Originally Posted by
onehundred80
I have checked the ground as you said and got .75 Ohm..
Connector pin 8 to ground = 8.5 Volts, but at the BCM it measures 12 volts. This means different voltages at the two ends of the same wire.
Voltages at pin 78 are the 12 volts when opening and losing with the fob. But nothing happens when using the switch.
I am truly confused.
Thanks for the help.
Pin 78 Do you mean pin 8?
From what I am reading,
you have 12 volts at the BCM pin 49 and 8.5 volts at the switch pin 8.
Do I have that right?
I'd bet if you press "UNLOCK" that the voltage at pin 8 will go to Zero like is should, and at pin 49 it won't drop, it will stay at 12.
This would indicate the wire itself is partly open, that is, resistive. This would lead me to question the crimp on the wire BCM pin 49 or the crimp on the wire at pin 8 of the switch.