ad41p glow plug on while running

[ptclabs.jp]

Everything works, just the light is on. AD41p do not even have glow plugs so i am at a loss. The starter solinoid was changed was the only new thing on it. Anyone have any ideas what would turn that light on at all as it has no preheat system?

 

[alldodge]

I'm finding that the AD41P does not normally come with glow plugs but it can be added with a Kit sold by VP.

Item 16 is the Relay, Item 17 (there are 4) are glow plugs (page 38)
The relay is energized by power being applied to pin 6 on Orange wire

The wiring manual link
https://www.scribd.com/document/336168663/Volvo-Penta-31-32-41-42-43-44-300-Series-Wiring-Diagrams