POWER SYSTEMS
TABLE OF CONTENTS
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AUTOMATIC DAY / NIGHT MIRROR
DESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . . . . 1
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING - AUTOMATIC
DAY/NIGHT MIRROR
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STANDARD PROCEDURE
STANDARD PROCEDURE - COMPASS
CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . 2
STANDARD PROCEDURE - COMPASS
VARIATION ADJUSTMENT . . . . . . . . . . . . . . . . 3
AUTOMATIC DAY / NIGHT
MIRROR
DESCRIPTION
The automatic dimming inside day/night rear view
mirror system is a completely self-contained unit
that replaces the standard equipment inside rear
view mirror. This system will automatically change
the reflectance of the inside rear view mirror to pro-
tect the driver from the unwanted headlight glare of
trailing vehicles while driving at night. The auto-
matic
day/night
inside
mirror
receives
ignition
switched battery current through a fuse in the junc-
tion block, and will only operate when the ignition
switch is in the On position.
Contained within the mirror is a compass/temper-
ature display as well as two LED reading lamps.
The automatic day/night mirror sensitivity cannot
be repaired or adjusted. If any component of this unit
is inoperative or damaged, the entire automatic day/
night inside rear view mirror unit must be replaced.
OPERATION
The automatic day/night mirror is equipped with
three buttons: the left switch for the left LED lamp,
the right switch for the right side LED lamp and the
center switch for the compass/temperature function.
Pressing the left and right switch simultaneously will
turn the auto dim function on or off. A green light
next to the right button will indicate when the dim-
ming feature is activated. The mirror also senses the
backup lamp circuit, and will automatically disable
its self-dimming feature whenever the transmission
gear selector is in the Reverse position.
The compass/temperature display provides the out-
side temperature and one of eight compass headings.
Press and release the center button once within 3
seconds to display compass/temperature (Fahren-
heit). Press and release the center button twice
within 3 seconds to display compass/temperature
(Celsius). Press and release the center button three
times within 3 seconds to deactivate the feature.
A thin layer of electrochromatic material between
two pieces of conductive glass make up the face of
the mirror. Two photocell sensors are used to monitor
light levels and adjust the reflectance of the mirror.
The ambient photocell sensor faces forward, to detect
the outside light levels. The headlamp sensor is
located on the mirror housing just to the left of the
switch and facing rearward, to detect the light level
received at the rear window side of the mirror. When
the difference between the two light levels becomes
too great (the light level received at the rear of the
mirror is much higher than that at the front of the
mirror), the mirror begins to darken.
TJ
POWER SYSTEMS
8N - 1