Mitsubishi 380. Manual — part 89
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-353
STEP 3. Using Diagnostic Tool MB991958, read the
combination meter diagnostic trouble code.
(1) Check whether a combination meter-related DTC is set.
(2) Turn the ignition switch to the "ON" position.
Check whether the combination meter-related DTC is set.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Diagnose the combination meter. Refer to
NO : Go to Step 4.
00DB076A
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-354
STEP 4. Use Diagnostic Tool MB991958 to select "ECU
COMM Check" on the SWS monitor display.
Check the ETACS-ECU.
CAUTION
Connect special tool MB991910 before connecting special
tool MB991812. Be sure to connect special tool MB991806
after turning on special tool MB991824.
(1) Connect the SWS monitor. Refer to "How to connect SWS
monitor
."
(2) Turn the ignition switch to the "ON" position.
(3) Operate Diagnostic Tool MB991958 according to the
procedure below to display "ECU COMM Check."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "SWS MONITOR."
e. Select "ECU COMM Check."
(4) Diagnostic Tool MB991958 should show "OK" on the "ECU
COMM Check" menu for the "ETACS ECU" menu.
Q: Is "OK" displayed for the "ETACS ECU" menu?
YES : Go to Step 5.
NO : Refer to Inspection Procedure A-3 "Communication
with the ETACS-ECU is not possible
."
STEP 5. Replace the combination meter.
(1) Replace the combination meter.
(2) Check that the fog lamp indicator lamp illuminates normally.
Q: Is the fog lamp indicator lamp operating properly?
YES : No action is necessary and testing is complete.
NO : Replace the ETACS-ECU. Check that the fog lamp
indicator lamp illuminates normally.
00DB076A
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
AC302210
COLUMN SWITCH
CONNECTOR
COLUMN SWITCH
CONNECTOR AT
HARNESS SIDE
MB991812
AB
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-355
54B
INTERIOR LAMP
GENERAL DESCRIPTION CONCERNING THE INTERIOR LAMP
M1549021800236
• Refer to circuit diagrams GROUP-
• Refer to configuration diagrams GROUP-
The following ECUs affect the functions and control
of the interior lamps.
Interior lamp control function
The ETACS-ECU controls the interior lamps by turn-
ing them on and off in the following way:
• When a door is opened with the ignition switch
off, the interior lamps up to a luminance of 100
percent. When a door is closed, the interior lamps
dims at a luminance of 65 percent, and goes off
30 seconds later. However if the ignition switch is
turned ON or if a door is locked while the interior
lamps is dimming, the dome lamp will go off at
that point.
• When a door is opened with the ignition switch
ON, the interior lamps up at a luminance of 100
percent. When a door is closed, the interior lamps
go off.
• When the ignition key is removed with all doors
closed, the interior lamps up at a luminance of
100 percent, and goes off 30 seconds later. How-
ever if the ignition key is inserted again or if a
door is locked while the interior lamps is lighting,
the interior lamps will go off at that point.
• To check keyless entry operations more easily,
the interior lamps is flashed once when the doors
are locked. When the doors are unlocked, the
interior lamps at a luminance of 100 percent, and
go off 15 seconds later.
NOTE: The dimmer function can be customised on
vehicles equipped with a multi center display (middle
grade type). Refer to
.
NOTE: The dotted lines indicate that lighting mode
when the ignition switch is turned ON, door is locked,
or any door is opened during the timer illumination
time.
FUNCTION
CONTROL ECU
Interior lamp control function
ETACS-ECU
Interior lamp automatic-shutoff function
ETACS-ECU
Ignition key hole illumination lamp function
ETACS-ECU
Door ajar indicator
ETACS-ECU
Seat belt indicator
ETACS-ECU
AC101555AF
ON
ACC
LOCK (OFF)
Key removed
ON (Any door is open)
OFF (All doors are closed)
LOCK
OFF
UNLOCK
100 %
65 %
0 %
t1: 30 seconds
t2: 15 seconds
t1
t1
t2
Ignition switch
Door switch
Keyless entry system
door lock or unlock signal
Interior light intensity
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-356
Interior lamp automatic-shutoff function
Illuminated interior lamps such as the front dome
lamp, etc. (all lamps using the dome lamp fuse as the
power supply) will automatically go off in the follow-
ing conditions to prevent the battery from discharging
as a result of forgetting to turn off the lamps or
incomplete closing of the door.
• When the ignition switch is turned off and more
than 30 minutes pass with the interior lamp illumi-
nated, the interior lamps will go off automatically.
• When the ignition switch is turned off and one of
the door switches remains open for 30 minutes
continuously, the interior lamps will go off auto-
matically.
NOTE: The interior lamp automatic shutoff function
can be customised on vehicles equipped with a multi
center display (middle grade type). Refer to
Ignition key hole illumination lamp function
The ignition key hole illumination lamp illuminates when the
driver's door is opened with the ignition switch off, and for 30
seconds after the driver's door is closed. It also illuminates for
30 seconds after the ignition key is pulled out. In any case, it
goes out when the ignition switch is turned on.
Door ajar indicator
The combination meter receives the signal sent from the
ETACS-ECU about whether each door is open or closed and
turns the door ajar indicator on and off. While the door ajar indi-
cator is illuminated, the door ajar warning function is activated
and the door ajar indicator flashes 4 times. If the door remains
open even after the 4 warning flashes, the door ajar indicator
will be illuminated again. And when the interior lamp auto-
matic-shutoff function is activated, the door ajar indicator is
extinguished.
AC210856AB
T1
T2
T2
ON
ON (Any door is open)
Illuminated
ACC
OFF
Extinguished
Ignition switch
Door switch
Interior light
ON
DOOR
Dome light switch
T1: 30 minutes
T2: Within 30 minutes
T1
T2
OFF (All doors are closed)
T1
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