Look for the BROWN/WHITE where it enters the connector.
Here's a 56-way C1 pinout:

 

thank you I found it I checked the circle and the multimeter beeping so no shortage to the pcm

so so far 11.92V on E
no shortage to the pcm

now gonna check the square wave signals

 

for the wave signals, when the engine is off I am getting signals , as soon I turn the ignition on or start the engine , I get no signals . Am I doing something wrong ? I backprobe and ground it to another ground

 

Dont check continuity with power on the circuit you may blow a fuse. Set meter to 20v and watch the volts fluctuate.

 

Oh okay they said that’s the wave option but I’ll put it at 20v and check later cus I left the house to work . Whats weird is when it thro the code , it still drives fine, if I clear it it goes away for like days then it come back it doesn’t come back instantly so it’s really been driving me crazy

I’ll check that later today or tomorrow and update I really can’t thank you enough for helping me with this hummerz

 

Intermittent signal loss most often occurs at the connector contacts. Make sure to clean them.

 

I have that exact spray cleaner I sprayed the harness pins and I’ll spray it good again when I check again for that wave. What does this electric grease do? Do you just pour it into the pin holes ?

 

Repels moisture and protects electrical components against corrosion. Don't pour, spread:

 

Nice did that girl needed safety glasses to spread some grease ? Lol
ill check today after work for that 20v

 

I checked I backprobed it and ground it and put it at 20v and started the engine it reading fluctuating 5.52v