Factory Alarm Disable, 2000 Tahoe

hi! there is a way   to cancel  the immobiliser   system     you will need to cut  the  yellow  wire  from the key cylinder   and   to find out the resistor value

there is tree wires going to the key cylinder  one white 

                                                                           one black or ORANGE / black     

                                                                           one yellow

you will need a ohmmeter to mesure the resistance between the blk and yel  from the key side   black lead from the meter to blk wire  and red lead to yel from key side that will give you a value when key is turn on ( ex. 4.3k ) turn key off  and reverse the lead from the meter  the red lead to the blk wire and the black lead to the yel from the key side      turn key on and check the value again  (ex.2.65k )  now add the two value and divide by two  this will give you the value of the resistance of the passlock system    Now  you need to attach  this resistor  value  between the black (ORANGE / blk) and the yellow wire of the passlock  but leave the wire cut  and attach to the one opposite to the key cylinder.    good luck