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Looking for help for troubleshooting Switch-Pros SP9100

Discussion in '2.5 Gen Tundras (2014-2021)' started by brkncly, Apr 17, 2025.

  1. Apr 17, 2025 at 12:00 PM
    #1
    brkncly

    brkncly [OP] New Member

    Joined:
    Feb 3, 2022
    Member:
    #74071
    Messages:
    246
    Gender:
    Male
    Oregon
    I noticed that my Switch-Pros isn’t working properly in my 2020 CrewMax. After driving awhile, I’m not able to turn on anything, unless I have my phone hooked up to it via Bluetooth. So I check the ignition fuse under the hood and getting good constant voltage. So I have the blue wire from the Switch-Pros hooked up to the 10 amp ignition circuit with a 5 amp Add-A-Fuse , I have the white wire from the Switch-Pros hooked up to the 10 amp LED RL circuit with a 10 amp Add-A-Fuse and then the pink wire from the Switch-Pros hooked up the LED LH circuit. All three wires are hooked up to the fuse box under driver side. The weird thing is that when I pull into the gargage my auto headlight, parking lights etc, comes on everying works fine, then when I pull out of the garage into daylight everything shuts off. It works fine when it’s dark outside and the lights on but I have to have it hooked up to Bluetooth in order for it to work. Looking for any help please. Thanks

    Switch-Pros Under Hood Fuse .jpg
     
  2. Apr 24, 2025 at 8:01 AM
    #2
    Switch-Pros

    Switch-Pros New Member

    Joined:
    Apr 24, 2025
    Member:
    #133953
    Messages:
    1
    Hello,

    If it working when you pull into the garage and your auto headlights come on and also working at night when your headlights are on it sounds like the fuse you are tapped into with the ignition wire may be related to the auto headlights in some way.

    There are three LEDs on the power module next to the four pin connector, when it is not working what ones are lit up?
     
    bulldog93 likes this.

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