2000 Chevy Blazer passlock

Hi Wafer64. Welcome to the forum. These systems are real effective at keeping owners from driving their trucks. Not sure where you're measuring, but a common problem with Pass Lock sensors is broken wires in the steering column, especially if you move the tilt wheel a lot. If your system still uses the pellet in the key, a poor man's fix is to measure the pellet's resistance, then cut the wires at the base of the steering column and solder in a resistor of the same value.

Caradiodoc

I've read many times about defective Pass Lock sensors. As I recall, the pellets in the keys are on older vehicles. Still, broken wires are very common in the steering column. I'm going to have to research the testing procedure because there should be a way to do it from the connector at the base of the steering column instead of taking the upper column apart.

It will take me a while to put my hands on a service manual. Jack me up with a followup message if I don't get back to you. In the meantime, if you have tilt-wheel, move the wheel to a different position and try to start the engine. If that works, it will pretty conclusive there are broken wires.

Caradiodoc