Will I damage my diesel glow plug circuit while going into OBD test mode, HELP needed please

[sheffieldyorky]

As the title says will I damage my diesel glow plug circuit while going into OBD test mode?
I seem to remember reading many years ago that leaving the diesel ignition on for any length of it would damage the glow plug circuit
Once I plug in the OBD I am required to turn the ignition on, then it communicates with the ODB dongle
Can anybody please shed some light on this please?

 

[NHN]

Not at all afaik, glowplugs are based on temps, given the current weather they wont even activate tbh, only winter they heat the cylinders for a small period of time, then they switch off, never heard of obd tests affecting them.

 

[sheffieldyorky]

Not at all afaik, glowplugs are based on temps, given the current weather they wont even activate tbh, only winter they heat the cylinders for a small period of time, then they switch off, never heard of obd tests affecting them.

Hi there
Many thanks for that, would I be right in saying that many years ago it was the case, or am I just reading too much into it