Model IMO-720
Installation Manual
IMO-720 Two Circuit Immobilizer System
Kit Contents:
Control Module
5 Pin Main Control Module Wiring Harness
4 Pin High Current Inhibit Circuit Wiring Harness
Valet/Override Switch/LED Combination Assembly
2 Pin Exciter Coil
Consumer Transponder/Information Kit
Operation:
The IMO-720 Immobilizer is a passive arming security system. When the ignition switch is turned off, the LED
begins to flash rapidly, indicating that the circuit will arm in 15 seconds.
After the 15 second arming period, the LED will begin it’s slow flash pattern, indicating that the circuit is armed.
NOTE:
The arming cycle can be suspended anytime during the initial 15 seconds by turning the ignition switch
to the on position.
Once the circuit has armed, the vehicle will not start unless a programmed transponder is used or, the manual
override sequence is operated.
When the vehicle door is opened, or when the ignition switch is turned to the on position, the exciter coil is
energized and capable of reading a programmed transponder.
When a transponder is placed within the exciter coil’s field, (Appx. 6”), the unit disarms. This is indicated by the
LED turning off.
Because the programmed transponder is attached the vehicle’s key ring, the operation of this unit is transparent
to the user. Arming and Disarming takes place automatically.
Control Module Mounting:
Select an inconspicuous mounting location below the driver’s side dashboard that is within 30 inches of the
ignition key cylinder. Be certain your chosen location is away from the vehicle’s steering shaft, (column), to
prevent interference with the proper operation and control of the vehicle. Secure the module to a existing brace or,
wiring harness using cable ties.
Mounting The Valet/Override Switch/LED Assembly:
Select a mounting location within the drivers area that is accessible to the operator of the vehicle and
clearly visible from the outside of the vehicle’s front left and right windows. This switch does not have to be
hidden as the system cannot be disarmed unless the pre-programmed transponder is used or the custom
override code sequence is operated.
Mounting The Exciter Coil:
The loop exciter/antenna coil is designed to be placed around the vehicle’s ignition key cylinder. In certain
vehicles it will be necessary to remove the shroud surrounding the steering column, in other vehicles it may be
necessary to remove the cylinder from the dash panel. The information below references both these applications.
Vehicles with steering column ignition cylinders:
Remove the upper and lower half of the steering column shroud to gain access to the ignition key cylinder. Place
the loop coil around the ignition cylinder. Route the twisted pair of Black and Black w/White stripe wires toward
the control module.
Replace the upper and lower halves of the steering column shroud using care not to pinch the wire’s of the routed
exciter coil harness.
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