Tesla Model S Front HVJB: Difference between revisions
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Jason arnold (talk | contribs) (Created page with "== Overview == The x-generation (year-year) front HVJB isn't particularly useful on its own, but it does enable a number of other HV accessories as literally plug and play. =...") |
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== Overview == | == Overview == | ||
The x-generation (year-year) front HVJB isn't particularly useful on its own, but it does enable a number of other HV accessories as literally plug and play. | The x-generation (year-year) front HVJB isn't particularly useful on its own, but it does enable a number of other HV accessories as literally plug and play. | ||
Case measurements (as per: https://www.diyelectriccar.com/threads/hacking-the-tesla-model-s-front-junction-box.193729/post-994546): | |||
* L : 9 1/4in case (10 3/4 to allow for LV connector and ground connection) | |||
* W: 8 1/4in case (9 1/4 to allow for HV plugs to A/C, DC-DC,etc. and HV in) | |||
* H: 2 3/4in case (3 1/4 if the mounting bracket still fitted) | |||
HV hole size: | |||
* less than 15mm, hard to get actual without disassembly, probably 13-14mm diameter | |||
== Connections == | == Connections == | ||
Revision as of 05:18, 27 February 2022
Overview
The x-generation (year-year) front HVJB isn't particularly useful on its own, but it does enable a number of other HV accessories as literally plug and play.
Case measurements (as per: https://www.diyelectriccar.com/threads/hacking-the-tesla-model-s-front-junction-box.193729/post-994546):
- L : 9 1/4in case (10 3/4 to allow for LV connector and ground connection)
- W: 8 1/4in case (9 1/4 to allow for HV plugs to A/C, DC-DC,etc. and HV in)
- H: 2 3/4in case (3 1/4 if the mounting bracket still fitted)
HV hole size:
- less than 15mm, hard to get actual without disassembly, probably 13-14mm diameter
Connections
HV
There are 4 colour-coded HV plugs found along the top side of the unit (as oriented with the front label right side up) that correspond to particular HV systems. From left to right, they are:
- Grey: Battery Fluid Heater
- Blue: DC-DC Converter
- Orange: A/C Compressor
- Brown: PTC Cabin Heater
LV
The LV connector on the bottom left side is a 12-pin Molex MX150. Only 6 of the 12 pins are populated, as follows:
| pin | function |
|---|---|
| 4 | 12V |
| 5 | PWM in |
| 6 | STAT out |
| 10 | GND |
| 11 | HVIL in |
| 12 | HVIL out |