DMTL ground issue

[Zaniei3]

Just purchased a 2013 z4 28i and EVAP test never got completed and I had a p149d fault code. Changed the gas cap and bought a new EVAP vent solenoid next to the canister close to gas tank. After that I got a p1447 fault code indicating a high voltage draw at the solenoid.
so I checked the voltage going to valve with engine off ignition on at 9.98v and ground showing resistance of 50. With engine on the voltage at 13.8 but ground showing open.
I read the ground is commanded from ECU in some cases but how about here?

also, is the a ground cluster to the chassis which includes the DMTL ground brown wire I can clean?

thanks for all your help.

 

[Zaniei3]

I found a melted brake light socket in the right side and it looks like it shares the same ground connection as DMTL. G301 does anyone know where I can find this cluster?? Thanks

 

[Zaniei3]

No response!

 

[Althulas]

Google AI gave this response
2

The DMTL (Diagnostic Manager Telemetry Light) reference is likely a misunderstanding, as it is not a component related to a BMW Z3 brake light circuit; the issue is likely a bad ground connection for the third brake light, identified by the G301 code, which is a common problem. To fix it, first, locate the shared ground connection for the rear brake lights, then check the wire for the third brake light, as corrosion or damage to the ground wire is a frequent cause of this issue.

Have you looked at the wiring diagram’s in the resource section?