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Floating Versus Chassis Tied Light Relays In Off Position


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kellogs 
Member - Posts: 6
Member spacespace
Joined: August 17, 2021
Location: West Virginia, United States
Posted: June 03, 2023 at 5:35 AM / IP Logged Link to Post Post Reply Quote kellogs
For any vehicle, am I guaranteed to have a chassis connection on the + side of a light bulb when it is *not* lit ?
I am particularly interested in the rear turn/brake light bulb.
Thanks
i am an idiot 
Platinum - Posts: 13,680
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: June 03, 2023 at 7:41 PM / IP Logged Link to Post Post Reply Quote i am an idiot
LED lamps not necessarily. Incandescent lamps, it will be very close to ground (Through the element(s) of the bulbs attached to the wire.
Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB
kellogs 
Member - Posts: 6
Member spacespace
Joined: August 17, 2021
Location: West Virginia, United States
Posted: June 24, 2023 at 6:58 PM / IP Logged Link to Post Post Reply Quote kellogs
Just to clarify, I was referring to the GND connection marked "??". Is that "terminal" always grounded or can it also be left floating?
Thanks
Floating Versus Chassis Tied Light Relays In Off Position - Last Post -- posted image.
Ween 
Platinum - Posts: 1,366
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Joined: August 01, 2004
Location: Illinois, United States
Posted: June 25, 2023 at 6:17 PM / IP Logged Link to Post Post Reply Quote Ween
It can be left floating. Chrysler at one time wired their parking light relays with the 87a terminal grounded.

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