[Sub95]

Wanting to know what pin 20 on the C2 connector powers In the ecm?
pin 20 Is a b+ into the ecm.

Why I ask Is this pin corroded and broke off In the connector. truck still ran fine. I did drill a hole threw the ecm connector and soldered a wire back on to the broken Pin and tied It back Into the harness. I haven't noticed any changes.

05 Diesel, 4x4, auto.

Thanks

 

[PWong]

ECM C2-20,30,40 (FUSED B+) all share the same battery power circuit A209, from IPM.
Similarly ECM C2-21,49,50 (GROUND) all share the same grounding circuit Z902.
There are three pins to feed power to ECM and three pins to ground the ECM.
So missing any one is not an issue.

 

[Sub95]

That's what I needed to know.

Thank you PWpong.

 

[PWong]

It's one gauge #10 wire then splits to three gauge #16 wires to C2-20,30,40 .
Each one would share 1/3 of the load current to ECM.
If one is missing then the other two would share 1/2 of the load current.(which is not preferable).

 

[Sub95]

It's one gauge #10 wire then splits to three gauge #16 wires to C2-20,30,40 .
Each one would share 1/3 of the load current to ECM.
If one is missing then the other two would share 1/2 of the load current.(which is not preferable).

I was able to solder a wire to what was left of the pin 20 and tie It back into the harness.

Good to know what It does.

Thank you.