Roadster Fault ID 56 - Communication Problem Power Reduced

[KeithBoxer]

Has anyone had the Roadster Fault ID 56 - Communication Problem Power Reduced ?
I have this message on #0344 and cannot put the car in gear. I also get the Fault ID: 3004- Warning: Gear Selection Problem. The car won't move, even in Tow Mode so I assume that the parking lock is on. I guess its possible that

the faults may be connected.

Anyone experienced this or have any suggestions how to release the parking pawl? Or any other suggestions welcome !

 

[jason.tv]

saw from another post; do you have ovms installed? Perhaps unplug it if you do. Some communication issue is happening somewhere or a wire is loose or not connected which other post pointed to unplugging the ovms.

Communication error

I'm not a expert but any type of solution could help; have you tried rebooting the system or vms? Crap I see you can't even get to your diagnostic menu because it's asking for a password?

Grubermotors.com can help diagnose those error codes, call and ask for Peter for the Roadster.

 

[KeithBoxer]

Thanks Jason. I do not have OVMS. I have tried to reboot the VMS by disconnecting the black and blue connectors as suggested in other posts, but that does not seem to work. I'll try Peter Gruber as you suggest, thanks for the suggestion.

 

[X.l.r.8]

 

[KeithBoxer]

Thanks. I have checked the the APS connector is in place. it seems fine.

I was going to try and pull it off and re-fit it, but it seems that the 12v system should be disabled via the diagnostics menu before doing that.
But I don't have the access code to that menu. Does anyone know if its OK to to disconnect the APS input connector to the PEM without first disabling the 12v system?

 

[KJA2001]

You have a PM

 

[backmost]

I have this same issue with #209, PEM fan really loud. Car won't charge, should I do a reboot? I have a 1.5

 

[jason.tv]

I have this same issue with #209, PEM fan really loud. Car won't charge, should I do a reboot? I have a 1.5

Try anything in order to get the charging working; could be your 400v controller which would require Tesla Service center now; if you can't figure it out I would inhibit the car until you figure out the next step to prevent phantom drain as the pem fan and coolant pump are running 24/7

Call Grubermotors and see what they say to possibly diagnose you further.

 

[backmost]

I tried inhibiting the APS from the service menu and restarting but still get the communication error 56

 

[backmost]

Tried pulling the black and blue connectors on the VMS and did a hard reset but now I get a Powertrain Service Required error ugh