Simple dome light issue isn't simple!! Plz help!!!!

james'99 · Feb 26, 2015

xci.ed6 said:
usually you get one +12v, then the dome switch goes from ground or to door switches that ground. Any method it uses a fast check is this:

On the accord we have that:

far left

white/blue to a ground it should light, or you have a bad fuse (or power wire). Then go white/blue to green/red and it should light with any door open. If it does then you have a bad dome light. If it doesn't then you have a problem with the green/red before it splits to multiple doors.

Okay, that makes sense. Haven't ever pulled it apart. Sorry for my misinformation. The bolt ground would be that "third wire".

xci.ed6 · Feb 26, 2015

yup, that's why I said you'd have 2 or 3, sometimes they don't have a direct gnd, sometimes they do.

GOLDEN707 · Feb 26, 2015

The difference between the 2 or 3 pin is with or without sunroof. I was just out looking at all the wiring again n there's a blue wire from the alarm tapped in on the right side fuse box inna plug. Wen I wiggle that wire it makes the Dome light flicker if it's in the door position. So I unplugged it n it came on. But it wasn't full power. As if wiring was wrong or sumthin. But it still wouldn't work with the door. Wen I shut the door it would stay on. Lock the car with the alarm it would still stay on. But wen I unlocked it it would shut off then dim bak in..... ?? I also used a volt meter to test power n it's - 9volts. Something has to be back words or a positive wire touching ground somewhere possibly?

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james'99 · Feb 26, 2015

GOLDEN707 said:
The difference between the 2 or 3 pin is with or without sunroof. I was just out looking at all the wiring again n there's a blue wire from the alarm tapped in on the right side fuse box inna plug. Wen I wiggle that wire it makes the Dome light flicker if it's in the door position. So I unplugged it n it came on. But it wasn't full power. As if wiring was wrong or sumthin. But it still wouldn't work with the door. Wen I shut the door it would stay on. Lock the car with the alarm it would still stay on. But wen I unlocked it it would shut off then dim bak in..... ?? I also used a volt meter to test power n it's - 9volts. Something has to be back words or a positive wire touching ground somewhere possibly?

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Best thing is honestly to just trace the wire all the way through. Someone tapped it for something.

GOLDEN707 · Mar 1, 2015

I am going to attempt that soon. Took it to the place that installed my alarm n they don't know. They double checked everything n reconnected all their wiring to b sure. So it's still an unknown issue. Hopefully time next week I can trace all wires. And tips or idea's on how exactly I should do it?

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james'99 · Mar 1, 2015

Okay, so per the diagram I have, you want to check for a path to ground when the door is opened on the BLK/WHT wire. If it isn't present, you'll have to trace thewire back to the safety indicator circuit which is in the instrument panel. Check for continuity with a Ohm meter between both ends. Then, check for ground right at the gauge. You should have ground at the gauge considering that your dash indicates what doors are open.