E350Cdi 2012 - ECM showing low voltage despite charged battery

[MrGundam]

Thought I would start a separate thread for this.

Basically in Xentry the ECM is showing only 6v despite the main battery being 12v:

I am trying to find the ECM pin diagram in WIS so I can test the voltage it is receiving but struggling to locate it.

Does anyone have any pointers in how to find it?

And any tips on how best to go about tracing this issue?

Thanks

 

[mioba]

Surely it will be in WIS

 

[alexanderfoti]

Xentry often gives odd voltages sometimes, I would highly advise leaving alone, unless you are trying to fix a specific problem!

Additionally, that screen is expecting the engine to be RUNNING, so any values displayed here with it off, will be wrong.