2005 MITSUBISHI 380 window

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-157
STEP 9. Check power window main switch connector E-04
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is power window main switch connector E-04 in good
condition?
YES : Go to Step 10.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. The power windows function should now
work normally.
STEP 10. Check the ground circuit to the power window
main switch. Measure the resistance at power window
main switch connector E-04.
(1) Disconnect power window main switch connector E-04 and
measure the resistance available at the harness side of the
connector.
(2) Measure the resistance value between terminal 2 and
ground.
The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 12.
NO : Go to Step 11.
STEP 11. Check the wiring harness between power window
main switch E-04 (terminal 2) and ground.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-159
Q: Is the wiring harness between power window main
switch connector E-04 (terminal 2) and ground 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. The power
windows function should now work normally.
STEP 12. Check the battery power supply circuit to the
power window main switch. Measure the voltage at power
window main switch connector E-04.
(1) Disconnect power window main switch connector E-04 and
measure the voltage available at the harness side of the
connector.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 10 and ground.
The voltage should measure approximately 12 volts
(battery positive voltage).
Q: Is the measured voltage approximately 12 volts (battery
positive voltage)?
YES : Replace the power window main switch. The power
windows function should now work normally.
NO : Go to Step 13.
STEP 13. Check ETACS-ECU connector C-219 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector C-219 in good condition?
YES : Go to Step 14.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. The power windows function should now
work normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-160
STEP 14. Check the wiring harness between power
window relay connector C-203 (terminal 4) and power
window main switch connector E-04 (terminal 10).
NOTE: Also check junction block connector C-215 and inter-
mediate connectors C-12 for loose, corroded or damaged ter-
minals, or terminals pushed back in the connectors. If junction
block connector C-215 or intermediate connector C-12 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 relay
connector C-203 (terminal 4) and power window main
switch connector E-04 (terminal 10) in good condition?
YES : Replace the ETACS-ECU. The power windows
function should now work 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. The power
windows function should now work normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-161
INSPECTION PROCEDURE D-2: Power Window: The power window timer function does not work
normally.
NOTE: This troubleshooting procedure requires use
of diagnostic tool MB991958 and SWS monitor kit
MB991813. For details on how to use the SWS mon-
itor, refer to "How to connect SWS monitor
P.54B-13."
.
CIRCUIT OPERATION
The ETACS-ECU operates the power window timer
function according to the following signals:
Ignition switch (IG1)
Front door switch
.
TECHNICAL DESCRIPTION (COMMENT)
If the power window timer function does not work
normally, its input circuit, the ETACS-ECU or the
front-ECU may be defective.
.
TROUBLESHOOTING HINTS
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
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

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-163
STEP 2. Check the input signal by using "DATA LIST"
menu of the SWS monitor.
Turn the ignition switch to the "ON" position before checking
input signals from the ignition switch (IG1).
(1) Operate diagnostic tool MB991958 according to the
procedure below to display "ETACS ECU."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "SWS MONITOR."
e. Select "Data List."
f. Select "ETACS ECU."
(2) Check that normal conditions are displayed for the items
described in the table below.
Q: Does the diagnostic tool MB991958 display the items
"IG SW (IG1)", "FRONT DOOR SW" as normal
condition?
Normal condition displayed for all the items : Replace
the ETACS-ECU. Verify that the power window timer
works normally.
Normal condition is not displayed for "IG SW (IG1)" :
Refer to Inspection Procedure M-2 "ETACS-ECU
does not receive any signal from the ignition switch
(IG1) P.54B-408."
Normal condition is not displayed for "FRONT DOOR
SW" : Refer to Inspection Procedure M-4 "ETACS-ECU
does not receive any signal from the front door
switches P.54B-413." ITEM NO. ITEM NAME NORMAL CONDITION
ITEM 30 IG SW (IG1) OFF
ITEM 32 FRONT DOOR SW

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-164
INSPECTION PROCEDURE D-3: Power Window: Only the front door window (RH) does not work by
operating power window main switch.
.
CIRCUIT OPERATION
The front power window regulator motor (RH) lower
or raises the door window (RH) when the power win-
dow main switch is moved to "UP" or "DOWN" posi-
tion.
.
TECHNICAL DESCRIPTION (COMMENT)
The power window main switch or the front power
window regulator motor (RH) may be defective.
.
TROUBLESHOOTING HINTS
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
The power window main switch may be defective
The front power window regulator motor (RH)
may be defective
The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-165
DIAGNOSIS
Required Special Tool:
MB991223: Harness Set
STEP 1. Check power window main switch connector E-04
and front power window regulator motor (RH) connector
E-03 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Are power window main switch connector E-04 and
front power window regulator motor (RH) connector
E-03 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. When the power window main switch is
operated, the front power window (RH) should lower
or raise normally.
STEP 2. Check the power window main switch.
(1) Remove the power window main switch. Refer to GROUP
42, Door, Door Glass and Regulator P.42-39.
(2) Check continuity while power window main switch is moved
to "UP" and "DOWN" position.
Q: Is the power window main switch normal?
YES : Go to Step 3.
NO : Replace the power window main switch. When the
power window main switch is operated, the front
power window (RH) should lower or raise normally.
FRONT (RH)
SWITCH
POSITIONTESTER
CONNECTIONSPECIFIED
CONDITION
UP 12
10, 14 2 Less than 2 ohms
OFF 12
14, 12 2,
14
2
DOWN 12
2, 14 10

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-166
STEP 3. Check the front power window regulator motor
(RH).
(1) Remove the front power window regulator motor (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 front power window regulator motor (RH) normal?
YES : Go to Step 4.
NO : Replace the front power window regulator motor
(RH). When the power window main switch is
operated, the front power window (RH) should lower
or raise normally.
STEP 4. Check the wiring harness between power window
main switch connector E-04 (terminals 12 and 14) and front
power window regulator motor (RH) connector E-03
(terminals 2 and 1).
Q: Is the wiring harness between power window main
switch connector E-04 (terminals 12 and 14) and front
power window regulator motor (RH) connector E-03
(terminals 2 and 1) 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
power window main switch is operated, the front
power window (RH) should lower or raise normally. 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