PCS Failure - Can’t charge at all

[Cybermo]

what is your vin number range?

074

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[roadrunner32]

Thanks Mo, for the heads up, I'm 071,xxx.

 

[JackCypher]

Holy crap! As a mechanic, I stopped reading at step 48! I give up.

Yeah, the PSC replacement procedure is quite involved and includes various disciplines. I love the 'Check the high voltage gloves' step.

Jack

 

[Hamchuck]

Update on my situation. Dropped off truck on 4/6. Awaiting parts until 4/18. Now “preparing”. I guess they got the PCS parts in. Supposed completion date now 4/24. Drove by the service center yesterday evening. Truck in parking lot with about 12 other trucks. At least it isn’t lonely.

I got the truck back on Thursday 4/23. 18 days after I dropped it off at the service center. But that’s not the last of this sad saga. The next morning after running an errand and then coming home and plugging the truck in there was a strange grinding noise coming from behind the charge port. I stop the charging and unplug the truck. The port door won’t close. I go into the truck and the alerts start flying. HV battery fault. LV battery fault. Drivetrain Failure. Rear steer disabled, etc. Well crap. I try a power off reset. Same alerts. Soft reset. Same. I end up having to call roadside and they send a tow truck to pull my truck out of the garage. I back into my garage so getting it out was the easy part. Small favors. By the time the truck got to the service center it was right before closing time. Next day I get a ride out there for a loaner. Only available car is a standard rear drive model Y. Truck is supposed to be done by this Friday. I hope so. I also hope whatever happened didn’t brick the truck.

 

[Hamchuck]

I got the truck back on Thursday 4/23. 18 days after I dropped it off at the service center. But that’s not the last of this sad saga. The next morning after running an errand and then coming home and plugging the truck in there was a strange grinding noise coming from behind the charge port. I stop the charging and unplug the truck. The port door won’t close. I go into the truck and the alerts start flying. HV battery fault. LV battery fault. Drivetrain Failure. Rear steer disabled, etc. Well crap. I try a power off reset. Same alerts. Soft reset. Same. I end up having to call roadside and they send a tow truck to pull my truck out of the garage. I back into my garage so getting it out was the easy part. Small favors. By the time the truck got to the service center it was right before closing time. Next day I get a ride out there for a loaner. Only available car is a standard rear drive model Y. Truck is supposed to be done by this Friday. I hope so. I also hope whatever happened didn’t brick the truck.

Update two: Tesla diagnosed the new issue to be a communication problem within the HV system. They decided it needed a new backbone harness and device cluster assembly which is being installed today. Assuming everything goes as planned they are supposed to be done by the end of the day. I wondered if incorrectly installing the new PCS would result in problems with the harness and cluster assembly so I posed the question to Grok. Apparently if the technician isn’t careful they can damage those components during PCS removal and install. I don’t know. I hope this repair fixes things and this is the last of it.

 

[mongo]

Update two: Tesla diagnosed the new issue to be a communication problem within the HV system. They decided it needed a new backbone harness and device cluster assembly which is being installed today. Assuming everything goes as planned they are supposed to be done by the end of the day. I wondered if incorrectly installing the new PCS would result in problems with the harness and cluster assembly so I posed the question to Grok. Apparently if the technician isn’t careful they can damage those components during PCS removal and install. I don’t know. I hope this repair fixes things and this is the last of it.

The backbone harness is fully inside the cabin. The DCA is basically everything in the bay that isn't the PCS or AC junction block.

 

[seussiii]

The backbone harness is fully inside the cabin. The DCA is basically everything in the bay that isn't the PCS or AC junction block.

 

[mongo]

The ancillary bay, not the garage bay

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