Diprocal EGT gauge light dosent work, Just installed at a shop over an hour away but closed when I picked it up. Need Help, checked wires, seem right at the back of gauge, Is there a serviceable bulb ???? Don't want to have to take it back.

 

Where is the ground?

 

Got to find it tomorrow, the other two gauges light up in the A pillar fine only the EGT dosent light up, would they most likely have the same ground?

 

Maybe it doesn't have bulb in it?

 

U checked the wires at the gauge, but did u check the ground and the wire to the illum fuse to make sure there in place?

 

I would think that they used a common hot and ground to feed al 3 lights check the bulb and then check the socket for power and ground . If you are missing power or gound at the socket work back from there. Are the other two lights on with the key or are they switched on with the headlights?