Side mirror turn signal lights

Discussion in 'Gen 4 Prius Accessories and Modifications' started by Elektroingenieur, Jan 8, 2017.

  1. Elektroingenieur

    Elektroingenieur Senior Member

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    The taillights, parking lights, and license plate lights (plus internal illumination) are switched separately from the headlights, as shown in the partial schematic for the light control switch that I posted in another thread:

    Gen 4 Prius "Maintenance" mode | PriusChat

    The headlight dimmer switch assembly is connected to input terminals of the Main Body ECU, which has output terminals going to the headlight assemblies and to several relays (TAIL, H-LP LH, H-LP RH, H-LP SHADE), all shown in the “Headlight” and “Illumination, Taillight” pages of the System Circuit section of the Electrical Wiring Diagram, available by subscription to techinfo.toyota.com.

    The TAIL and PANEL circuits, controlled by the TAIL relay, provide switched +12 V to several junction connectors; just the diagram for those runs to seven pages, which is more than I’m able to post here.
     
  2. randomwalk101

    randomwalk101 DYI'er

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    Urghh. Okay thanks....but which wire to tap into again? lol
     
  3. randomwalk101

    randomwalk101 DYI'er

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    Wow I ordered the light coming from Japan last Friday and it was shipped out yesterday (Sunday for us but Monday for Japan). Today tracking said it’s in Chicago. Looks like it’ll be here in a couple days. That’s FAST!!!
    that’s faster than some stuffs I ordered from US sellers.
    I also ordered a black steering wheel appliqué from China over three weeks ago. It’s still going...lol
     
  4. bobthejedi

    bobthejedi Active Member

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    Just keep in mind if you go that route, you'll have to provide your own cabling between the lamps and ECU, the mid connector between the door and body might be interesting to bypass, I think you could sneak a few wires through without using the connector pinout.

    I think getting this third party part is much cheaper and easier given all the parts
     
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  5. randomwalk101

    randomwalk101 DYI'er

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    Got the lights today. Wow, 3 days shipping time. Coming straight from Japan. Unreal.
    Looks like it’ll be a busy weekends :)
     
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  6. bobthejedi

    bobthejedi Active Member

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