GENTEX MIRROR
I N S T A L L A T I O
N
Instructions
by
MITO CORPORATION
Instructions for Universal Harness
These instructions have been prepared to provide
you with details necessary for complete installation of the Gentex
Automatic Dimming Mirror, Gentex Automatic Dimming
Compass/Temperature Mirror, or Gentex Auto
Dimming/Compass/Temperature Mirror with Map Lights. Be sure to read
all instructions prior to beginning the installation. Follow all the
safety guidelines outlined in this instruction book as well as those
set forth by industry and government. Please direct all operational
or troubleshooting questions to our MITO Customer Service Department
toll-free at (800) 433-6486. This Gentex Rearview Mirror Universal
Harness is designed for use in applications where a custom harness
is not available for your vehicle.
IT IS IMPORTANT THAT YOU OBTAIN THE CORRECT INFORMATION FOR
YOUR VEHICLE, OR DAMAGE TO THE WIRING SYSTEM COULD
OCCUR.
PARTS NEEDED:
One (1) Mirror
One (1) Harness
One (1) Temp Probe
Harness (only on comp/temp mirrors)
One (1) Temp Sensor (only on
comp/temp mirrors)
One (1) Hang Tag
Tools Required for Proper Installation:
Safety
Glasses
DC Voltmeter Trouble light or
Flashlight
Crimping
Pliers Power Drill
Torx Driver #20 9/16" Drill Bit
Phillips
screwdriver Knife
Wire Strippers
1.0 PREPARATION
1.1 Inspect mirror for damage
1.2 Check Parts List
for accuracy.
2.0 PREPARATION FOR ROUTING THE HARNESS (Inside the
Driver's Side Area)
2.1 Remove the "A" pillar (windshield post) trim
molding, upper windshield
trim molding (if applicable), and
kick panel trim.
INSTALLATION PRECAUTIONS/NOTES:
" Do not use excessive force when removing OE mirror
from windshield. The windshield button may separate from the
windshield or the windshield may break.
" Do not use excessive
force if removal of OE mirror button is necessary.
" Do not
route wiring over sharp metal edges or allow to be pinched behind
trim to avoid causing an electrical short or break in the wire.
" Manufacturer/distributor not responsible for
installation-related damage
to vehicle.
" Contact original
purchase source if additional information is desired regarding
these products.
" For installation situations that installer
is not familiar with, a qualified installation technician or
mechanic should be consulted for assistance.
" Use wire ties
to hold wires away from hot engine and critical parts such as
brake and steering systems.
" Do not cut or try to modify
temperature sensor harness in any way.
" Contact your local
auto dealership or auto sound center to obtain detailed
information pertaining to your specific automobile wire color
information.
3.0 REMOVE ORIGINAL EQUIPMENT (OEM) REARVIEW
MIRROR
CAUTION: DO NOT USE EXCESSIVE FORCE WHEN REMOVING MIRROR
FROM WINDSHIELD. THE WINDSHIELD BUTTON MAY SEPARATE FROM THE
WINDSHIELD OR THE WINDSHIELD MAY BREAK.
3.1 Screw mount mirror removal procedure. Note that
there are several
versions of mirror mount systems. If
unfamiliar with mirror removal, seek
professional assistance.
" Using a Philips screwdriver or a #20 torx bit, loosen
the screw in the base of the mirror.
" After loosening screw,
gently lift upward to slide mirror off of mirror mount.
3.2 Wedge mount mirror removal procedure:
(Common Method for screwless
mount).
" Using a small 1/8" (4 mm) flat-blade screwdriver,
insert the flat end into the opening at the bottom of the mirror
mount at the windshield.
" Slide the screwdriver into the
center of the mirror mount until resistance is felt.
" Gently
apply a small amount of additional upward force to lift away
locking spring in the mount.
" While still applying upward
pressure with the screwdriver, grasp the mirror bracket and wiggle
side to side. Lift mirror up toward the headliner and off the
windshield mount button.
3.3 Camlock Mirror Removal procedure: (Common
Method)
" Grasp the base of the mirror.
" Rotate 90
degrees left or right.
" Slide mirror downward toward dash to
remove.
4.0 INSTALL NEW INTERIOR MIRROR
4.1 Wedge Mount Mirror Installation:
" Slide the mirror bracket over the mirror button on
the windshield.
" Rock mirror side to side to aid installation
until mirror fits tightly onto mirror button.
" Use #20 Torx
screwdriver to tighten locking screw through hole in center of
compass pod below mirror mount.
NOTE: If Gentex Mirror does
not fit button on your windshield, it is possible that one of our
adapter plates may, i.e. for some foreign manufactured vehicles.
It may also be possible that the mirror button will have to be
replaced with one that is compatible with the Gentex mirror, i.e.
Fords built prior to 1996. If you need information concerning one
of our Gentex adapter plates or a mirror button kit, please
contact your Gentex mirror retailer.
5.0 ROUTING OF THE GENTEX UNIVERSAL POWER
HARNESS
NOTE: Locate the Gentex power harness. It will have
a flat 7 or
10-pin connector which plugs into the mirror.
5.1 From the bottom of the driver's side dash, near
the post location, feed this
connector up along the side of
the dash to the opening at the "A"
pillar near the base of the
windshield. Pull the harness up far enough to
reach the mirror
location.
5.2 Plug in the harness connector to its mirror
counterpart. Route the harness
straight up to the
headliner.

5.3 Gently pull down the front edge of the headliner
and tuck the harness up
under the edge of the headliner.
5.4
Continue tucking the harness under the headliner along the top of
the
windshield working your way over to the driver's side "A"
pillar. Dress the
harness along the "A" pillar down to the dash
opening.
NOTE: It will probably be necessary to tape these
wires in place,
or wire tie them to the existing factory
harness.
Fig. 5.4
Wire Color |
Connection |
Black |
Ground Wire |
Red |
+12V supply switched by ignition |
Yellow |
+12V constant power (battery) |
Brown |
Connected to +12V dome light
circuit |
6.0 GROUND WIRE CONNECTION

6.1 Locate an existing bolt or screw that is in
contact with the vehicles metal
body in the area of the
driver's step well.
6.2 Route the mirror ground wire (black)
to the ground point.
6.3 Remove the bolt or screw from the
ground point and install the ring terminal over the ground
bolt/screw. Scrape off paint from mounting surface, if necessary,
to obtain a solid connection.
6.4 Reinstall and tighten the
fastener.
7.0 12-VOLT (POSITIVE) WIRE
CONNECTION
7.1 Route the 12-volt red wire to an ignition
controlled wire.
NOTE: If mirror remains on at all times, it could
eventually drain the car's battery.
7.2 Power source - Using a multi-meter, check for
wire exiting fuse block that tests positive for being controlled
by the ignition switch. The power must turn off when the ignition
is in the OFF position.
7.3 Using a butt connector, scotch
lock or t-tap connector, connect the red ignition wire at this
time.
**READ** - If you are installing a
50-9053781M, proceed to step 12.0. If you are
installing a
50-9050549001M or 50-9050620001M, continue with step
9.0.
9.0 ROUTING THE TEMPERATURE HARNESS
(inside the engine compartment)
9.1 Open the hood of the vehicle.
9.2 Locate the
temperature sensor portion of your harness. It is the section with
the green wires.
9.3 Locate a grommet in the firewall near the
interior harness location and remove it.
NOTE: If a grommet is not available, drill a 9/16"
hole in a safe and
convenient place to feed the 2-pin
connector through. Take
care not to cause damage to objects in
the passenger
compartment when drilling.
9.4 Locate the temperature probe harness and lay it
out with the 2-pin connector
toward the firewall. Pass this
connector through the hole or grommet access
to just inside
the passenger compartment.
NOTE: It is important that the 2-pin connector be
inside the vehicle to
prevent moisture from coming in contact
with it.
9.5 Route the rest of the harness towards the
front of the vehicle over the fender well to an area in front of
the radiator.
NOTE: The preferred location for the temperature
probe is in the center
of the grille or some place where it
will be in free air in front,
or to the side, of the radiator.
Down near the bumper may also
be used. Avoid locating it inside
or in front of the wheel well,
engine compartment, or too close
to the headlamps. Try to
keep the height no higher than the
center of radiator, and
no lower than 8" above the pavement.
Always try to keep the
temperature probe in the center of the
vehicle; never locate
it outside of the frame
rails.
Fig. 9.5
9.6 Locate the temperature sensor probe.
9.7 Plug
the probe on the connector making sure that the gray moisture
seal
seats inside the probe collar.
9.8 Clip on the
temperature sensor probe. Do not install it pointing toward
the
rear of the car or pointing downwards, as water may get
past the connector
seals. Pull the excess temperature sensor
harness back into the engine
compartment.
9.9 Use wire ties
to secure the temperature sensor harness.
NOTE: Take care to route away from the accelerator
and brake area
so that the harness does not in any way
interfere with their
operation.
9.10 Find the grommet that was removed in order to
feed the temperature
sensor harness through the firewall.
Using a knife, carefully slit the
grommet and slide the wires
into the grommet and reinstall the grommet
back to is original
position in the firewall.
9.11 If you have not already plugged
the temperature sensor harness into the
main power harness
mating plug, do so at this time.
**Read** - If you are installing a
50-9050549001M, proceed to step 12.0.
If you are installing a
50-9050620001M, continue with step 10.0
10.0 12-VOLT (POSITIVE) BATTERY WIRE
CONNECTION
10.1 Route the yellow wire labeled battery to a
constant power source.
10.2 Power source - Using a multi-meter,
check for a wire at the fuse block
that tests positive for +12
volts. The power must be present when the
ignition is in the
OFF position.
11.0 MAP LIGHT WIRE CONNECTION
11.1 There are two (2) types of dome light circuits
used in automobiles.
Type A. All General Motors, most Chrysler,
and some Ford import
vehicles use a circuit that puts a
constant +12 volts to the dome light.
When the door is opened,
the door jam switch provides a path to ground
and the light
comes on. In this case the wire at the switch will have +12 volts
when the door is closed and 0 volts when the door is open.
Type
B. Most full-size Ford and some Chrysler vehicles use a circuit
that has two wires at the door jam switch. When the door is
closed, there is +12 volts on one wire but not the other. When the
door is open, there is +12 volts on both wires.
11.2 Using a
multi-meter, check the power at the door switch wire(s) and
determine if the circuit is Type A or Type B. Contact your
local auto dealership or auto sound center to obtain detailed
information pertaining to your specific automobile
wiring.
11.3 Route the brown wire to a location so it can be
connected to the proper wire at the door switch. The wire at the
door switch must change from +12 volts to 0 volts or 0 volts to
+12 volts when the door is opened or closed!
11.4 Use a scotch
lock or t-tap to connect the brown wire or butt connector.
11.5
Test the map lights on the mirror and compare it with the
vehicle's dome light. Both the map lights and dome lights should
turn on and off together.
11.6 If the mirror map lights work
opposite of the dome light, open the black box connected to the
brown wire and change the position of the switch inside.
NOTE: If the map light on the Gentex mirror does not
turn off and you
have changed the position of the switch
(11.6), disconnect
brown wire and repeat step 11.2.
12.0 SECURING WIRE HARNESS
12.1 Now that all wires from temperature probe harness
and the main harness have been installed, they will need to be
secured with wire ties.
" Under hood - be sure to keep wires away from
moving parts such
as steering and brake mechanisms.
" Keep
away from extremely hot engine components.
" Interior - wire
tie all wires out of the way, making sure to avoid
steering and
brake components.
13.0 TESTING
13.1 Turn the ignition switch to ON.
13.2 With the
vehicle in a fairly well lit area, perform the
following:
" Push and hold temperature switch for 15 seconds
ON/OFF. Auto dimming is enabled when green LED is on.
" Cover
the forward-looking photocell located on the back side of the
mirror (a dark cloth or towel will work).
" After a few
seconds, the mirror will begin to darken (the time may vary with
ambient light levels).
" Remove the cover from the forward
photocell and the mirror will begin to clear.
" With car in
garage facing back wall, shift into reverse with foot on brake.
" Mirror testing is now complete.
14.0
14.1 You are now ready for final assembly of removed
components and calibration of your mirror. Operating instructions
for your mirror are located on a hang tag provided with your
mirror kit.
Complete Parts List Required for Installation
Part Number |
Description |
Quantity |
50-9053501M or 50-9050549001M or 50-9053781M
or 50-9050620001M
|
E.C. Electronic Rearview Mirror - Alternating
Display E.C. Comp Temp (Dual Display) E.C. Only
Mirror E.C. Comp/Temp and Map Lights
|
1 |
50-517GTEMP
50-9RT1H832 |
Temperature Sensor Harness (only on comp/temp mirrors)
Temperature Sensor (must be used with the
50-517GTEMP)
|
1
1 |
72-101 or 72-102 or 72-110 |
Hang Tag for Mirror Operations (Auto Dim) Hang Tag for
Mirror Operations (Auto Dim/Comp/Temp) Hang Tag for Mirror
Operations (Auto Dim/Comp/Temp/Map Lights)
|
1 |
50-517102G or 50-517198G |
Wire Harness (2-pc) With Mounting Hardware
|
1 |