Hi Gary, that's very interesting. If it could lead to an unpatchable way of rooting a MCU2 it would be huge!
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Hi Gary, that's very interesting. If it could lead to an unpatchable way of rooting a MCU2 it would be huge!
I'm working on a car that had front impact damage that pierced the radiator. Random technician thought it would be a good idea to put in hardening liquid goo to stop the leaks from happening. It did stop the leaks but disabled the front motor. (P85D) So after I checked the coolant tubes going into the front drive unit's (DIS) top side I noticed the goo. I tried to flush it out cycling a dissolving chemical, it did clear those tubes and after purging I noticed the coolant being distributed everywhere this time. However the issue was still there. It starts out without errors and the first instance traction logic wants to use the front motor it goes into limp mode.
Thinking it could be an internal sensor I decided to lower the front drive unit and disassemble it. As you can see in the pictures, temp sensor on the coolant lines were actually covered with it. So I cleaned that too and put the motor back together. However this time the motor goes into limp mode as soon as drive rails are turned on. Reason is a phase current offset on phase B. Yet I don't know what that means. Here are the errors. PMS (whichever ECU that is) gives out the self test error also on PMS_state. Anyone with experience know what these are about? A couple people said it could be about the inverter itself but what could be broken when just opening it up and putting it back together? If anything that should be fixable too. So I'm open to suggestions and need help. Thank you in advance.
That's a Copart car...
Any time you deviate from the strict liquids guidelines you are making a mistake. This was a stupid shortcut and the guy who advised this either knows dangerously nothing, or must have been trying to sabotage you.
What happens is the pack power goes to the inverter, which converts it to three-phase AC voltage (A, B, C), which in turn drives the motor with phase and amplitude modulation to handle varying conditions. It sounds to me, but don't quote me on this because I am going out on a limb which no one else will dare, that goo got into a portion of the inverter and gave it the equivalent of a coronary. The coolant port for phase B might be blocked and it's overheating.
If it were me I would at least take the motor and inverter completely apart and thoroughly clean all coolant circuits. Renew all gaskets, hoses, pumps. This may save you, but the rest of the car is likely contaminated now too, and if not now maybe further on it will have manifold problems.
At the least, the radiator probably is part-filed with goo and will be less efficient, and would be the Typhoid Mary occasionally releasing blobs into the system to gum things up forever.
Look at the bright side: You will learn alot.
Nothing good ever comes with that description.
Hey now. Rich ain’t about that life anymore.Not unless it is some doctored YouTube video enticing more people to waste their money and energy
Yes, you enable "tow mode" in the menu. If the car doesn't have power, you can "jump start" it. What do they mean by "disabling" it? Are they deactivating the pyrofuse? It can be reset, if not fired.Hi,
I am buying Tesla vehicle from a known person which sustained minor damage,right now car is in body shop for the estimate & Insurance company declared it total loss. I was told by the bodyshop they will disable the car before it leaves body shop & car needs to be dragged on to transport truck.Is this normal & Is there anyway we can at least put it in neutral for the car to roll on & off the truck?
Is there anyway we can put it in Neutral to let the wheels roll when the car is disabled?