Mitsubishi Montero (2002-2004). Manual - part 350
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-447
INTERIOR LIGHT
GENERAL DESCRIPTION CONCERNING INTERIOR LIGHT
M1549021800065
The ECU related to the interior light function types
and various control functions are as follows.
Dome light control function
When the dome light switch is at the door position,
the ETACS-ECU controls the lighting of the dome
light as follows:
• When a door is opened to get on or get off the
vehicle with the ignition switch off, the dome light
lights up at a luminance of 100 percent. When a
door is closed, the dome light dims at a lumi-
nance of 65 percent, and goes off 30 seconds
later. However if the ignition switch is turned ON
or if all doors are locked while they are closed,
the dome light will go off at that point.
• When a door is opened with the ignition switch
ON, the dome light lights up at a luminance of
100 percent. When a door is closed, the dome
light goes off.
• When the ignition key is removed with all doors
closed, the dome light lights up at a luminance of
100 percent, and goes off 30 seconds later. How-
ever if the ignition key is inserted again or if all
doors are locked while the dome light is lighting,
the dome light will go off at that point.
• The dome light is flashed twice when door is
locked with keyless entry. When door is unlocked
with keyless entry, the dome light lights at a lumi-
nance of 100 percent, and goes off 15 seconds
later.
NOTE: The dotted lines indicate that lighting mode when the ignition switch is turned ON, all doors are locked
during the timer illumination time.
Ignition key hole illumination light function
The ignition key cylinder illumination light illuminates
when the driver's door is opened with the ignition
switch off, and for thirty seconds after the driver's
door is closed. It also illuminates for thirty seconds
after the ignition key is pulled out. In any case, it
goes out when the ignition switch is turned on.
FUNCTION
CONTROL ECU
Dome light control function
ETACS-ECU
Ignition key hole illumination light function
ETACS-ECU
AC101555AC
t: 30 seconds
ON
ON (Any door is open)
LOCK
LOCK (OFF)
OFF (All doors are closed)
OFF
Ignition switch
Door switch
Keyless entry system
door lock or unlock signal
t
t
t
ACC
Key removed
UNLOCK
100%
65%
0%
Dome light intensity