2005 MITSUBISHI 380 window

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-167
INSPECTION PROCEDURE D-4: Power Window: Power windows do not work normally by operating
the front passenger's or rear passenger's sub switches.
.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-168
CIRCUIT OPERATION
power window regulator motors raise and lower the
door windows when the front passenger's or rear
passenger's sub switch is moved to "UP" or "DOWN"
position.
.
TECHNICAL DESCRIPTION (COMMENT)
A power window sub switch or power window regula-
tor motor may be defective. Or, the power window
lock switch (incorporated in the power window main
switch in the driver’s door) may remain pressed in
the "LOCK" position.
.
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 sub switch may be
defective
The rear power window sub switches may be
defective
The front power window regulator motor (RH)
may be defective
The rear power window regulator motors may be
defective
The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
DIAGNOSIS
Required Special Tool:
MB991223: Harness Set
STEP 1. 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 2.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. When the front power window sub switch
(LH) is operated, the front power window (LH) should
raise and lower normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-169
STEP 2. Check each switch on the power window main
switch for continuity.
(1) Remove the power window main switch. Refer to GROUP
42, Door, Door Glass and Regulator P.42-39.
(2) Check continuity when each switch on the power window
main switch is operated to "UP" or "DOWN" position.
NOTE: *: Set the window lock switch to UNLOCK 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 sub switch is operated, the power
windows should raise and lower normally.
STEP 3. Check the power window lock switch.
Q: Is the power window lock switch in the "UNLOCK"
position?
YES : Go to Step 4.
NO : Operate the power window lock switch to the
"UNLOCK" position. When the power window sub
switch is operated, the power windows should raise
and lower normally.
STEP 4. Check which door window does not move.
Q: Which door window does not move?
Front passenger's side : Go to Step 5.
Rear passenger (LH) : Go to Step 14.
Rear passenger (RH) : Go to Step 23. SWITCH POSITION TESTER
CONNECTIONSPECIFIED
CONDITION
FRONT
(RH)UP 12
10, 14 2, Less than 2 ohms
OFF 12
2, 14 2 Less than 2 ohms
DOWN 14
10, 12 2 Less than 2 ohms
FRONT
(LH)UP 7
10, 9 2* Less than 2 ohms
OFF 7
9, 7 2*, 9 2* Less than 2 ohms
DOWN 9
10, 7 2* Less than 2 ohms
REAR (LH) UP 1
10, 3 2* Less than 2 ohms
OFF 1
3, 1 2*, 3 2* Less than 2 ohms
DOWN 2
13, 1 12* Less than 2 ohms
REAR (RH) UP 10
6, 4 2* Less than 2 ohms
OFF 4
6, 4 2*, 2* 6 Less than 2 ohms
DOWN 4
10, 2* 6 Less than 2 ohms

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-170
STEP 5. Check front power window sub switch connector
E-12 and front power window regulator motor (LH)
connector E-13 for loose, corroded or damaged terminals,
or terminals pushed back in the connector.
Q: Are front power window sub switch connector E-12 and
front power window regulator motor (LH) connector
E-13 in good condition?
YES : Go to Step 6.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. When the front power window sub switch
(LH) is operated, the front power window (LH) should
raise and lower normally.
STEP 6. Check the front power window sub switch for
continuity.
(1) Remove the front power window sub switch. Refer to
GROUP 42, Door, Door Glass and Regulator P.42-39.
(2) Check continuity when the front power window sub switch is
operated to "UP" or "DOWN" position.
Q: Is the front power window sub switch normal?
YES : Go to Step 7.
NO : Replace the front power window sub switch. When
the front power window sub switch is operated, the
front power window should raise and lower normally.
SWITCH
POSITIONTESTER
CONNECTIONSPECIFIED
CONDITION
UP 4
5, 7 6 Less than 2 ohms
OFF 4
5, 7 8
DOWN 4
6, 7 8

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-171
STEP 7. Check the front power window regulator motor
(LH).
(1) Remove the front power regulator assembly (LH). 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 (LH) normal?
YES : Go to Step 8.
NO : Replace the front power regulator assembly (LH).
When the front power window sub switch (LH) is
operated, the front power window (LH) should raise
and lower normally.
STEP 8. Check the battery power supply circuit to the front
power window sub switch. Measure the voltage at front
power window sub switch connector E-12.
(1) Disconnect front power window sub switch connector E-12
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 11.
NO : Go to Step 9. 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-172
STEP 9. 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 10.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. When the front power window sub switch
(LH) is operated, the front power window (LH) should
raise and lower normally.
STEP 10. Check the wiring harness between power
window relay connector C-203 (terminal 4) and front power
window sub switch connector E-12 (terminal 6).

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-173
NOTE: Also check junction block connector C-215 and inter-
mediate connector C-26. If junction block connector C-215 or
intermediate connectors C-26 is damaged, 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 front power window
sub switch connector E-12 (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
front power window sub switch is operated, the front
power window (LH) should raise and lower normally.
STEP 11. Check the ground circuit to the front power
window sub switch. Measure the resistance at front power
window sub switch connector E-12.
(1) Disconnect front power window sub switch connector E-12
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 13.
NO : Go to Step 12.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-174
STEP 12. Check the wiring harness between power
window main switch connector E-04 (terminals 7 and 9)
and front power window sub switch connector E-12
(terminals 8 and 5).
NOTE: Also check intermediate connectors C-12 and C-26. If
intermediate connector C-12 or C-26 is damaged, 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 7 and 9) and front
power window sub switch connector E-12 (terminals 8
and 5) in good condition?
YES : Replace the power window main switch. When the
front power window sub switch (LH) is operated, the
front power window (LH) 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
front power window sub switch (LH) is operated, the
front power window (LH) should raise and lower
normally.