Sp3 Wiring In Colour Finished

Discussion in '851 / 888' started by RON, Feb 19, 2021.

  1. As requested by SP3 owner, the diagram is done in colour. Direct from the manual with a few things moved for clarity. The myriad of wire into and out of the ECU have been omitted for clarity too. Any probs let me know
    Regards Ron

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  2. Apologies for resurrecting an old post. First of all thank you to the OP for creating this. I found it incredibly helpful. I think there may be a small error for the wiring to the front headlight. Is the yellow and black wire for high beam instead of low? The reason I say this is because that same yellow and black wire goes to the high beam dash light indicator. If I am correct, the white is low beam and yellow/black is high beam (I think). Below is a pic from my 851 workshop manual. Assuming the wires to the headlight bulb is in the same position as a standard H4 bulb, then the middle position is for low beam, which according to the pic is white.

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    #2 tboooe, Oct 26, 2025 at 9:55 PM
    Last edited: Oct 26, 2025 at 10:01 PM
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