Join Date: Apr 2018
Location: Greensboro, NC
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Did that. It goes back to a Relay switch they installed. Going backwards - the on/off switch gets it power from the emergency break (had this idea to have them only operate when the brake is engaged...but find myself using the lights when driving). Anyway, the black wire is cut from the source (the relay)...it picks up at brake wire to the switch. The red wire is unbroken from the source and connects to the on/off switch. The red/black wire is tired to a black wire coming out of the relay. (Note - if I ground the black wire out of the relay the lights come on). There is a single red wire that comes off the underglow wires that is tapped onto a yellow wire which is connected to the relay. There is also a blue and white wire connected to the relay.
What color wires are connected to which numbers on the relay? 85. 86. 87. 30
85 Ground (Black)
86 Trigger/Switched 12v (Prob Blue White, aka remote)
87 12V Out/To UnderGlow
30 Constant 12v In (Prob Yellow)
More than likely, it wasnt getting power from the parking brake. It was completing the ground for the relay to operate.
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*2014 M6GT, Maxie G, stock as she can be.
*2009 Mazda 3 Sport - Sold
*1993 Mazda Protégé, Sell Pending*
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Last edited by 93blkongreenpro; 07-30-2018 at 02:26 AM.