Medium and Heavy Trucks
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the thing is when i use the battery post as my ground i have 12 volts at that 2 pin connector, but if i stick a paper clip in the green wire on the 2 pin connector and use that as my ground and stick my other lead into the red wire on that connector i only get 3-7volts. It should be reading 12, and I do not know why it is not. I'm stumped on this, it's not getting enough voltage to close to solenoid. I use the cat scan tool to manually turn on the intake heater. I only have 12 volts at the hot wire coming from the starter on the solenoid, not the other side where it goes to the heater itself.
I ohmed out both wires when I disconnected the pcm and they only have 1-3 ohms through the power and ground wires, and they both have continuity when i plug the from the pcm to the connector itself.