OP
OP
angel.arteaga
Member
OK, for everyone that is having this problem, i did something last night that fixed the issue, here it goes:
What I figured was that either the GND or the switched 12v was dropping when pushed manually, so i dropped down the front roof console on my tahoe and tested the two wires that went into the bulb connector, it was a yellow and a black wire, I did this on the front passenger side bulb, but in my opinion it shouldnt matter if it is done on the drivers side bulb, so i tested those two wires with the volt meter, and sure enough, the black wire is the positive and the yellow wire is the negative, the voltage was dropping down from 12v to 8v on the black wire when pushed on manually for some unknown reason. SOOOOO, my initial thought was that I would have to install an SPDT Relay on each manual switch on all roof domelights to help push the voltage when switched on, so I installed the relay on the front passenger side bulb switch and to my surprise, with that one relay now all the LEDs come on nice and bright when switched on...... So here is how i installed the relay............
Terminal 86 - GND
Terminal 87 - Constant 12v
Terminal 87a - Not Used
Now here is what I did for terminals 30 and 85 on the relay, Like i said before, when i dropped down my front roof console where the front domelights are, each switch button has a black wire and a yellow wire going from the switch button to the bulb, on my truck the black wire was the positive and the yellow wire was the negative, so I cut the BLACK WIRE, and connected the side that is comming from the vehicle side to Terminal 85 on the relay, and the wire that comes from the bulb side to Terminal 30 of the relay.
Note: I did get the Constant 12v for terminal 87 from that same dome light area, im not sure if it makes a difference if it is gotten from somewhere else.
So i did this and now all LEDs work perfectly fine, However, when all the LEDs turn on by an open door or from the driver side main domelight switch, you will hear the relay clicking in a wierd manner when they turn off. Also, you will notice that the bulb u install the relay on will turn off first, followed by the rest of the LEDs. This is what i did for my 03 tahoe, im pretty sure it will be the same procedure and same wiring diagram for all models 03-06, but if you all want to try this frist verify everything i said with a volt meter.
---------- Post added at 12:20 PM ---------- Previous post was at 12:16 PM ----------
Feel free to ask me any questions.
What I figured was that either the GND or the switched 12v was dropping when pushed manually, so i dropped down the front roof console on my tahoe and tested the two wires that went into the bulb connector, it was a yellow and a black wire, I did this on the front passenger side bulb, but in my opinion it shouldnt matter if it is done on the drivers side bulb, so i tested those two wires with the volt meter, and sure enough, the black wire is the positive and the yellow wire is the negative, the voltage was dropping down from 12v to 8v on the black wire when pushed on manually for some unknown reason. SOOOOO, my initial thought was that I would have to install an SPDT Relay on each manual switch on all roof domelights to help push the voltage when switched on, so I installed the relay on the front passenger side bulb switch and to my surprise, with that one relay now all the LEDs come on nice and bright when switched on...... So here is how i installed the relay............
Terminal 86 - GND
Terminal 87 - Constant 12v
Terminal 87a - Not Used
Now here is what I did for terminals 30 and 85 on the relay, Like i said before, when i dropped down my front roof console where the front domelights are, each switch button has a black wire and a yellow wire going from the switch button to the bulb, on my truck the black wire was the positive and the yellow wire was the negative, so I cut the BLACK WIRE, and connected the side that is comming from the vehicle side to Terminal 85 on the relay, and the wire that comes from the bulb side to Terminal 30 of the relay.
Note: I did get the Constant 12v for terminal 87 from that same dome light area, im not sure if it makes a difference if it is gotten from somewhere else.
So i did this and now all LEDs work perfectly fine, However, when all the LEDs turn on by an open door or from the driver side main domelight switch, you will hear the relay clicking in a wierd manner when they turn off. Also, you will notice that the bulb u install the relay on will turn off first, followed by the rest of the LEDs. This is what i did for my 03 tahoe, im pretty sure it will be the same procedure and same wiring diagram for all models 03-06, but if you all want to try this frist verify everything i said with a volt meter.
---------- Post added at 12:20 PM ---------- Previous post was at 12:16 PM ----------
Feel free to ask me any questions.
Last edited:
