Anyone know where to get a wiring diagram for the PCM for a 04 silverado SS ??

 

What do u need to no? I have ALLDATA PRO, just let me no what u need and I can get it for u. Be specific on the things u want.

 

Thanks for the reply.. I specifically need to know where the 4 wires that go from the driver side front 02 sensor (B1S1 in hptuners) wind through to the PCM, and which wires they are at the PCM. I am not even sure it is a straight shot ?? I think I have a bad signal wire ??

Do you know which wire is the signal wire and what voltage it should read with key in run position ??

I am thinking I should just run 4 new wires past where the damage is most likely, and bypass the problem for now to see if it will work. I will PM you also.

 

Ok b- wire(puple/wht pin 69 c1 at pcm) to o2 staight shot with .5 vlts. high signal. A- wire(tan pin 29 c1 at pcm) to 02 sensor straight shot with .5 vlts. low signal. E-wire(blk/wht wire pin 72 c2 at pcm) to o2 sensor straight shot with .5 vlts heater low control. D-wire(pink wire goes to fuse block underhood to o2a fuse 15amp shares with pink wire for Bank 2 sensor 1 also. Hope this helps.

 

This will defintely give me somewhere to start, thanks a lot for the help

 

hey.can you get the wiring diagram from 2005 avalanche 1500? 831deals@gmail.com
I just staring to swap the 5.3 with 4l60 I have everything with me to do the swap but still need the wiring diagram to doit. thanks

 

This thread is from 2007...