Tesla Model S/X GEN3 Charger

The Tesla GEN3 is a single/three phase AC charger that was fitted in the Model S starting with the 2016 'facelift' model. The GEN3 has been fitted on all Model X models.

It is 566mm long, 360mm wide and 90mm high, without the water ports on both small sides. On the underside there are 8 M6 threads to attach.

"Running a Tesla charger at much under 200v dc will cause it to explode. Yes I know the label says 50 to 450v but it lies. Yes I blew one up discovering this."

P/N 103564701C device is 3phase EU version of 72A output charger! On the outside you can distinguish it by a sticker on the side which says 3PH

Charger with top cover removed

Step 1, to confirm all modules charger work you can connect 12V between top and bottom leftmost pins of the LV connector. Every modul lits its standby LED.

Step 2, was to remove internal components from contactor box in front of the modules. There are DC rails, AC rails, fuse and contactors which we will not use.

Image from Damiens github repo to clarify pin no 1

Step 3, inspect each power modules contact points with control board. This is where we will apply new wiring to be able to control the charger. See wiring table of module pinout.

gen 3 controller

https://github.com/damienmaguire/Tesla-Gen3-Charger

Low Voltage Connections

20 Way plug p/n :33472-2001

12 Way plug p/n:33472-1236

Pin p/n:33012-2002 20 way

plug pinout (To Vehicle)

Pin	Signal	Pin	Signal
1	Ground	11	CAN Ground
2	12V Perm Supply	12	USB D+
3	Output 1	13	USB D-
4	Output 2	14	USB 5V
5	Input 1	15	Not Used
6	Input 2	16	Not Used
7	EVSE Control Pilot (CP)	17	Not Used
8	EVSE Proximity (PP)	18	Not Used
9	CAN Low	19	Not Used
10	CAN High	20	Not Used

12 way plug pinout (To charger power modules)

Pin	Signal	Pin	Signal
1	Ground	7	Charger 2 Activate Signal
2	12V out	8	Charger 3 Activate Signal
3	5V out	9	Charger 1 Enable Signal
4	CAN Low	10	Charger 2 Enable Signal
5	CAN High	11	Charger 3 Enable Signal
6	Charger 1 Activate Signal	12	Not Used

The "vehicle side" connector has digital inputs and outputs, these function the same as the Gen2 inputs and outputs:

Pin	Signal	Gen2 Name
3	Output 1	OUT1 - HV enable
4	Output 2	OUT2 - AC present
5	Input 1	input "D1" enable
6	Input 2

The other connections are named the same or have clearly identifiable functions.

The outputs will not output 12v, they are low side switches. If you require a 12v ac present signal then use a relay with its coil switched from the relevant pin.

Software

Software is the same as the Gen2 Tesla Charge V5 boards

Tesla Model S/Tesla Gen23 V5 Software