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VW MEB DCDC

Mappleton — Sun, 08 Nov 2026 14:59:05 GMT

← Older revision		Revision as of 15:59, 8 November 2026
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	<br>		<br>
	{\| class="wikitable"		{\| class="wikitable"
	\|+ ~~12V~~ Plug		\|+ HV Plug
	\|-		\|-
	\| [[File:VWDCDCP4.jpg\|frameless]] \|\| [[File:VWDCDCP5.jpg\|frameless]] \|\| [[File:VWDCDCP6.jpg\|frameless]]		\| [[File:VWDCDCP4.jpg\|frameless]] \|\| [[File:VWDCDCP5.jpg\|frameless]] \|\| [[File:VWDCDCP6.jpg\|frameless]]

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

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

VW MEB DCDC

Mappleton — Sun, 01 Nov 2026 00:40:06 GMT

← Older revision		Revision as of 01:40, 1 November 2026
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	\|Keep diagnostic session alive		\|Keep diagnostic session alive
	\|}		\|}
	[[Category:VAG ~~\| V~~]]		[[Category:VAG]]
	[[Category:DC/DC ~~\| V~~]]		[[Category:DC/DC]]

VW MEB DCDC

Mappleton — Sun, 01 Nov 2026 00:30:39 GMT

Created page with "== General == Information on the VW MEB DC-DC converter. Damien has done a lot of work on this, visit his github: https://github.com/damienmaguire/VW-MEB-DCDC-Hacking frameless|thumb|right * Bosch Gen4H13 * PN 1EA907190G * Requires CAN-FD. The bus runs at 500 kbit/s nominal / 2 Mbit/s data. Standard CAN will not work. == Wiring and Plugs == frameless {| |+ Data Plug |- | File:VWDCDCP..."

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== General ==
Information on the VW MEB DC-DC converter. 

Damien has done a lot of work on this, visit his github: 
https://github.com/damienmaguire/VW-MEB-DCDC-Hacking

[[File:VAG-DCDC.webp|frameless|thumb|right]]
* Bosch Gen4H13
* PN 1EA907190G
* Requires CAN-FD. The bus runs at 500 kbit/s nominal / 2 Mbit/s data. Standard CAN will not work.

== Wiring and Plugs ==
[[File:VAG-MEB-DCDC-Wiring-diagram.png|frameless]]
 
{|
|+ Data Plug
|-
|
[[File:VWDCDCP1.jpg|frameless]]
|| [[File:VWDCDCP2.jpg|frameless]] || [[File:VWDCDCP3.jpg|frameless]]
|}
 
{| class="wikitable"
|+ 12V Plug
|-
| [[File:VWDCDCP4.jpg|frameless]] || [[File:VWDCDCP5.jpg|frameless]] || [[File:VWDCDCP6.jpg|frameless]]
|}

== CAN Messages ==

=== Transmitted (TX) ===
{| class="wikitable"
!ID
!Name
!Interval
!Description
|-
|0x20F
|NVEM_10
|50 ms
|12V setpoint. Byte 7 = voltage raw: <code>(V - 10.6) / 0.025</code>
|-
|0x503
|HVK_01
|100 ms
|Mode request. See below.
|-
|0x271
|HVLM_13
|100 ms
|Charging management frame
|-
|0x5BB
| -
|500 ms
|Keep-alive (zeros)
|-
|0xCF
|BMS_20
|100 ms
|Pack voltage (precharge only)
|}

=== Received (RX) ===
{| class="wikitable"
!ID
!Name
!Description
|-
|0x0F7
|DCDC_04
|Status. <code>DC_IstModus_02</code> at bit 41.
|-
|0x2AE
|DCDC_01
|HV voltage. <code>DC_IstSpannung_HV</code> at bits 12-23, scale 0.25V.
|-
|0x3F4
|DCDC_02
|Status
|-
|0x5CD
|DCDC_03
|Status
|}

=== HVK_01 (0x503) Mode Bits ===
Byte 3 contains the mode request:

* Bits 0-2: BMS mode
* Bits 3-5: DC-DC mode (<code>HVK_DCDC_Sollmodus</code>)

DC-DC modes:

* 0 = Standby
* 1 = Precharge (<code>HV_On_Vorladen</code>)
* 2 = Buck (<code>Tiefsetzen</code>)

Byte 1 high nibble:

* 0x6 = normal
* 0xE = precharge active

== DTC Types ==
The DC-DC stores two categories of DTCs:

=== Standard DTCs ===
Communication and operational faults that clear when the condition resolves or with a standard DTC clear (service 14). Examples:

* Lost communication with BMS
* Bus performance faults
* Voltage sensor range/performance

=== Persistent DTCs ===
Protected faults that survive power cycles and standard DTC clears. These require specific vehicle conditions to clear:
{| class="wikitable"
!DTC
!Code
!Description
|-
|Crash Lock
| -
|Latched after crash detection. Prevents operation.
|-
|P1BC300
|0x54 0xED
|HV interruption detected. Prevents operation.
|-
|P0E5600
|0x0D 0x65
|Input voltage too low
|}
'''Clearing persistent DTCs:'''

The unit clears these when it sees a valid vehicle environment. No diagnostic session or clear command is required — just the right frames on the bus for ~15 seconds.

Minimum frame set (from verified log):
{| class="wikitable"
!ID
!Name
!Interval
!Purpose
|-
|0x3C0
|Klemmen_Status_01
|100ms
|Ignition (Kl15) on
|-
|0x503
|HVK_01
|100ms
|Mode request
|-
|0x5A2
| -
|500ms
|Vehicle status
|-
|0x6B2
|Diagnose_01
|1000ms
|Unlearn counter, odometer
|-
|0x6B7
| -
|1000ms
| -
|-
|0x700
|Tester Present
|1000ms
|Keep diagnostic session alive
|}
[[Category:VAG | V]]
[[Category:DC/DC | V]]

File:VWDCDCP6.jpg

Mappleton — Sat, 31 Oct 2026 23:59:50 GMT

Mappleton uploaded File:VWDCDCP6.jpg

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File:VWDCDCP5.jpg

Mappleton — Sat, 31 Oct 2026 23:58:25 GMT

Mappleton uploaded File:VWDCDCP5.jpg

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File:VWDCDCP4.jpg

Mappleton — Sat, 31 Oct 2026 23:55:12 GMT

Mappleton uploaded File:VWDCDCP4.jpg

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File:VWDCDCP3.jpg

Mappleton — Sat, 31 Oct 2026 23:48:45 GMT

Mappleton uploaded File:VWDCDCP3.jpg

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File:VWDCDCP2.jpg

Mappleton — Sat, 31 Oct 2026 23:46:05 GMT

Mappleton uploaded File:VWDCDCP2.jpg

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File:VWDCDCP1.jpg

Mappleton — Sat, 31 Oct 2026 23:41:25 GMT

Mappleton uploaded File:VWDCDCP1.jpg

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File:VAG-MEB-DCDC-Wiring-diagram.png

Mappleton — Sat, 31 Oct 2026 23:29:54 GMT

Mappleton uploaded File:VAG-MEB-DCDC-Wiring-diagram.png

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File:VAG-DCDC.webp

Mappleton — Sat, 31 Oct 2026 23:25:13 GMT

Mappleton uploaded File:VAG-DCDC.webp

New page

Toyota Prius Gen3 Board

Eagle411 — Sat, 31 Oct 2026 13:46:58 GMT

← Older revision		Revision as of 14:46, 31 October 2026
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	The Toyota Prius Gen3 Board is an open source project to repurpose 2010-2015 Toyota Prius inverters for DIY EV use.		The Toyota Prius Gen3 Board is an open source project to repurpose 2010-2015 Toyota Prius inverters for DIY EV use.

	It consists of a open inverter circuit board and programming which replaces the OEM logic board in the prius inverter.		It consists of a open inverter circuit board and programming which replaces the OEM logic board in the prius inverter. There are several different board variants to fit different toyota inverter part numbers and for different use cases.

	~~This~~ allows independent control of mg1 power stage, mg2 power stage, buck/boost converter and the dc/dc converter.		The dual motor board allows independent control of mg1 power stage, mg2 power stage, buck/boost converter and the dc/dc converter. The single motor board is similar, but the mg1 and mg2 power stages are linked for increase power output to a single motor. In addition there are board that fit the slightly different form factor of the yaris.

	<nowiki>*</nowiki>Note that there is also a [[Toyota Prius Gen2 Inverter]] for the 2004-2009 model years.		The single motor board contains external CAN bus interfaces, but the dual motor board doesn't have an external CAN bus interface to communicate with a VCU or BMS. It uses a cross linked internal CAN bus to communicate between the independant MG1 and MG2 microcontrollers. This interface must be configured manually.

			<nowiki>*</nowiki>Note: As of 10/31/2026 the majority of these boards are unavailable on the webshop, so you'll need to go through a PCB manufacturer yourself in order to procure most of these boards.

			<nowiki>*</nowiki>Note that there is also a [[Toyota Prius Gen2 Inverter]] for the 2004-2009 model years.

	== Prius Inverter ==		== Prius Inverter ==

MG ZS Charger

Thomaa — Tue, 27 Oct 2026 06:01:55 GMT

added labeled pinout for 6625A

← Older revision		Revision as of 07:01, 27 October 2026
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	0x3BE maybe error codes		0x3BE maybe error codes

			== EP2CCU6625A ==
			[[File:EP2CCU6625A pinout.png\|thumb\|pinout from EP2CCU6625A damien bench demos in this video <nowiki>https://vimeo.com/924354403?fl=pl&fe=sh</nowiki>]]










	== EP3CCU1130B ==		== EP3CCU1130B ==

File:EP2CCU6625A pinout.png

Thomaa — Tue, 27 Oct 2026 06:01:02 GMT

Thomaa uploaded File:EP2CCU6625A pinout.png

New page

pinout from EP2CCU6625A damien bench demos in this video https://vimeo.com/924354403?fl=pl&fe=sh

LS600H

Robertwa — Sat, 24 Oct 2026 17:31:13 GMT

updated rear output flange

← Older revision		Revision as of 18:31, 24 October 2026
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	#* AWD output via integrated transfer case		#* AWD output via integrated transfer case
	#* Bellhousing bolt pattern		#* Bellhousing bolt pattern
	#* Rear output flange bolt pattern		#* Rear output flange bolt pattern (same as GS300H)
	# Inverter		# Inverter
	#* Transmission to inverter HV wiring		#* Transmission to inverter HV wiring

MG ZS Charger

Thomaa — Sat, 24 Oct 2026 04:12:18 GMT

added IM6 charger

@@ Line 66: / Line 66: @@
 |230-450Vdc 13A Max
 |9-16V 178A Max@14V
+|
 |}

MG PTC Cabin Air Heater

SHQAssel — Tue, 20 Oct 2026 09:27:55 GMT

simplified explaination of the requested power

← Older revision		Revision as of 10:27, 20 October 2026
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	* no timers, counters or CRC are needed, but there is a '''delay of about 3 seconds''' until settings are applied		* no timers, counters or CRC are needed, but there is a '''delay of about 3 seconds''' until settings are applied
	* Bytes 2E and 2F contain the control messages, 3A has the responses		* Bytes 2E and 2F contain the control messages, 3A has the responses
	*Control is in byte 0+1 of 0x2E ~~Scaling = x25 Little~~ endian ~~So if you want 20% power~~ you need to send decimal 500 which is hex 01F4 So then Byte 0 = 0xF4 and Byte 1 = 0x01 Byte 4 looks to be on/off with 0x96 = ON and 0x00 = Off but it does not fully turn off. I kept seeing a current draw on the bench power supply of 0,07A at 300V. When requesting power 0% this does drop to 0A.		*Control is in byte 0+1 of 0x2E just put the requested power in W as little endian here. For 500w you need to send decimal 500 which is hex 01F4 So then Byte 0 = 0xF4 and Byte 1 = 0x01.
			*Byte 4 looks to be on/off with 0x96 = ON and 0x00 = Off but it does not fully turn off. I kept seeing a current draw on the bench power supply of 0,07A at 300V. When requesting power 0% this does drop to 0A.
	*Feedback Message 0x3A Byte 5 and 6 contain the actual consumption in W as little endian. So if Byte 5 = CF and Byte 6 = 04 that is 04CF in hex which is 1,2 kW.		*Feedback Message 0x3A Byte 5 and 6 contain the actual consumption in W as little endian. So if Byte 5 = CF and Byte 6 = 04 that is 04CF in hex which is 1,2 kW.
	*Below about 250V it stops working. Then 0x3A sends 00 00 00 08 00 00 00 20		*Below about 250V it stops working. Then 0x3A sends 00 00 00 08 00 00 00 20

ZombieVerter VCU

Bratitude — Tue, 13 Oct 2026 19:40:51 GMT

Generic input and outputs functions:

← Older revision		Revision as of 20:40, 13 October 2026
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	\|HVRequest		\|HVRequest
	\|'''DIGITAL INPUT'''		\|'''DIGITAL INPUT'''
	\|~~NOT FUNCTIONING~~		\|brings the HV system live
	\|-		\|-
	\|DCFCRequest		\|DCFCRequest

Zombieverter Wiring

Bratitude — Tue, 13 Oct 2026 18:35:06 GMT

fixed pinout error

← Older revision		Revision as of 19:35, 13 October 2026
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	Analogue inputs:		Analogue inputs:

	* '''Analogue 1 in''' (pin 23)		* '''Analogue 1 in''' (pin 9)
	* '''Analogue 2 in''' (pin 22)		* '''Analogue 2 in''' (pin 8)

	=== Pin functions: ===		=== Pin functions: ===