The Rattler Do-It-Yourself system comes with a dual-relay pack included for door lock operation. To interface this piece with the system it is necessary to cut the three-pin plug off the relay module leaving the three wires long enough to connect to the system module.
Once you have cut the plug, strip a 3/4-inch section of insulation off the ends of the RED, GREEN, and BLUE wires. Solder the LIGHT BLUE wire of the relay module to the LIGHT BLUE wire of the eight-pin main haness, and solder the LIGHT GREEN wire of the relay module to the LIGHT GREEN wire of the eight-pin main harness.
Cover the two connections with electrical tape. The remaining RED wire of the relay pack will be soldered to the RED wire of the main eight-pin harness for a 12V supply. For additional information regarding the wiring of the dual-relay module contact Rattler Technical Support.
step 7
Engine monitoring
During remote start the system will need to know what the engine is doing and how fast it is idling in order to determine if the car is running. The module does this by monitoring the voltage of the vehicle’s electrical system. When the vehicle is not running the electrical system should read approximately 12 volts and will increase up to 14.40 volts when running. The remote start system monitors the increase to prevent the starter from cranking when the vehicle is already running.
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