2005 MITSUBISHI 380 Workshop Manual

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-89
STEP 3. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 1) and fusible link (5).

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-90
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
P.00E-2.
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. The system
should communicate with the sunroof-ECU normally.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-91
STEP 4. Check the ignition switch (IG2) 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) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 2 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 6.
NO : Go to Step 5.
STEP 5. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 2) and ignition switch
(IG2).

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-92
NOTE: Also check junction block connectors C-215 and C-205
for loose, corroded, or damaged terminals, or terminals pushed
back in the connector. If junction block connector C-215 or
C-205 is damaged, repair or replace the damaged compo-
nent(s) as described in GROUP 00E, Harness Connector
Inspection P.00E-2.
Q: Is the wiring harness between sunroof motor assembly
connector D-04 (terminal 2) and the ignition switch (IG2)
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 system
should communicate with the sunroof-ECU normally.
STEP 6. Check the ground circuit to the sunroof motor
assembly. Measure the resistance at sunroof motor
assembly connector D-04.
(1) Disconnect sunroof motor assembly connector D-04 and
measure the resistance available at the wiring harness side
of the connector.
(2) Measure the resistance value between terminal 5 and
ground.
The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 8.
NO : Go to Step 7.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-93
STEP 7. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 5) and ground.
Q: Is the wiring harness between sunroof motor assembly
connector D-04 (terminal 5) 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 system
should communicate with the sunroof-ECU normally.
STEP 8. Check ETACS-ECU connector C-218 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector C-218 in good condition?
YES : Go to Step 9.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. The system should communicate with the
sunroof-ECU normally.
STEP 9. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 10) and ETACS-ECU
connector C-218 (terminal 53).

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-94
NOTE: Also check intermediate connector C-27 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector C-27 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 sunroof motor assembly
connector D-04 (terminal 10) and ETACS-ECU connector
C-218 (terminal 53) in good condition?
YES : Go to Step 10.
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 system
should communicate with the sunroof-ECU normally.
STEP 10. Replace the sunroof motor assembly.
(1) Replace the sunroof motor assembly.
(2) The system should communicate with the sunroof-ECU
normally.
Q: Can the system communicate with the sunroof-ECU?
YES : No action is necessary and testing is complete.
NO : Replace the ETACS-ECU. The system should
communicate with the sunroof-ECU normally.
TONE ALARM
GENERAL DESCRIPTION CONCERNING THE TONE ALARMM1549021000326
The tone alarm functions are as follows. These func-
tions are controlled by relevant ECUs.
FUNCTION CONTROL ECU
Light reminder tone alarm function ETACS-ECU, column switch
Seat belt tone alarm function ETACS-ECU
Door ajar warning buzzer ETACS-ECU
Center display operation tone display >ETACS-ECU
Turn-signal lamp buzzer ETACS-ECU, column switch

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-95
Light reminder tone alarm function
When the taillights or headlamps is the ON position, if the igni-
tion key is removed and the driver's door is opened, a tone
alarm will sound continuously to warn that the lamps are on.
However, if the taillights or headlamps have been turned off by
the headlamp automatic-shutoff function, the tone alarm will not
sound.
Seat belt tone alarm function

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-96
If any of the following conditions is met with the igni-
tion switch at "ON" or "ST", the ETACS-ECU sounds
the tone alarm by using the driver's seat belt switch
signal and the vehicle speed signal sent from the
combination meter.
Sounds the tone alarm for six seconds when the
ignition switch is turned "ON" with the seat belt
switch on (the driver's seat belt is not fastened).
This is called "Timer function".
Sounds the tone alarm 12 cycles (after 0.5 sec-
onds) if any of the following conditions is met
when sixty seconds or more have elapsed since
the ignition switch is turned "ON". One cycle con-
sists of five-second "on" and then three-second
"off".a. The vehicle speed has reached 8 km/h (5
mph) while the seat belt switch is turned on
(driver's seat belt is not fastened) with the
ignition switch "ON.
b. The seat belt switch has been turned on
(driver's seat belt has not been fastened) for
at least ten seconds while the ignition switch
has been turned "ON" and the vehicle speed
has been 8 km/h (5 mph) or more.
NOTE: Once the tone alarm has sounded 12
cycles, it does not sound again until the vehi-
cle speed reduces to 3 km/h (2 mph) or less
even if any of the following conditions is met.
The tone alarm stops sounding if the ignition
switch or the seat belt switch is turned off (the
driver's seat belt is fastened) while the timer
operation is active.