POWER MIRROR SYSTEMS
TABLE OF CONTENTS
page page
DESCRIPTION AND OPERATION
INTRODUCTION ..........................1
HEATED MIRROR .........................1
POWER SIDE VIEW MIRROR POSITION
SENSING ..............................1
DIAGNOSIS AND TESTING
AUTOMATIC DAY/NIGHT INSIDE MIRROR .....2
HEATED MIRROR .........................2
MIRROR MOTOR .........................2
MIRROR SWITCH.........................2
REMOVAL AND INSTALLATION
MIRROR SWITCH.........................3
MIRROR SWITCH.........................3
DESCRIPTION AND OPERATION
INTRODUCTION
DESCRIPTION
Power mirrors are controlled by a single switch
assembly located on the driver’s door trim panel. The
switch has a rocker button marked L (left) and R
(right) for mirror selection and a single platform but-
ton for mirror UP, DOWN, RIGHT and LEFT move-
ment.
The motors which operate the mirrors are part of
the mirror assembly and cannot be replaced sepa-
rately.
OPERATION
The vehicle is equipped with an Ignition-Off Draw
Fuse which is used when it is originally shipped from
the factory. This fuse is located in the Junction Block
and helps to prevent battery discharge during stor-
age when disconnected.
This fuse is included in the power mirror circuity
and should be checked if the mirrors are inoperative.
HEATED MIRROR
DESCRIPTION
Heated mirrors are available with Memory Mirrors
and Rear Window Defogger only.
OPERATION
The heated mirror is controlled by the rear window
defogger switch. Only time that the heated mirror is
on is when the rear window defogger is on. The mir-
ror should become warm to the touch.
POWER SIDE VIEW MIRROR POSITION
SENSING
DESCRIPTION
The mirror switch on the door trim panel operates
both the outside rear view mirrors. On vehicles
equipped with Memory/Heated Seats, the Memory
Heated Seat Mirror Module (MHSMM) activates the
mirror motors in recall mode.
OPERATION
Position sensing potentiometers built into each
mirror’s vertical and horizontal motor assembly.
These potentiometers provide a sense voltage to the
MHSMM that indicates where the actual location of
each mirror is. If a memory position is set, the values
of the potentiometers at that location are stored in
memory.
Fig. 1 Power Mirror Switch
LH POWER MIRROR SYSTEMS 8T - 1
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