Transfer case wiring
 

So I just got done with my manual swap on my 2000 blazer 4x4 and I need help with the little wiring the is. Any advice would help. thank you

Is it a 231?

I have no clue

For future reference there is a round tag on the rear of the transfer case, it's usually red and white. There should be a number on it, like 233c, 231c, etc.. Yours should be a 231c. Sometimes they will also read a number followed by a suffix, HD. This denotes a Heavy Duty unit. I'm assiming that yours is a 231c. I'll try to get you the wiring schematic for the swap. Hang tight.

Thank you for your help

Ok, since you have a 2000 this is what you should need. This is the circuit description. The 4wd low circuit consists of the Vehicle Control Module (VCM), a Transfer Case Control Module (TCCM) and circuit wiring. The TCCM controls the 4wd low signal on circuit 1694. When you select 4wd LOW, the TCCM grounds circuit 1694. When this happens the 4wd LOW signal voltage on the circuit changes to zero volts, because the ciruit is grounded. The VCM then compensates for transfer case gear reduction in the transmission output shaft speed (OSS) signal . The VCM uses the transmission OSS signal to adjust the shift points, line pressure and torque converter clutch scheduling. Now what you actually have to do is locate the TCCM, which I believe is behind the kick panel on the passenger side. There should be a gray wire with a black stripe. If you insert a momentary switch somewhere in the wire at this point it should allow you to switch to LOW and it's associated changes mentioned earlier in the circuit description. To get out you should only have to shift out of LOW. I know it's not very clear but if you get a schematic and look it over you'll see what and where I'm talking about. Maybe this helps you a little.

Yes a little bit