Glow Plug illumination circuit
Posted: Mon Jan 25, 2016 10:57 pm
So I installed a manual glow plug actuator a while ago on my 95 l300. Real simple, I just ran the solenoid signal wire to 12v and put in a push button switch in between.
I'm thinking of taking this a step further and am going to install a toggle switch because holding down that stupid freezing cold button in -20 for 30 seconds is annoying. The only issue with using a toggle is the danger that you could bump the switch on and have your glow plugs activated without realizing it
this would not be good to say the least.
My solution to this would be to have the switch also trip the glow plug indicator on the instrument cluster so when the glow plugs are on so will the dash light.
I just wanted to ask if anyone had a schematic for the instrument cluster wiring so I would know which wire to tap! I can probably figure it out by poking around with 12v to various wires but I don't want to unnecessarily go risking any components in the IC.
Thanks for any help you can provide.
I'm thinking of taking this a step further and am going to install a toggle switch because holding down that stupid freezing cold button in -20 for 30 seconds is annoying. The only issue with using a toggle is the danger that you could bump the switch on and have your glow plugs activated without realizing it

My solution to this would be to have the switch also trip the glow plug indicator on the instrument cluster so when the glow plugs are on so will the dash light.
I just wanted to ask if anyone had a schematic for the instrument cluster wiring so I would know which wire to tap! I can probably figure it out by poking around with 12v to various wires but I don't want to unnecessarily go risking any components in the IC.
Thanks for any help you can provide.