P.42-39.
(2) Check continuity when the rear power window sub switch
(RH) is operated to "UP" or "DOWN" position.
Q: Is the rear power window sub switch (RH) normal?
YES : Go to Step 25.
NO : Replace the rear power window sub switch (RH).
When the rear power window sub switch (RH) is
operated, the rear power window (RH) should raise
and lower normally.
SWITCH
POSITIONTESTER
CONNECTIONSPECIFIED
CONDITION
UP 4
5, 6 7 Less than 2 ohms
OFF 4
5, 7 8
DOWN 4
6, 7 8

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-182
STEP 25. Check the rear power window regulator motor
(RH).
(1) Remove the rear power window regulator assembly (RH).
Refer to GROUP 42, Door, Door Glass and Regulator
P.42-39.
(2) Connect a battery to the motor terminal, and check that the
motor runs freely.
Q: Is the rear power window regulator motor (RH) normal?
YES : Go to Step 26.
NO : Replace the rear power regulator assembly (RH).
When the rear power window sub switch (RH) is
operated, the rear power window (RH) should raise
and lower normally.
STEP 26. Check the battery power supply circuit to the rear
power window sub switch (RH). Measure the voltage at
rear power window sub switch (RH) connector E-06.
(1) Disconnect rear power window sub switch (RH) connector
E-06 and measure the voltage available at the wiring
harness side of the connector.
(2) Measure the voltage between terminal 6 and ground.
The voltage should measure approximately 12 volts
(battery positive voltage).
Q: Is the measured voltage approximately 12 volts (battery
positive voltage)?
YES : Go to Step 29.
NO : Go to Step 27. BATTERY CONNECTION SLIDER POSITION
Connect terminal 1 to the
negative battery terminal
Connect terminal 2 to the
positive battery terminalUP
Connect terminal 2 to the
negative battery terminal
Connect terminal 1 to the
positive battery terminalDOWN

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-183
STEP 27. Check power window relay connector C-203 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is power window relay connector C-203 in good
condition?
YES : Go to Step 28.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. When the rear power window sub switch
(RH) is operated, the rear power window (RH) should
raise and lower normally.
STEP 28. Check the wiring harness between power
window relay connector C-203 (terminal 4) and rear power
window sub switch (RH) connector E-06 (terminal 6).

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-184
NOTE: Also check junction block connector C-215, intermedi-
ate connectors C-28 and D-36. If junction block connector
C-215, intermediate connector C-28 or D-36 is damaged, repair
or replace the connector as described in GROUP 00E, Harness
Connector Inspection P.00E-2.
Q: Is the wiring harness between power window relay
connector C-203 (terminal 4) and rear power window
sub switch (RH) connector E-06 (terminal 6) in good
condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. When the
rear power window sub switch (RH) is operated, the
rear power window (RH) should raise and lower
normally.
STEP 29. Check the ground circuit to the rear power
window sub switch (RH). Measure the resistance at rear
power window sub switch (RH) connector E-06.
(1) Disconnect rear power window sub switch (RH) connector
E-06 and measure the resistance available at the wiring
harness side of the connector.
(2) Measure the resistance value between terminal 5 and
ground, and also between terminal 8 and ground.
The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 31.
NO : Go to Step 30.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-185
STEP 30. Check the wiring harness between power
window main switch connector E-04 (terminals 6 and 4)
and rear power window sub switch (RH) connector E-06
(terminals 5 and 8).

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-186
NOTE: Also check intermediate connectors C-12, C-28 and
D-36. If intermediate connector C-12, C-28 or D-36 is dam-
aged, repair or replace the damaged component(s) as
described in GROUP 00E, Harness Connector Inspection
P.00E-2.
Q: Is the wiring harness between power window main
switch connector E-04 (terminals 6 and 4) and rear
power window sub switch (RH) connector E-06
(terminals 5 and 8) in good condition?
YES : Replace the power window main switch. When the
rear power window sub switch (RH) is operated, the
rear power window (RH) should raise and lower
normally.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. When the
rear power window sub switch (RH) is operated, the
rear power window (RH) should raise and lower
normally.
STEP 31. Check the wiring harness between rear power
window sub switch (RH) connector E-06 (terminals 4 and
7) and rear power window regulator motor (RH) connector
E-07 (terminals 1 and 2).
Q: Is the wiring harness between rear power window sub
switch (RH) connector E-06 (terminals 4 and 7) and rear
power window regulator motor (RH) connector E-07
(terminals 1 and 2) in good condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. When the
rear power window sub switch (RH) is operated, the
rear power window (RH) should raise and lower
normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-187
INSPECTION PROCEDURE D-5: Power Window: Front or rear passenger's power windows do not
work at all by operating the power window main switch.
.
CIRCUIT OPERATION
When you operate each power window switch for
front or rear passengers (incorporated in the power
window main switch), the corresponding power win-
dow motor operates, opening or closing each power
window.
.
TECHNICAL DESCRIPTION (COMMENT)
If the corresponding power window opens and closes
normally when each power window sub-switch is
operated, the power window main switch may be
defective.
.
TROUBLESHOOTING HINT
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
The power window main switch may be defective
DIAGNOSIS
Check that power window sub switches operate normally.
Q: A power window cannot work by using the power
window main switch. Can you operate the power
window by using the corresponding power window sub
switch?
YES : Replace the power window main switch. Check that
the front or rear passenger's power window can work
normally by means of power window main switch.
NO : Refer to Symptom Chart P.54B-57 before resolving
this trouble.
KEYLESS ENTRY SYSTEM
GENERAL DESCRIPTION CONCERNING THE KEYLESS ENTRY SYSTEMM1549022000255
The following ECUs affect the functions and control
of the keyless entry system.
FUNCTIONCONTROL
ECU
All door lock function Pressing the transmitter lock button ETACS-ECU
Driver’s door unlock function Pressing the transmitter unlock button once ETACS-ECU
All door unlock function Pressing the transmitter unlock button twice ETACS-ECU
Trunk unlock function Pressing the transmitter trunk button twice ETACS-ECU
Keyless entry hazard answerback and horn answerback function ETACS-ECU
Timed locking mechanism ETACS-ECU

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-188
ALL DOOR LOCK FUNCTION
.
PRESSING THE TRANSMITTER LOCK BUTTON
When the transmitter lock button is pressed, the ETACS-ECU
energizes its door lock relay to operate all the door lock actua-
tors for 0.25 second, locking all doors.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-189
DRIVER’S DOOR UNLOCK FUNCTION
.
PRESSING THE TRANSMITTER UNLOCK
BUTTON ONCE
When the transmitter unlock button is pressed once, the
ETACS-ECU energizes its door unlock relay to operate the
door lock actuator of the driver’s door for 0.25 seconds, thus
unlocking only the driver’s door.
ALL DOOR UNLOCK FUNCTION
.
PRESSING THE TRANSMITTER UNLOCK
BUTTON TWICE
When the transmitter unlock button is pressed twice, the
ETACS-ECU energizes its door unlock relay to operate the
driver’s door lock actuator and the other door lock actuators for
0.25 seconds each in succession. All the doors will be
unlocked.
NOTE: If the timed locking function is available, the doors will
be locked in 30 seconds after the initial unlocking. Therefore,
the second door unlocking should be done within 30 seconds
after that initial unlocking.
TRUNK UNLOCK FUNCTION
.
PRESSING THE TRANSMITTER TRUNK BUTTON
Press the "TRUNK" button twice within 5 seconds and the trunk
lid will be unlocked.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-190
KEYLESS ENTRY HAZARD ANSWERBACK AND
HORN ANSWERBACK FUNCTION
.
KEYLESS ENTRY HAZARD ANSWERBACK
FUNCTION*
1
If the keyless entry transmitter is used to send a lock signal to
the ETACS-ECU, all doors are locked and the hazard warning
lamps flash once. If an unlock signal is sent, the driver's door is
unlocked first,*
2 and if a second signal is sent, all doors are
unlocked. Each time the unlock signal is sent, the hazard warn-
ing lamps flash twice.
NOTE: *
1: The hazard answerback function can be customized
using the keyless entry transmitter (Refer to Group 42 P.42-72,
Keyless Entry System) or by using the multi center display
(middle grade type). Refer to P.54B-486.
NOTE: *
2: Vehicles with a multi center display (middle grade
type) can be customized so that a single unlock operation will
unlock all doors. Refer to P.54B-486.
.
KEYLESS ENTRY HORN ANSWERBACK
FUNCTION
If the keyless entry transmitter is used to send a lock signal to
the ETACS-ECU, the first signal locks all doors while the sec-
ond signal sounds the horn once.
NOTE: : The horn answerback function can be customized by
using the keyless entry transmitter (Refer to Group 42 P.42-72,
Keyless Entry System) or by using the multi center display
(middle grade type). Refer to P.54B-486.
TIMED LOCKING MECHANISM
.After unlocking the doors with the keyless entry transmitter, if
no doors are opened, if the ignition key is not inserted or if the
locking function is not operated, the ETACS-ECU automatically
locks the doors in 30 seconds.
NOTE: The timed locking function can be customized on vehi-
cles equipped with a multi center display (middle grade type).
Refer to P.54B-486.