Mitsubishi 380. Manual — part 53
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-209
SUNROOF
GENERAL DESCRIPTION CONCERNING THE SUNROOF
M1549021200223
• Refer to circuit diagrams GROUP-
• Refer to configuration diagrams GROUP-
The following ECU affects the functions and control
of the sunroof.
Sunroof timer function
The ETACS-ECU enables opening and closing of the sunroof
for 30 seconds after the ignition is switched off.
During this timed operation, if the driver's door or passenger’s
door is opened, the sunroof timer function is deactivated from
that moment.
FUNCTION
CONTROL ECU
Sunroof timer function
ETACS-ECU, sunroof motor assembly
AC106227
ON
OFF
Possible
Impossible
ON
(Open)
OFF
(Closed)
Ignition
switch
Sunroof
operation
Door
Switch
AC
30 s
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-210
INSPECTION PROCEDURE F-1: Sunroof: Sunroof does not operate.
.
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
• Refer to circuit diagrams GROUP-
• Refer to configuration diagrams GROUP-
• 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)
16DB357A
CONNECTORS: C-27
16DB358A
CONNECTORS: D-03, D-04
D-04
D-03
AC307976
OVERHEAD CONSOLE
ASSEMBLY
CONNECTOR: D-03-1
AC
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-211
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.
16DB359A
CONNECTOR: D-04
HARNESS SIDE
16DB359A
CONNECTOR: D-04
HARNESS SIDE
AC209365FG
CONNECTOR D-04
(HARNESS SIDE)
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-212
STEP 3. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 1) and fusible link (5).
NOTE: Also check junction block connectors C-212, C-215 and
intermediate connector C-27 for loose, corroded, or damaged
terminals, or terminals pushed back in the connector. If junction
block connector C-212, C-215 or intermediate connector C-27
is damaged, repair or replace the damaged component(s) as
described in GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between sunroof motor assembly
connector D-04 (terminal 1) and fusible link (5) 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. Check that
the sunroof works normally.
AC305015
AC305015AF
FUSIBLE LINK (5)
16DB359A
CONNECTOR: D-04
HARNESS SIDE
54DB064A
CONNECTOR: C-27
54DB065A
C-212
HARNESS SIDE
HARNESS SIDE
C-215
CONNECTORS: C-212, C-215
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