Quote:
Originally Posted by Lil bastard
The 'chip' is technically a transponder coil, more specifically a magnetic-coupled transponder coil, basically meaning that is has a non-volatile memory and does not need it's own electrical energy to operate. Since it has no power of it's own, it's range is very limited - usually 0.3"- 6.0".
When the actual key is inserted into the ignition lock and turned to position '1' or '2', an induction coil that is mounted around the ignition lock is energized and sends out an electromagnetic field of energy. The windings in the transponder chip absorb that energy and power the electronic chip to emit a signal.
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Can somebody tell me how this "energizing" is done ... i.e. is 12v + on ACC supplied to the immobilizer transponder coil wire or is it a negative trigger? Am I correct this is the wires that attach to the immobilizer coil on the ignition? Thanks