Ecumaster forum

I want to make sure I don't burn up the sensor or ECU.
Laminated card for 4.9 sensor shows
WBO Ip
WBO VGND
WBO Heater
WBO Heater +
WBO Rcal
WBO Vs
All pins labeled the same except I don't see a pin for WBO VGND. WBO Vs/Ip is the only open pin left. Does VGND go to Vs/Ip?

Took a gamble. Attached to that pin. All good.

LSU 4.9 (mirror connection of LSU4.2)
1 -------- B19 (WBO IP)
2 -------- B33 (WBO VGND)
3 -------- G19 (WBO HEATER)
4 ------- FUSED +12V
5 -------- B22 (WBO RCAL)
6 -------- B6 (WBO VS)

LSU 4.2
1 -------- B6 (WBO VS)
2 -------- B22 (WBO RCAL)
3 -------- FUSED +12V
4 -------- G19 (WBO HEATER)
5 -------- B33 (WBO VGND)
6 -------- B19 (WBO IP)

I dont remember about laminated diagram, but in sw Help>Device connectors all pins named correctly.