Mitsubishi 380. Manual — part 55
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-217
STEP 11. Check overhead console assembly connector
D-03 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Is overhead console assembly connector D-03 in good
condition?
YES : Go to Step 12.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Check that the sunroof works normally.
STEP 12. Check the wiring harness between sunroof
switch connector D-03-1 (terminal 4) and overhead
console assembly connector D-03 (terminal 6).
Q: Is the wiring harness between sunroof switch connector
D-03-1 (terminal 4) and overhead console assembly
connector D-03 (terminal 6) in good condition?
YES : Go to Step 13.
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.
STEP 13. Check the wiring harness between overhead
console assembly connector D-03 (terminal 6) and ground.
Q: Is the wiring harness between overhead console
assembly connector D-03 (terminal 6) 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. Check that
the sunroof works normally.
16DB362A
CONNECTOR: D-03
HARNESS SIDE
16DB362A
CONNECTOR: D-03
HARNESS SIDE
AC307976
OVERHEAD CONSOLE
ASSEMBLY
CONNECTOR: D-03-1
HARNESS SIDE
AB
6
4
5
3 2 1
16DB362A
CONNECTOR: D-03
HARNESS SIDE
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-218
STEP 14. Check the wiring harness between sunroof
switch connector D-03-1 (terminals 3, 5 and 6) and
overhead console assembly connector D-03 (terminals 7, 5
and 4).
Q: Is the wiring harness between sunroof switch connector
D-03-1 (terminals 3, 5 and 6) and overhead console
assembly connector D-03 (terminals 7, 5 and 4) in good
condition?
YES : Go to Step 15.
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.
STEP 15. Check the wiring harness between sunroof motor
assembly connector D-04 (terminals 6, 7 and 8) and
overhead console assembly connector D-03 (terminals 4, 7
and 5).
Q: Is the wiring harness between sunroof motor assembly
connector D-04 (terminals 6, 7 and 8) and overhead
console assembly connector D-03 (terminals 4, 7 and 5)
in good condition?
YES : Go to Step 16.
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.
STEP 16. Replace the sunroof switch.
(1) Replace the sunroof switch.
(2) Check that the sunroof works normally.
Q: Does the sunroof works normally?
YES : No action is necessary and testing is complete.
NO : Replace the sunroof motor assembly. Check that the
sunroof works normally.
16DB362A
CONNECTOR: D-03
HARNESS SIDE
AC307976
OVERHEAD CONSOLE
ASSEMBLY
CONNECTOR: D-03-1
HARNESS SIDE
AB
6
4
5
3 2 1
16DB363A
CONNECTORS: D-03, D-04
D-04
D-03
D-03
D-04
HARNESS SIDE
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-219
INSPECTION PROCEDURE F-2: Sunroof: Any of the sunroof switch positions is defective.
.
TECHNICAL DESCRIPTION (COMMENT)
The sunroof switch or the sunroof motor assembly
may be defective.
.
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
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991958: diagnostic tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A
Check the input signal (by using the pulse check mode of
the monitor).
Check the input signals from the sunroof switch.
CAUTION
To prevent damage to diagnostic tool MB991958, always
turn the ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting diagnostic tool
MB991958.
(1) Connect diagnostic tool MB991958.Refer to "How to
connect SWS monitor
(2) Operate the diagnostic tool MB991958 according to the
procedure below to display "Pulse check."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "Pulse Checking."
(3) When each function of the sunroof switch is operated
(turned on), check that diagnostic tool MB991958 sounds.
Q: Does diagnostic tool MB991958 sound when the
sunroof switch is operated?
YES : Replace the sunroof motor assembly. Check that the
sunroof works at all positions normally.
NO : Refer to Inspection Procedure M-8 "ETACS-ECU
does not receive any signal from the up, open or
close/down switch
00DB076A
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-220
INSPECTION PROCEDURE F-3: Sunroof: Sunroof Timer Function does not Work Normally.
NOTE: This troubleshooting requires use of
diagnostic tool MB991958 and SWS monitor kit
MB991813. For details of how to use the SWS moni-
tor, refer to "How to connect SWS monitor
."
.
CIRCUIT OPERATION
• The sunroof timer function works according to the
signals from the following switches:
• Ignition switch (IG1): OFF
• Front door switch: OFF
• Vehicle condition
• Ignition switch: LOCK position
• Front door: Closed
• When the driver’s door is opened and closed
while the sunroof timer function is on, the sunroof
operative duration will be changed.
.
TECHNICAL DESCRIPTION (COMMENT)
Is the sunroof timer function does not work normally,
the input circuits from the switches described in
"CIRCUIT OPERATION", the sunroof motor assem-
bly, the ETACS-ECU or the SWS communication line
may be defective.
.
TROUBLESHOOTING HINTS
• Refer to circuit diagrams GROUP-
• Refer to configuration diagrams GROUP-
• The front door 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
DIAGNOSIS
Required Special Tools:
• MB991223: Test Harness Set
• MB991958: diagnostic tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A
• MB991813: SWS Monitor Kit
• MB991806: SWS Monitor Cartridge
• MB991812: SWS Monitor Harness (For Column-ECU)
• MB991822: Test Probe Harness
SUNROOF-ECU
SUNROOF MOTOR
ASSEMBLY
·
FRONT DOOR
SWITCH (LH)
· IGNITION SWITCH (IG1)
· SUNROOF ECU ACK
INPUT SIGNAL
Sunroof Timer Function
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