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Thread: Power on 16 pin OBD1 (OBD2 type) connectors

  1. #1
    Fuel Injected! phonedawgz's Avatar
    Join Date
    Dec 2011

    Question Power on 16 pin OBD1 (OBD2 type) connectors

    Q1. Is there a standard switched power pin, or maybe something like a fuel pump voltage test pin that receives power on the 94 - 95 GM 16 pin (OBD2 type) OBD1 connector? If so which pin?

    Q2. Is there a standard unswitched - constant power pin on the 94 - 95 GM 16 pin (OBD2 type) OBD1 connector? If so which pin?

  2. #2
    Super Moderator
    Join Date
    Mar 2011
    Camden, MI
    GM implies pin 16 for constant +12V for the applications i checked.

    i'm not seeing any switched +12V though.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E

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