Most new vehicles come with factory immobilizers, which prevent the vehicle from starting without the owner’s special key. Since there is no key present during remote start, these immobilizers need to be specially interfaced with a separate module. Please refer to your vehicle specific wiring diagram or your vehicle owners manual to determine whether or not your vehicle uses an immobilizer. For your convenience, Directed Electronics manufactures a variety of remote start interface modules which interface with the factory immobilizer only during remote start, leaving it fully functional at all other times. These bypass modules are usually available at the same location you purchased your remote starter from. You can view all applicable modules for your car by visiting www.xpresskit.com
The BRAIN MODULE or CPU is typically mounted under the drivers' side of the dash. Use zip ties to attach the module. A large wire harness is a good place to start. You may also find small cavities where the brain may fit and can attach the module there. Be careful not to mount the brain on or next to any moving parts such as a steering column. Do not screw the module directly to metal! This will help insure maximum range.
Many Directed Do It Yourself Keyless Entry systems feature built-in Relays that will interface with the power door lock systems on most vehicles. On select DIY products you may have to use external relays, as in the case of reverse polarity door lock systems. Please refer to your manual to determine if your module requires external relays for your specific locking system. If you find that you need to purchase external relays for this, or for any other part of the install, you will need to locate a standard 12 volt, 30 amp relay with 5 terminals. These can be found at most automotive parts stores or in our online store at Directedstore.com
Although there are literally thousands of different model year vehicles on the road at any one time, there are eight basic types of door lock systems. The 4 most common door lock systems are positive trigger (common on GM vehicles), negative trigger (common on Fords and Asian vehicles), reverse polarity (common on older GM and Chrysler vehicles), and multiplex (common on late model Chrysler vehicles). Please refer to your vehicle specific wiring diagram to determine which door locking system your vehicle uses.
Directed remote start systems with the optional security capability require interfacing with the door trigger circuit in your car. You can find the location and color of this wire on your vehicle-specific wiring diagram available on our website. This wire changes state when any of the vehicle’s doors are open, causing the security system to sound an alert via the horn or the optional siren mounted in the engine compartment.
PARKING LIGHT TESTING
There are 3 different types of parking light circuits, Positive, Negative and Multiplex. To test for a negative parking light circuit you will need to connect the red lead of your LED Circuit Tester or digital volt meter to a constant 12 volt source. Probe the suspected negative wire with your black lead. When the parking lights are turned on the green LED in your circuit tester should light. When the parking lights are turned off the green LED should turn off. When testing for a positive circuit, you will need to connect the black lead of your LED Circuit Tester or digital volt meter to good chassis ground. Probe the suspected positive parking light wire with your red lead. When the parking lights are turned on the red LED in your circuit tester should light. When the parking lights are turned off the red LED should turn off. Keep in mind, there are more complex parking light circuits such as multiplex lighting systems found on newer model Chrysler vehicles. Check your vehicle specific wiring information to determine which setup you have.
Some Directed systems come with an auxiliary output, which is an output typically used to interface with a power trunk release. Besides trunk releases, many minivans have electronic activated door sliders which can be integrated with a simple negative trigger. These outputs are generally negative at the brain and may require a relay to function properly depending on the polarity of the trunk release or power slider circuit in your vehicle.
There are three primary types of engine monitoring with regard to remote start: Voltage Sense, Virtual Tach, and Tach mode. Tach is a backup monitoring method generally used when the voltage method proves to be insufficient enough to successfully remote start the vehicle. This is an input wire, and needs to see a strong source of A/C current to properly monitor the RPM of the engine. Directed recommends using a fuel injector wire or ignition coil to make this connection. You may also use the wire listed on your vehicle specific wiring diagram. Be sure to properly test this wire and confirm that it shows between .5v to 6v A/C current, fluctuating with the RPM.
TESTING THE FEATURES
Now that you’ve followed all the detailed instructions in your install guide and installed your new Directed system, let’s TEST some typical features:
- Keyless Entry System
Pressing the lock button with keyless entry functionality locks your doors.
Pressing the unlock button will unlock your doors.
You will also notice Light Flash Confirmation: one flash for lock – two flashes for unlock.
- Remote Start System
For remote start, press the start button.
Now let’s test some of the safety shutdowns.
Brake Shutdown: With the vehicle in Park, activate the remote start system. Once the engine is running, press the brake pedal. The engine should shut down immediately. If the engine continues to run, check the brake circuit connection.
Hood Pin Shutdown: With the vehicle in Park, open the hood. Activate the remote start system. The vehicle should not start. If the starter engages, check your hood pin and connections.
If the starter does not engage, your safety check is complete!
For Valet Takeover, press the start button when the vehicle is running, then remove the key. When returning to the vehicle, insert the key, turn to ON and press the brake to exit remote start mode.
HELPFUL INSTALLATION LINKS
The below links are provided for professional mobile electronics installers and are for convenience only. Directed Electronics does not assume any responsibility or liability for any information, content, communications or materials available on such third-party sites.