Finally I been able to source all the parts, retrofit the heated wheel and get it working fully integrated! To do this you will have to remove the airbag module and modify wiring.
Here is the big challenge. Before Dec 2014 the cars had the old style SCCM with the signal on the bottom and CC lever on the top. Those are LIN communication based, after 2014 the SCCM becomes CAN based. So you will need to modify the wiring harness.
Needed:
Heated SCCM
Heated Steering Wheel
Heat ECU
Updated Steering Wheel Buttons
Wire Harness from Wheel Button to Heated ECU
Wire Harness from SCCM to Heated ECU
2 crimps for SCCM connector
Wire
For the modification you will need to remove the green Pin 6 on the yellow SCCM connector. After you remove that replace it with a new wire connected to constant 12V.
Create a ground wire like above and place it in pin 7 of the SCCM connector.
Then install the sccm, wheel, and upgraded airbag module (same module but with the heater ECU) back into the car.
You will need Tesla to update your config to have heated steering wheel, and heated rear seats. (if you don't config for rear heated seats you will only be able to turn on the wheel from phone app)
This will not give you heated rear seats. You will be able to turn on the wheel without activating the climate from app. This was tested with software 2018.50, so different versions may have different results.
If you do something wrong, you can damage your car. If you wish to do this you will do it with your own responsibility. I'll post pics later.
Here is the big challenge. Before Dec 2014 the cars had the old style SCCM with the signal on the bottom and CC lever on the top. Those are LIN communication based, after 2014 the SCCM becomes CAN based. So you will need to modify the wiring harness.
Needed:
Heated SCCM
Heated Steering Wheel
Heat ECU
Updated Steering Wheel Buttons
Wire Harness from Wheel Button to Heated ECU
Wire Harness from SCCM to Heated ECU
2 crimps for SCCM connector
Wire
For the modification you will need to remove the green Pin 6 on the yellow SCCM connector. After you remove that replace it with a new wire connected to constant 12V.
Create a ground wire like above and place it in pin 7 of the SCCM connector.
Then install the sccm, wheel, and upgraded airbag module (same module but with the heater ECU) back into the car.
You will need Tesla to update your config to have heated steering wheel, and heated rear seats. (if you don't config for rear heated seats you will only be able to turn on the wheel from phone app)
This will not give you heated rear seats. You will be able to turn on the wheel without activating the climate from app. This was tested with software 2018.50, so different versions may have different results.
If you do something wrong, you can damage your car. If you wish to do this you will do it with your own responsibility. I'll post pics later.