Our analysis and count of processors cover common modules and components of the Model S and X. This list is based on our analysis of the vehicles and various public documents in the 2016 era. Chips and locations can change over time and over various models, so this is just more of a snapshot in time. It’s also likely some processors shown may be merged into a single module with a single CPU. This is especially true of the Model 3.
NVIDIA Tegra 3 CPU board from S/X MCU1
| Name | Area | Notes | Sets | CPUs | Sub-total |
| ABS (Anti-lock Braking) | ? | 1 | 1 | 1 | |
| AC Motor Inverter/Charger | Rear | 1 | 2 | 2 | |
| Active Cruise Control | ? | Cars built after 14-Sep-2014 | 1 | 1 | 1 |
| Air Suspension | ? | Continental | 1 | 1 | 1 |
| AM/FM/HD radio | Dash | Panasonic | 1 | 1 | 1 |
| Audio System | Dash | PIC18f2550 | 1 | 1 | 1 |
| Autopilot 1 Camera CPU* | Windshield | Mobileye EyeQ3 | 1 | 1 | 1 |
| Autopilot 1 Processor* | Windshield | Freescale SPC5603 | 1 | 1 | 1 |
| Autopilot 2.0 Processors* | Dash | Nvidia PX2 & one Freescale CPU | 1 | 2 | 2 |
| Battery Sub-Module | Battery | 16 in 85/90 kWh, 14 in 60/70 kWh models | 16 | 1 | 16 |
| Bluetooth | Dash | 1 | 1 | 1 | |
| Charger Module | Rear Seat | 1-Standard, 2-optional | 2 | 1 | 2 |
| Connectivity – 3G/LTE | Dash | Sierra Wireless AR8550 (3G), later AR755X (LTE) | 1 | 1 | 1 |
| Door Handle Controller | Doors | 4 | 1 | 4 | |
| Folding Mirror Controller | ? | 1 | 1 | 1 | |
| FOB Receiver | ? | 1 | 1 | 1 | |
| GPS | ? | 1 | 1 | 1 | |
| HVAC (Heating/Air Conditioning) | Dash | UPD70F3628GCA 32-Bit MCU | 1 | 1 | 1 |
| HomeLink | Front | Johnson Controls | 1 | 1 | 1 |
| Instrument Display | Dash | Nvidia Tegra 2 | 1 | 1 | 1 |
| Main Display, 17″ | Dash | Nvidia Tegra 3 | 1 | 1 | 1 |
| Mobile Charger | External | 1 | 1 | 1 | |
| Parking Brake | ? | TI TMS320F28034PNQ 32-Bit MCU | 1 | 1 | 1 |
| Parking Sensors | ? | 1 | 1 | 1 | |
| Power Steering | Front | ZF Lenksysteme | 1 | 1 | 1 |
| Rear Camera | Rear | OmniVision | 1 | 1 | 1 |
| Rear Power Liftgate | Rear | MC9S12XEP100CAG 16-Bit MCU | 1 | 1 | 1 |
| Rear Taillights | Rear | 2 | 1 | 2 | |
| Safety Restraints Controller | ? | 1 | 1 | 1 | |
| Seat Controller | Seats | Fisher Dynamics | 2 | 1 | 2 |
| Security module | ? | 1 | 1 | 1 | |
| Side Window Controllers | Sides | Inteva Products | 4 | 1 | 4 |
| Sunroof controller | ? | Freescale MC33742PEG | 1 | 1 | 1 |
| Thermal Controller | ? | Freescale C9S12XEP100MAG 16-Bit MCU | 1 | 1 | 1 |
| TPMS (Tire Pressure Monitoring) | Rear | Baolong (early cars) Continental (later) | 1 | 1 | 1 |
| Traction Control | ? | 1 | 1 | 1 | |
| Body Control Unit | Below Dash | Freescale MC9S12XEP100CAG 16-Bit MCU | 1 | 2 | 2 |
| Wiper control w/rain detect | Front | 1 | 1 | 1 | |
| XM Satellite | Dash | 1 | 1 | 1 | |
| Total CPUs | 65 |
* Total only includes AP1 (not both AP1 and AP2 processors). AP2 also includes a GPU, not shown.
2 comments
How many of the controllers are connected to CAN bus? And what protocol had been used?
Sorry, but I have no idea. Perhaps if Tesla ever releases the schematic, we can identify all the controllers on the CAN bus.