Mitsubishi Galant (2004+). Manual — part 264
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-247
INSPECTION PROCEDURE F-1: Sunroof: Sunroof does not operate.
SUNROOF-ECU
SUNROOF
SWITCH
OVERHEAD
CONSOLE
ASSEMBLY
SUNROOF MOTOR
ASSEMBLY
IGNITION
SWITCH (IG2)
FUSIBLE
LINK
5
JUNCTION
BLOCK
JUNCTION
BLOCK
Sunroof Motor Assembly Power Supply Circuit
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-248
.
CIRCUIT OPERATION
• The sunroof motor assembly is energized
through fusible link (5) by the battery.
• When the ignition switch (IG2) signal is on, the
sunroof motor assembly is ready to operate.
.
TROUBLESHOOTING HINTS
• The sunroof switch may be defective
• The sunroof motor assembly may be defective
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
AC305015
AC305015AF
FUSIBLE LINK (5)
AC305231
AC305231BW
CONNECTORS: C-27
AC305415
AC305415
C-212
C-215
C-205
AX
JUNCTION BLOCK
(FRONT VIEW)
CONNECTORS: C-205, C-212, C-215
AC305264
AC305264
AO
CONNECTOR: D-03, D-04
D-04
D-03
AC307976
OVERHEAD CONSOLE
ASSEMBLY
CONNECTOR: D-03-1
AC
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-249
DIAGNOSIS
Required Special Tool:
• MB991223: Test Harness Set
STEP 1. Check sunroof motor assembly connector D-04
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is sunroof motor assembly connector D-04 in good
condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Check that the sunroof works normally.
STEP 2. Check the fusible link (5) line of power supply
circuit to the sunroof motor assembly. Measure the voltage
at sunroof motor assembly connector D-04.
(1) Disconnect sunroof motor assembly connector D-04 and
measure the voltage available at the wiring harness side of
the connector.
(2) Measure the voltage between terminal 1 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 4.
NO : Go to Step 3.
AC305264
AC305264
AM
CONNECTOR: D-04
HARNESS SIDE
AC305264
AC305264
AM
CONNECTOR: D-04
HARNESS SIDE
AC209365 FG
CONNECTOR D-04
(HARNESS SIDE)
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-250
STEP 3. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 1) and fusible link (5).
AC305015
AC305015AF
FUSIBLE LINK (5)
AC305264
AC305264
AM
CONNECTOR: D-04
HARNESS SIDE
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