Hello,
Yesterday I got up to find the vehicle would attempt to charge, then stop with an ID 981 "State Transition Fault" after about 5 seconds. Then about 10 seconds later, it would try again.
The charge screen would show something ridiculously small, like 37 volts, on the HPC. Long before it showed any current trying to charge.
I also tried the 110 V plug, it don't do anything. The ring won't even change to blue when I plug it in.
When I unplug it, close the door and turn the car on, it follows with a ID 1138, "Voltage on charge port line 2 during drive".
At that stage, if I press Drive, it also gives me an error ID 971 "Phase B desat fault". (what is "desat"?)
So...
I assume charge port line 2 is the same as Phase B. I guess line2/phase B is also the single phase used for the 110V, which is why it won't even give me a blue ring.
About 10 months ago, Gruber Motors did a rebuild of the PEM. New IGBJT insulators, new capacitors, new connector blocks, etc... It was working fine up to this point.
I've got the cover off the PEM, and verified that what Gruber said they rebuild was actually done. I was thinking of examining the contactors so see if something failed, or backtracking to the driver circuits that open/close them. But if anyone has any recomendations before doing that, I'd appreciate any advice.
(I'm an EE, and last year I had a precharge failure, so I took them PEM apart and tested the precharge circuit transistor IRF540 thinking it might be the cause... It wasn't so I sent the car to Gruber for the overhaul)
The car is now just parked and the system inhibited.
Any advice would be appreciated.
-Scott
Yesterday I got up to find the vehicle would attempt to charge, then stop with an ID 981 "State Transition Fault" after about 5 seconds. Then about 10 seconds later, it would try again.
The charge screen would show something ridiculously small, like 37 volts, on the HPC. Long before it showed any current trying to charge.
I also tried the 110 V plug, it don't do anything. The ring won't even change to blue when I plug it in.
When I unplug it, close the door and turn the car on, it follows with a ID 1138, "Voltage on charge port line 2 during drive".
At that stage, if I press Drive, it also gives me an error ID 971 "Phase B desat fault". (what is "desat"?)
So...
I assume charge port line 2 is the same as Phase B. I guess line2/phase B is also the single phase used for the 110V, which is why it won't even give me a blue ring.
About 10 months ago, Gruber Motors did a rebuild of the PEM. New IGBJT insulators, new capacitors, new connector blocks, etc... It was working fine up to this point.
I've got the cover off the PEM, and verified that what Gruber said they rebuild was actually done. I was thinking of examining the contactors so see if something failed, or backtracking to the driver circuits that open/close them. But if anyone has any recomendations before doing that, I'd appreciate any advice.
(I'm an EE, and last year I had a precharge failure, so I took them PEM apart and tested the precharge circuit transistor IRF540 thinking it might be the cause... It wasn't so I sent the car to Gruber for the overhaul)
The car is now just parked and the system inhibited.
Any advice would be appreciated.
-Scott