Volkswagen Heater: Difference between revisions

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VW heater P/N are:
[[File:VW heater.jpg|thumb]]
==General Information==
 
===Operating Voltage and Conditions ===
????
 
===Pinout ===
 
 
HV connector HVA 280 KEY_E from TE
* +HV near to the body,
 
*-HV far from the body
 


* 3Q0963231A
LV Connector 1J0973714
* 3Q0963231C
* 3Q0963231E
[[File:VW heater.jpg|thumb]]


LIN messages for the water heater: 
* Pin 1 is permanent 12V
* Pin 2 is GND
*Pin 4 is LIN


The feedback comes on ID48. 
==LIN Bus Communication ==


Byte 0 is power. 13 for 770W, 26 for 1540W 
  {| 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
|-
|28
|Control, every 50ms
|2
|??
|Power
| Last bit: Start/Stop
|
|
|
|
|
|
|-
|48
|Feedback
|8
|??
|Power:
13 = 770W


Byte 6 and 7 are temp in and temp out  
26 = 1540W
|??
|??
|??
|??
|??
|Temperature in
|Temperature out
|}


ID28 is sent for control, every 50ms


Byte 0 is power, last bit of byte 1 starts and stops
==Part Numbers==


VW heater P/N are:


*3Q0963231A
*3Q0963231C
*3Q0963231E


HV cable P/N is 3Q0971475 or 5Q0971475.


LV connector looks like it is Webasto 1J0973714 8P type.




HV connector HVA 280 KEY_E from TE


* +HV near to the body,


* -HV far from the body
HV cable P/N is 3Q0971475 or 5Q0971475.


LV connector looks like it is Webasto 1J0973714 8P type.


LV Connector 1J0973714
==References==
<references />


* Pin 1 is permanent 12V
[[Category:OEM]]
* Pin 2 is GND
[[Category:VAG]]
* Pin 4 is LIN
[[Category:HVAC]]

Revision as of 09:11, 29 June 2022

VW heater.jpg

General Information

Operating Voltage and Conditions

????

Pinout

HV connector HVA 280 KEY_E from TE

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


LV Connector 1J0973714

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

LIN Bus Communication

Control and Answer Messages from/to Heater[1]
ID Description Length Checksum Type Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
28 Control, every 50ms 2 ?? Power Last bit: Start/Stop
48 Feedback 8 ?? Power:

13 = 770W

26 = 1540W

?? ?? ?? ?? ?? Temperature in Temperature out


Part Numbers

VW heater P/N are:

  • 3Q0963231A
  • 3Q0963231C
  • 3Q0963231E




HV cable P/N is 3Q0971475 or 5Q0971475.

LV connector looks like it is Webasto 1J0973714 8P type.

References

  1. ↑ https://openinverter.org/forum/viewtopic.php?p=26604#p26604
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