Volkswagen Heater: Difference between revisions

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VW heater P/N are:
[[File:VW heater.jpg|thumb]]


* 3Q0963231A
== General Information <ref>http://datasheets.dbk-worldwide.com/EN/Datasheets/WireHeaters/DBKITM_HV%20Water%20heater_eng.pdf (Backup: [http://web.archive.org/web/20221016161226/http://datasheets.dbk-worldwide.com/EN/Datasheets/WireHeaters/DBKITM_HV%20Water%20heater_eng.pdf Web Archive])</ref> ==
* 3Q0963231C
* 3Q0963231E
[[File:VW heater.jpg|thumb]]  


LIN messages for the water heater:
* Operating Voltage: 280VDC - 450VDC
* Power: 5kW (7kW "boost" between 350-450V)
* Control via LIN by integrated electronics
* Temperature control by integrated sensor
* 3d Scan: [https://grabcad.com/library/vw-egolf-gte-electric-water-heater-1 https://grabcad.com/]


ID 33 (0x61) 


* length 8 Byte / ENHANCED Checksum
* Byte 0 =1 at HV voltage under 200V, =0 above 200V (below 200V it want work, so its a kinde of HV OK)
* Byte 1 =112, always, i dont know why
* Byte 2 =RPM as set via PID=32 in Byte 0
* (Byte 3 =110 below 200V, =14 above 200V, =46 when er running)
* Byte 3 bit 6= HV not OK
* Byte 3 bit 5= running
* Byte 5 =temperature 160 at 24°C, i don't know the scaling and what themperature that is til now
* Byte 6 =54 at 109V, =28 at 56V =83 at166V scaling: Voltage/2


== Pinout/Connectors ==
[[File:VW heater connectors (annotated).jpg|thumb]]




ID28 is sent for control, every 50ms
HV connector: TE 4-2103177-5 (HVA 280 series - key "E")
* HV+ near to the body,


Byte 0 is power, last bit of byte 1 starts and stops
*HV- far from the body




LV connector: TE 1-1394416-1


HV cable P/N is 3Q0971475 or 5Q0971475.
* Pin 1 is permanent 12V
* Pin 2 is GND
*Pin 4 is LIN
 
 
 
 
==LIN Bus Communication ==


LV connector looks like it is Webasto 1J0973714 8P type.
  {| class="wikitable"
|+Control and Answer Messages from/to Heater<ref>https://openinverter.org/forum/viewtopic.php?p=26604#p26604</ref>
!ID
!Description
!Length
!Checksum Type
!Byte 0
!Byte 1
!Byte 2
! Byte 3
!Byte 4
!Byte 5
!Byte 6
!Byte 7
|-
|Dec: 28
Hex: 0x1C


PID: 0x9C
|Control, every 50ms
|2
|Enhanced
|Power
0-100%


HV connector HVA 280 KEY_E from TE
scale: x1
| Last bit: Start/Stop
|
|
|
|
|
|
|-
|Dec: 48
Hex: 0x30


* +HV near to the body,
PID: 0xF0
|Feedback
|8
|Enhanced
|HV Current:
Unit: Amp
Scale: 0.25
|??
|??
|??
|LV Voltage:
Unit: Volt
Scale: 0.1
|Module Temp
Unit: Celcius
offset:-50
|Temperature in
Unit: Celsius
offset:-50
|Temperature out
Unit: Celsius
offset:-50
|}
==VW Part Numbers==


* -HV far from the body
Heater:


*3Q0 963 231 A
*3Q0 963 231 C
*3Q0 963 231 E


LV Connector 1J0973714


* Pin 1 is permanent 12V
Cable assemblies:
* Pin 2 is GND
 
* Pin 4 is LIN
* HV cable is 3Q0 971 475 or 5Q0 971 475
* LV cable appears to be 1J0 973 714
 
==References==
<references />
[[Category:OEM]]
[[Category:VAG]]
[[Category:HVAC]]

Latest revision as of 17:07, 27 March 2024

VW heater.jpg

General Information [1]

  • Operating Voltage: 280VDC - 450VDC
  • Power: 5kW (7kW "boost" between 350-450V)
  • Control via LIN by integrated electronics
  • Temperature control by integrated sensor
  • 3d Scan: https://grabcad.com/


Pinout/Connectors

VW heater connectors (annotated).jpg


HV connector: TE 4-2103177-5 (HVA 280 series - key "E")

  • HV+ near to the body,
  • HV- far from the body


LV connector: TE 1-1394416-1

  • Pin 1 is permanent 12V
  • Pin 2 is GND
  • Pin 4 is LIN



LIN Bus Communication

Control and Answer Messages from/to Heater[2]
ID Description Length Checksum Type Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
Dec: 28

Hex: 0x1C

PID: 0x9C

Control, every 50ms 2 Enhanced Power

0-100%

scale: x1

Last bit: Start/Stop
Dec: 48

Hex: 0x30

PID: 0xF0

Feedback 8 Enhanced HV Current:

Unit: Amp Scale: 0.25

?? ?? ?? LV Voltage:

Unit: Volt Scale: 0.1

Module Temp

Unit: Celcius offset:-50

Temperature in

Unit: Celsius offset:-50

Temperature out

Unit: Celsius offset:-50

VW Part Numbers

Heater:

  • 3Q0 963 231 A
  • 3Q0 963 231 C
  • 3Q0 963 231 E


Cable assemblies:

  • HV cable is 3Q0 971 475 or 5Q0 971 475
  • LV cable appears to be 1J0 973 714

References

  1. ↑ http://datasheets.dbk-worldwide.com/EN/Datasheets/WireHeaters/DBKITM_HV%20Water%20heater_eng.pdf (Backup: Web Archive)
  2. ↑ https://openinverter.org/forum/viewtopic.php?p=26604#p26604
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