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Toyota Prius Gen3 Board

Moebelschmitt — Tue, 03 Nov 2026 20:12:56 GMT

DC-DC Jumper & Pull-up Resistor

← Older revision		Revision as of 21:12, 3 November 2026
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	=== '''DC-DC Jumper & Pull-up Resistor''' ===		=== '''DC-DC Jumper & Pull-up Resistor''' ===
	''(tested with Yaris V2 Block IV circuit board, but it is similar to ~~the~~ Prius)''		''(tested with Yaris V2 Block IV circuit board, but it is similar to Prius)''

			Install jumper wire (red) directly from the right contact to the DC-DC converter's positive input.
			[[File:Jumper01.jpg\|alt=\|thumb\|Jumper Wire (red)\|none]]
			[[File:Jumper02.jpg\|thumb\|DC-DC Input Terminal\|none]][[File:Jumper03.jpg\|thumb\|Positive Battery Terminal on the right\|none]]Since precharge resistor might become significantly hot during “WaitStart" a 2W 680Ω pull-up resistor must be installed and connection between IC3 drain and CONN4 pin2.[[File:Pull-up resistor.jpg\|alt=\|thumb\|2W 680Ω pull-up resistor and connection between IC3 drain and CONN4 pin2. (blue resistor and wire)\|none]]

	Install jumper wire (red) directly from the right contact to the DC-DC converter's positive input. [[File:20200605 174452.jpg\|thumb\|alt=\|none]]The precharge resistor might become significantly hot during “WaitStart.” Install 2W 680Ω pull-up resistor and connection between IC3 drain and CONN4 pin2.
	~~[[File:Pull-up resistor.jpg\|alt=\|none\|thumb\|2W 680Ω pull-up resistor and connection between IC3 drain and CONN4 pin2.]]~~
	'''Precharge active:''' IC3 pulls the drain to GND. The pull-up then directs additional current through the resistor to GND.		'''Precharge active:''' IC3 pulls the drain to GND. The pull-up then directs additional current through the resistor to GND.

File:Jumper03.jpg

Moebelschmitt — Tue, 03 Nov 2026 14:49:55 GMT

Moebelschmitt uploaded File:Jumper03.jpg

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Jumper Wire (red)

File:Jumper02.jpg

Moebelschmitt — Tue, 03 Nov 2026 14:49:24 GMT

Moebelschmitt uploaded File:Jumper02.jpg

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Jumper Wire (red)

File:Jumper01.jpg

Moebelschmitt — Tue, 03 Nov 2026 14:45:19 GMT

Moebelschmitt uploaded File:Jumper01.jpg

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Jumper Wire (red)

Toyota Prius Gen3 Board

Moebelschmitt — Tue, 03 Nov 2026 14:30:58 GMT

DC-DC Jumper & Pull-up Resistor

← Older revision		Revision as of 15:30, 3 November 2026
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	See https://openinverter.org/forum/viewtopic.php?f=14&t=1039 for more details.		See https://openinverter.org/forum/viewtopic.php?f=14&t=1039 for more details.

			=== '''DC-DC Jumper & Pull-up Resistor''' ===
			''(tested with Yaris V2 Block IV circuit board, but it is similar to the Prius)''

			Install jumper wire (red) directly from the right contact to the DC-DC converter's positive input. [[File:20200605 174452.jpg\|thumb\|alt=\|none]]The precharge resistor might become significantly hot during “WaitStart.” Install 2W 680Ω pull-up resistor and connection between IC3 drain and CONN4 pin2.
			[[File:Pull-up resistor.jpg\|alt=\|none\|thumb\|2W 680Ω pull-up resistor and connection between IC3 drain and CONN4 pin2.]]
			'''Precharge active:''' IC3 pulls the drain to GND. The pull-up then directs additional current through the resistor to GND.

			'''Precharge inactive:''' IC3 is in a non-conducting (off) state. The drain is in a high-impedance state. The IGCT node is pulled to 12 V via the pull-up resistor.

			Also set parameters `bootprec=On` and `tripmode=2`.

	=== Soldering The Breakout Board ===		=== Soldering The Breakout Board ===

File:Pull-up resistor.jpg

Moebelschmitt — Tue, 03 Nov 2026 09:27:01 GMT

Moebelschmitt uploaded File:Pull-up resistor.jpg

New page

2W 680Ω pull-up resistor and connection between IC3 drain and CONN4 pin2