L5p ecm pinout.

[seansybar007]

Hi, first post. I've got an l5p dirtymax in the shop for no crank/ no start, no ecm communication. if I ground relay 70 (ecm) it turns on the ecm and I can talk to it. I was able to find the pin out for the x1(middle) connector. and confirmed all the correct values. I need the pinout schematics for the front (blue) and rear (most pins) connector to confirm/deny the ecm is getting all the correct signals.

Sent from my SM-S916U using Tapatalk

 

[Ron Nielson]

GM UPFITTER .com Boby Builder section has ECM prints, maybe not your year

 

[Jakezed22]

Hi, first post. I've got an l5p dirtymax in the shop for no crank/ no start, no ecm communication. if I ground relay 70 (ecm) it turns on the ecm and I can talk to it. I was able to find the pin out for the x1(middle) connector. and confirmed all the correct values. I need the pinout schematics for the front (blue) and rear (most pins) connector to confirm/deny the ecm is getting all the correct signals.

Sent from my SM-S916U using Tapatalk

Not free, but ALLDATA will let you buy one month of a vehicle for around 20bucks. Then I just print all the wiring diagrams off.