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    2015 Denali LED Illuminated Running Boards

    Thanks Vishnu. When I used chassis ground as you suggested it worked with the Courtesy lights. I can also confirm what you saw with the puddle lights. My vehicle did not come with them either and they seem to have disabled pin 8. I measure only 6 Volts rather than the 12V I expected, which won't...
  2. T

    2015 Denali LED Illuminated Running Boards

    What pin did you use for GND? I tapped into Pin 8 for PudLit + and Pin 1 (black and white wire) for GND, but the voltage I get between those pins is 6V when puddle lights should be activated and -6V when not. I was expecting 12V and 0V, so I am thinking PIN 1 is actually another control signal...

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