HELP QUICK! SS2000SS install...
- Thread starter GranPrix
- Start date
Technically the neg post on the battery.. IIRC, I just grounded it as well..
http://www.fedsig.com/products/docs/install/2561644.pdf
http://www.fedsig.com/products/docs/install/2561644.pdf
I dunno, I just followed the install instructions.. (and substituted the neg post to a darn good ground)
May help as well.. http://www.fedsig.com/products/installation.php?id=112
May help as well.. http://www.fedsig.com/products/installation.php?id=112
It goes to the front fender fusible link from battery. Follow your battery's negative cable to the front fender and attach the black wire (PIN 4) to the screw on the fender. Here is a link to FedSig's install manual
Taking a shortcut on this ground wire might sound like the easy answer, but I have seen two different smart sirens melt down from poor grounds and poor supply voltage to the red wire that goes to the harness. A vehicle chassis ground is a "floating" ground. The ground on the battery is a true ground. Part of the microprocessor in the smart siren is measuring the differences between these two. I don't remember why it is done that way by Federal any more, but I know that is what is going on. That is why it is important to do it correctly. Also, make sure that your red supply wire to the harness is capable of drawing 20 amps and ALWAYS a minimum of 12 volts. If it drops below this, you can fry a microprocessor or one (or both) of the transistors on the back of the box. (those two black covers on the unit). That red wire controls the keypad AND the siren! That is where the siren gets its juice, not from the main supply line into the box! Keep in mind that it may not fail right away if not wired correctly, but over time improper wiring will take its toll on these systems. Hope this helps.
You must have been supplied a wire harness for the Vision system where the green wire is present. On the Smart Siren, there's no green wire in use. Just cut off that wire and proceed as normal.
Silent But Deadly, it is not true that the vehicle chassis is a "floating" ground. The reason for the two ground connections is due to the separate microprocessors in the system, one for the lightbar and one for the siren that needs to "see" each other. The black wire from the harness needs to be the same ground as the lightbar ground so there's a common reference point. If the ground is separate from each other at a distance, there will be a floating ground condition where the voltage difference between the two ground points exists and the two processors no longer have a reference point to work with. That's why the Vision system balks when that condition exists, thereby the need to adhere to the instructions.
Silent But Deadly, it is not true that the vehicle chassis is a "floating" ground. The reason for the two ground connections is due to the separate microprocessors in the system, one for the lightbar and one for the siren that needs to "see" each other. The black wire from the harness needs to be the same ground as the lightbar ground so there's a common reference point. If the ground is separate from each other at a distance, there will be a floating ground condition where the voltage difference between the two ground points exists and the two processors no longer have a reference point to work with. That's why the Vision system balks when that condition exists, thereby the need to adhere to the instructions.
