The Hood Safety Switch must be installed and the Blue
wire must be connected. This prevents operation of the unit if the hood is open. The Blue
wire’s second function is being a sensing wire to trigger the alarm, if the MARS is armed.
Carefully install the included pin switch so that it is open (pin down) when the hood is shut
and closed (pin up) when the hood is open. Connect the Blue wire to the pin switch and
carefully route this wire through the firewall, using an added or existing grommet, avoiding
any hot or moving parts. Instead of using a pin switch to monitor the hood's open or shut
status, an Omega AU-46 Mercury Tilt Switch may used. Connect one of the AU-46's wires
to Negative Chassis Ground and connect the remaining wire to the Blue wire.
20-Gauge Blue Wire:
( - ) Hood Input
Connection Required-
20-Gauge Red/Black Wire:
( + ) Brake Input
Connection Required-
The Red/Black wire must be connected. It is part a critical
safety feature which disables the unit whenever the brake pedal is pressed. Connect the
Red/Black wire to the brake switch wire which shows +12 Volts when the brake pedal is
pressed. The brake switch is typically located above the brake pedal, and usually mounted
to the brake pedal support bracket. Make this connection securely for long-term reliability,
and thoroughly test the operation of this circuit.
18-Gauge Black Wire:
System Ground
Connection Required.
Connect the Black wire to a very good, clean chassis
ground. A recommended connection is to an existing machine-thread bolt, either in the
driver's kick panel, steering column area or a major structural member behind the dash.
Small dash braces are not adequate, and the area must be clean, bright metal.
20
3) Select the feature to be changed by pressing the Valet Switch the same number of times
as the feature number (
example: feature
#
3 = 3 presses
).
The Status Light will flash the same number as the Valet Switch presses just
entered. The parking lights will flash off the same number, then come back on.
Count the number of flashes to confirm that the desired feature has been
chosen (if needed, reenter the Valet Switch presses).
How to program features:
1) Turn the ignition key “On”, then “Off”.
2) Within 7 seconds press the Valet Switch 5 times.
The Status Light will flash twice, then turn off .
The parking lights flash twice, and then stays on while in programming mode.
4) Once the feature has been confirmed, press the brake pedal 1 time for the first, default
setting, choice; or press the brake pedal 2, 3 or 4 times to select the second, third or
fourth settings (
feature #3 only has two settings; see chart on previous page
).
The Status Light will flash on the same number of brake presses, and the parking
lights will flash off the same number. Once these flashes occur, the feature is set.
• More features to program? Go to step 5.
• Only needed to program the one feature? Allow MARS to exit Programming Mode.
5) Select another feature by again making a new entry of Valet Switch presses
(repeating step 3) and again setting the newly chosen feature with the transmitter (as in
step 4).
9
