Map light/dome light 95 f150 XL Single cab
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Mountain Pass
Joined: Jun 2011
Posts: 235
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From: South Texas
Map light/dome light 95 f150 XL Single cab
Poked around a bit and checked a few things, but am curious if any one has more insight.
Map lights do not work at all. Dome light comes on with the headlight switch and with the passenger door ajar. Neither dome, nor cargo lights come on with the driver door open. All connections are clean from the fuse box to the dome, wires are neatly electrical taped. I swapped the passenger door switch to the driver side one with no change. The only thing left that I can think of is the relay with a bunch of electrical tape connecting the wires to it under the dash, above the pedals. Would a bad relay only affect the driver door, or am I missing something?
Map lights do not work at all. Dome light comes on with the headlight switch and with the passenger door ajar. Neither dome, nor cargo lights come on with the driver door open. All connections are clean from the fuse box to the dome, wires are neatly electrical taped. I swapped the passenger door switch to the driver side one with no change. The only thing left that I can think of is the relay with a bunch of electrical tape connecting the wires to it under the dash, above the pedals. Would a bad relay only affect the driver door, or am I missing something?
Cargo Master
Joined: Mar 2003
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Did you check continuity of the wires and probe around with a test light?
There is a power lead for the map lights (always hot) and a separate one for the dome light (switched).
Quite often the wires that runs along the drivers threshold gets corroded right about where it starts to go vertical near the drivers seat belt.
If I remember correctly the green wire is usually the culprit.
Here is a wiring diagram for a 93 Bronco but probably very similar to your truck.
Courtesy of Steve83:
There is a power lead for the map lights (always hot) and a separate one for the dome light (switched).
Quite often the wires that runs along the drivers threshold gets corroded right about where it starts to go vertical near the drivers seat belt.
If I remember correctly the green wire is usually the culprit.
Here is a wiring diagram for a 93 Bronco but probably very similar to your truck.
Courtesy of Steve83:
Fleet Mechanic
Joined: Jan 2013
Posts: 1,305
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"Quite often the wires that runs along the drivers threshold gets corroded right about where it starts to go vertical near the drivers seat belt."
x2 ... on mine the compromised wire was about the middle of the sill section. a lot of sand and grit collects under there after 25 years or so.
x2 ... on mine the compromised wire was about the middle of the sill section. a lot of sand and grit collects under there after 25 years or so.
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Mountain Pass
Joined: Jun 2011
Posts: 235
Likes: 18
From: South Texas
Getting constant 12v from the LG/Y wire from this connector by the pedals. Continuity test shows no connection from this point, to the connection behind the seat that goes up to dome/maps. Wires on the floor are all good, no fraying or corrosion.
Fleet Mechanic
Joined: Jan 2013
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to my surprise, the break on mine was INSIDE that connection where you have 3 green in and 1 green out.
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Mountain Pass
Joined: Jun 2011
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From: South Texas
I am thinking that's where it is. Did you cut it out and splice, or were you able to cut it open?
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Mountain Pass
Joined: Jun 2011
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From: South Texas
Thanks!
Slick LEDs. Now I can find all the freedom I drop.
Last edited by Pyroneer; Jun 3, 2018 at 11:25 PM. Reason: Forums are hard.
New User
Joined: Dec 2009
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Hi All. Sorry for digging up and old post but is this splice in the drivers door sill? I am working on my Broncos dome light, it doesn't come on with the drivers door open.
Thank you.
Thank you.
New User
Joined: Dec 2009
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UPDATE - On a 92 Bronco custom the splice is very close to where the seatbelt bolts to the floor. The splice was broken in half so I put it back together and the dome light comes on when the drivers door opens! My parents bought the truck in 98 with 40k miles and they just reminded me it never worked.
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