Mitsubishi Galant 9G. Manual — part 46
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-180
Q: Is the wiring harness between power window main
switch connector E-12 (terminal 12) 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-12.
(1) Disconnect power window main switch connector E-12 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 13 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
. The power windows function should now
work normally.
AC305262
3
9
4
12
14
6
13
5
1110
8
2
7
1
HARNESS SIDE
CONNECTOR:E-12
AC
AC209365
3
9
4
12
14
6
13
5
1110
8
2
7
1
EG
CONNECTOR E-12
(HARNESS SIDE)
AC305413
CONNECTOR:C-219
AC
JUNCTION BLOCK
(REAR VIEW)
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-181
STEP 14. Check the wiring harness between power
window relay connector C-203 (terminal 4) and power
window main switch connector E-12 (terminal 13).
AC305416
JUNCTION BLOCK SIDE
C-203
HARNESS SIDE
C-215
CONNECTORS: C-203,C-215
AE
C-203
C-215
JUNCTION BLOCK
(FRONT VIEW)
AC305262
3
9
4
12
14
6
13
5
1110
8
2
7
1
HARNESS SIDE
CONNECTOR:E-12
AC
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-182
NOTE: Also check junction block connector C-215 and inter-
mediate connectors C-26 for loose, corroded or damaged ter-
minals, or terminals pushed back in the connectors. If junction
block connector C-215 or intermediate connector C-26 is dam-
aged, repair or replace the damaged component(s) as
described in GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between power window relay
connector C-203 (terminal 4) and power window main
switch connector E-12 (terminal 13) 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.
INSPECTION PROCEDURE D-2: Power Window: The power window timer function does not work
normally.
NOTE: This troubleshooting procedure requires use
of scan tool MB991958 and SWS monitor kit
MB991813. For details on how to use the SWS mon-
itor, refer to "How to use SWS monitor
.
AC305231AC
CONNECTOR:C-26
HARNESS SIDE
E
IGNITION SWITCH (IG1)
E
FRONT DOOR SWITCH
POWER WINDOW
MOTOR
5
FUSIBLE LINK
ETACS-
ECU
JUNCTION
BLOCK SIDE
POWER
WINDOW
RELAY
Power Window Timer Function Circuit
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-183
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
• 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
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