Tesla Model S GEN1 Charger: Difference between revisions

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====Connector part numbers====
====Connector part numbers====
The Logic Connector X042 needed to plug into the charger is Molex 194180026<ref>https://www.molex.com/molex/products/part-detail/crimp_housings/0194180026</ref> which is in the MX150L series.   
The Logic Connector X042 needed to plug into the charger is Molex 194180026<ref>https://www.molex.com/molex/products/part-detail/crimp_housings/0194180026</ref> which is in the MX150L series.   
[[File:Molex 194180026 .png|left|500x500px]]
[[File:Molex 194180026 .png|left|500x500px|alt=Molex 194180026, female connector to mate with X042 Logic Connector on Tesla GEN1 OBC.|Molex 194180026]]





Revision as of 04:01, 25 February 2023

Overview

Tesla GEN1 Onboard AC Charger
Tesla GEN1 Onboard AC Charger

The Tesla GEN1 charger is a single/three phase 10kW AC charger that was fitted in the Model S from 2012 through late 2013, when it was replaced with GEN2. GEN1 models are easy to identify, with the word "TESLA" stamped on the metalwork; the GEN2 charger lacks the Tesla identifier stamped on the metalwork.

One (or optionally two, in a Master/Slave configuration) GEN1 chargers are installed beneath the rear seats in the Model S for AC charging. If two are fitted, both are identical hardware, though the firmware differs.

The charger is made up of three 3.3 kw modules, each sitting on a liquid cooling plate. This assembly enables both single and multi phase AC charging.

The GEN1 chargers are considered to be more trouble-prone than the later units, and are not as popular for use in EV conversions or ground-up builds, but are used in many OEM installations that continue to need servicing. Examples of OEM installs include the 2012-13 Tesla Model S, 2012-14 Toyota RAV4 EV[1], and 2014-17 MB B250e[2]. As far as is known, these are identical from a hardware perspective, but the firmware does differ and is not interchangeable between installations.

Important Considerations

Tesla Part Numbers (TPN)[3]

  • 6009278-00-x

Charger Connections

Logic Connector X042, 12-pin
Pin No. Function Description
1 12v supply
2 Charge Port: nozzle lock "InsertEN out"
3 HVIL Out
4 CAN +
5 EVSE-Pilot (CP)
6 FC CAN (SWCAN?)
7 12v GND
8 Drive inhibit "Prox out", signal to DU to inhibit drive
9 HVIL In
10 CAN -
11 EVSE-Prox (PP)
12 "BMS_12V_in" (BMS enables charger?)

Connector part numbers

The Logic Connector X042 needed to plug into the charger is Molex 194180026[4] which is in the MX150L series.

Molex 194180026, female connector to mate with X042 Logic Connector on Tesla GEN1 OBC.






Additional Resources

Common Issues

  • The Tesla chargers are very sensitive to grounding. The case MUST be connected to vehicle 12v ground and EVSE earth/ground when charging. [1] The OEM installation has a prominent ground strap.
Tesla Model S GEN1 OBC, showing prominent Ground Strap








Errata

Charger Dimensions:

Notes