hi,

i've had this problem since i bought it and did a lot of things already. finally today, with my friends, i had the time to look for the electrical problem coz i occasionally use this. saw the "P1875 explained" post and most of my searching said to look for the circuit from the pcm to the tccm which is a gray wire with black stripe on a 4pin black connector. however, i couldn't find the wire, it's either black or gray only without stripes and they all go down to the underside not the pcm. correct me if im wrong but is the tccm located at the back of the driver side air vent near the door? i hope somebody could post pictures where these are located so it could be a lot easier.

thank you very much.

2000 silverado auto transmission 4.8l with 4 button 4x4 switch

 

Considering that your truck is neither a s-series blazer or a fullsize blazer and that the trouble code sheet applies to the s-series vehicles, I would not expect the wiring to be identical.

 

thank you for the fast reply sir. any ideas on how i could have this done. it was your sticky that i read and was full of important info.