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Thread: Wiring Harness

  1. 07-07-2019, 01:41 PM #1
    Simonjjb
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    Wiring Harness

    I have managed to clean and sort and label all of the harnesses from my 71S, with one exception. In the picture below is a harness from inside the front trunk up near the gauges. It has 4 ends to it:

    1: Brown/Wht wire that connected to Oil Temp Gauge - with a supplemental connection

    2 : Male ends - 1 Brown wire and another with 2 Brown/Wht wires - Neither connected when I purchased the car

    3 : Male ends with covers - 1 x Brown and 1 x Brown/wht - unsure what these were connected to

    4 : Grounding ring for Brown wires

    Any help understanding function of 2 and 3 would be appreciated. Thanks. Simon

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    1968 911L Coupe - Golden Green
    1971 911S Coupe - Gemini Blue
    1973 911S Targa - Signal Yellow
    1974 914 2.3 - Sunflower Yellow
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  2. 07-07-2019, 01:50 PM #2
    edmayo
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    Looks to me like those female spade in last picture have shrink tube covering the ends, that would mean they were never used.
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  3. 07-07-2019, 02:00 PM #3
    Simonjjb
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    Quote Originally Posted by edmayo View Post
    Looks to me like those female spade in last picture have shrink tube covering the ends, that would mean they were never used.
    I should have mentioned that I covered them when I purchased the car.
    1968 911L Coupe - Golden Green
    1971 911S Coupe - Gemini Blue
    1973 911S Targa - Signal Yellow
    1974 914 2.3 - Sunflower Yellow
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  4. 07-07-2019, 03:04 PM #4
    edmayo
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    There are three connections on the back of the temp ga. + is power red or blu/ yel, GA to sender, would have been green /blk, and - for ground, a brown wire. So did this harness connect to the - terminal? Any options on the car? Not recognizing the harness.
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  5. 07-07-2019, 06:29 PM #5
    Simonjjb
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    Quote Originally Posted by edmayo View Post
    There are three connections on the back of the temp ga. + is power red or blu/ yel, GA to sender, would have been green /blk, and - for ground, a brown wire. So did this harness connect to the - terminal? Any options on the car? Not recognizing the harness.
    Yes, I believe it connected to the negative. No special options. No AC.
    1968 911L Coupe - Golden Green
    1971 911S Coupe - Gemini Blue
    1973 911S Targa - Signal Yellow
    1974 914 2.3 - Sunflower Yellow
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  6. 07-08-2019, 12:40 AM #6
    Reuben L
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    Brake hydraulic failure warning/ parking brake light circuit? that circuit also connects to the oil warning light. not certain though.
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  7. 07-08-2019, 02:59 PM #7
    Simonjjb
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    Quote Originally Posted by Reuben L View Post
    Brake hydraulic failure warning/ parking brake light circuit? that circuit also connects to the oil warning light. not certain though.
    Yes ! I looked at my pictures and its clear that #3 (Two covered females) connect to the Master Cylinder. Thanks. So that just leaves the two other female ends that were not connected when I purchased the car
    1968 911L Coupe - Golden Green
    1971 911S Coupe - Gemini Blue
    1973 911S Targa - Signal Yellow
    1974 914 2.3 - Sunflower Yellow
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  8. 07-08-2019, 07:26 PM #8
    Richy
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    The brown white connects to the e-brake warning light .
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