Tesla Model S Front HVJB - Revision history

Tom91: Categories

2024-12-20T16:58:52Z

Asavage: /* Overview */ Updated date range, and added historical note about the reason for the GEN2 Front HVJB being implemented.

2023-03-21T19:02:10Z

Overview: Updated date range, and added historical note about the reason for the GEN2 Front HVJB being implemented.

← Older revision		Revision as of 19:02, 21 March 2023
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	== Overview ==		== Overview ==
	The second-generation front HVJB (Tesla p/n: 1028843-01-A & 1028843-01-C) found in the early (~~2012~~-2016) Model S, isn't particularly useful on its own, but it does enable a number of other HV accessories as literally plug and play.		The second-generation front HVJB (Tesla p/n: 1028843-01-A & 1028843-01-C) found in the early (late2013-2016) Model S, isn't particularly useful on its own, but it does enable a number of other HV accessories as literally plug and play.

			This GEN2 Front HVJB replaced the earlier (2012-Jan2014) DC-DC Converter that had served as the Front HVJB on the original production Model S, and which had troublesome internal fuses that were difficult to replace.

Jason arnold: added categories

2022-03-22T19:36:38Z

added categories

← Older revision		Revision as of 19:36, 22 March 2022
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	[[Category:OEM]]		[[Category:OEM]]
	[[Category:Tesla]]		[[Category:Tesla]]
			[[Category:HVJB]]

Jason arnold: added categories

2022-03-22T19:35:49Z

added categories

← Older revision		Revision as of 19:35, 22 March 2022
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	\|}		\|}
	The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and are detailed in the [[Tesla Model S Battery Heater]] article. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.		The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and are detailed in the [[Tesla Model S Battery Heater]] article. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.
			[[Category:OEM]]
			[[Category:Tesla]]

Jason arnold: /* LV */ typo fix

2022-03-17T03:33:07Z

LV: typo fix

← Older revision		Revision as of 03:33, 17 March 2022
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	\|HVIL out (not needed)		\|HVIL out (not needed)
	\|}		\|}
	The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and ~~will be~~ are detailed in the [[Tesla Model S Battery Heater]] article. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.		The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and are detailed in the [[Tesla Model S Battery Heater]] article. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.

Jason arnold: /* LV */ updated with link to Battery Heater page

2022-03-17T03:32:26Z

LV: updated with link to Battery Heater page

← Older revision		Revision as of 03:32, 17 March 2022
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	\|HVIL out (not needed)		\|HVIL out (not needed)
	\|}		\|}
	The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and will be detailed in ~~a future OI Wiki contribution~~. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.		The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and will be are detailed in the [[Tesla Model S Battery Heater]] article. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.

Jason arnold: /* HV */ added KET plug table with part numbers

2022-03-15T22:43:13Z

HV: added KET plug table with part numbers

← Older revision		Revision as of 22:43, 15 March 2022
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	=== HV ===		=== 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:		There are 4 colour-coded HV sockets 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 - fused internally at "F1" (20A)		* Grey: Battery Fluid Heater - fused internally at "F1" (20A)
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	* Orange: A/C Compressor - fused internally at "F2" (40A)		* Orange: A/C Compressor - fused internally at "F2" (40A)
	* Brown: PTC Cabin Heater - fused internally at "F3" (40A)		* Brown: PTC Cabin Heater - fused internally at "F3" (40A)


			These HV connectors are KET HVSC 280 series, and, while mating plugs for these sockets are known, they are not easily available. For reference, the mating plugs are:

			* Gray (fluid heater): MG655774 (key B)
			* Blue (DC-DC): MG655776 (key D)
			* Orange (A/C): MG655773 (key A)
			* Brown (PTC heater): MG655775 (key C)

	=== LV ===		=== LV ===

Jason arnold: /* LV */ added paragraph detailing LV pinout

2022-02-28T00:19:13Z

LV: added paragraph detailing LV pinout

← Older revision		Revision as of 00:19, 28 February 2022
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	* Blue: DC-DC Converter - fused internally at "F4" (20A)		* Blue: DC-DC Converter - fused internally at "F4" (20A)
	* Orange: A/C Compressor - fused internally at "F2" (40A)		* Orange: A/C Compressor - fused internally at "F2" (40A)
	* Brown: PTC Cabin Heater - - fused internally at "F3" (40A)		* Brown: PTC Cabin Heater - fused internally at "F3" (40A)

	=== LV ===		=== LV ===
	The LV connector on the bottom left side is a 12-pin Molex MX150 series (Molex p/n: [https://www.molex.com/molex/products/part-detail/crimp_housings/0334721201 33472-1201]). Only 6 of the 12 pins are populated, as follows:		The LV connector on the bottom left side is a 12-pin Molex MX150 series (Molex p/n: [https://www.molex.com/molex/products/part-detail/crimp_housings/0334721201 33472-1201]). Only 6 of the 12 pins are populated, as follows:
	{\| class="wikitable"		{\| class="wikitable"
	\|+[[File:Connector-Tesla-FJB.png\|200x200px]]<small>(~~connector side~~)</small>		\|+LV pinout[[File:Connector-Tesla-FJB.png\|200x200px]]<small>(harness view)</small>
	!pin		!pin
	!function		!function
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	\|-		\|-
	\|6		\|6
	\|~~STAT~~ out		\|STATUS out
	\|-		\|-
	\|10		\|10
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	\|-		\|-
	\|11		\|11
	\|HVIL in		\|HVIL in (not needed)
	\|-		\|-
	\|12		\|12
	\|HVIL out		\|HVIL out (not needed)
	\|}		\|}
			The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and will be detailed in a future OI Wiki contribution. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.

Jason arnold: added "Dimensions" heading, added LV connector part number and pinout pic

2022-02-27T23:40:09Z

added "Dimensions" heading, added LV connector part number and pinout pic

← Older revision		Revision as of 23:40, 27 February 2022
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	[[File:Tesla-Front-HVJB.jpg\|thumb\|Tesla front HVJB (shown with HV cable)]]		[[File:Tesla-Front-HVJB.jpg\|thumb\|Tesla gen 2 front HVJB (shown with HV cable)]]

	== Overview ==		== Overview ==
	The second-generation front HVJB (Tesla p/n: 1028843-01-A & 1028843-01-C) found in the early (2012-2016) Model S, isn't particularly useful on its own, but it does enable a number of other HV accessories as literally plug and play.		The second-generation front HVJB (Tesla p/n: 1028843-01-A & 1028843-01-C) found in the early (2012-2016) Model S, 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)~~:
			''Unless otherwise noted, info below was sourced from: https://www.diyelectriccar.com/threads/hacking-the-tesla-model-s-front-junction-box.193729/''

			== Dimensions ==
			Case measurements:

	* L : 9 1/4in case (10 3/4 to allow for LV connector and ground connection)		* L : 9 1/4in case (10 3/4 to allow for LV connector and ground connection)
Line 25:		Line 29:

	=== LV ===		=== 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:		The LV connector on the bottom left side is a 12-pin Molex MX150 series (Molex p/n: [https://www.molex.com/molex/products/part-detail/crimp_housings/0334721201 33472-1201]). Only 6 of the 12 pins are populated, as follows:
	{\| class="wikitable"		{\| class="wikitable"
	\|+<~~insert plug pic here~~>		\|+[[File:Connector-Tesla-FJB.png\|200x200px]]<small>(connector side)</small>
	!pin		!pin
	!function		!function

Jason arnold: Jason arnold moved page Tesla Model S/X Front HVJB to Tesla Model S Front HVJB: main name change - part not present in Model X

2022-02-27T23:23:55Z

Jason arnold moved page Tesla Model S/X Front HVJB to Tesla Model S Front HVJB: main name change - part not present in Model X

← Older revision	Revision as of 23:23, 27 February 2022
(No difference)

← Older revision		Revision as of 16:58, 20 December 2024
Line 65:		Line 65:
	\|}		\|}
	The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and are detailed in the [[Tesla Model S Battery Heater]] article. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.		The purpose of this LV connector is to control the built-in PWM circuit for the battery heater that is attached via the grey HV plug. The PWM control parameters are known and are detailed in the [[Tesla Model S Battery Heater]] article. As noted, HVIL pins 11 & 12 seem to have no effect on the function of the HVJB and can be left de-pinned.
	~~[[Category:OEM]]~~
	[[Category:Tesla]]		[[Category:Tesla]]
	[[Category:HVJB]]		[[Category:HVJB]]