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Engine Compartment Junction Block Unit B empty?

Discussion in 'Gen 2 Prius Technical Discussion' started by Hman, Oct 18, 2008.

  1. Hman

    Hman Petrophobe

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    There seems to be an empty fuse strip marked unit B, yet my manual makes no mention of it. Anyone know what this is for?
     
    #1 Hman, Oct 18, 2008
  2. jelloslug

    jelloslug It buffed right out!

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    It's not empty, it's just a junction block. If you pull it out there are 2 connectors hooked to it on the underside.
     
    #2 jelloslug, Oct 20, 2008
  3. Hman

    Hman Petrophobe

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    Is this a good place to tie into switched 12v power for an accessory fuse?
     
    #3 Hman, Oct 20, 2008
  4. jelloslug

    jelloslug It buffed right out!

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    No, not at all. If you need a switched 12v source there is an empty tap on the relay/junction block to the left of the steering column.
     
    #4 jelloslug, Oct 21, 2008
  5. Hman

    Hman Petrophobe

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    There are no empty taps listed in the Bentley repair manual. The 10 amp seemingly "extra" fuse used for a rear fog light in Japan has no power to it. Are you talking about relay panel 2 on the cowl?
     
    #5 Hman, Oct 25, 2008
  6. jelloslug

    jelloslug It buffed right out!

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    They are not listed but they are there. The panel I'm referring to is under the dash. If you remove the lower panel under the steering column and then remove the metal panel cover you will see 2 male connections in the middle of the junction block. The upper one is switched.
     
    #6 jelloslug, Oct 27, 2008
  7. Hman

    Hman Petrophobe

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    Thanks, you're right, but I'm seeking a switched power source in the engine compartment. The engine compartment block seems to have an unmarked 25A fuse but there is no power to it. There is a 30 amp fuse for a stereo power amp (I don't have) but the manual says it also feeds the multi-display. My accessory doesn't draw much power, but I was hoping to find a clean tap point.
     
    #7 Hman, Oct 28, 2008
  8. jelloslug

    jelloslug It buffed right out!

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    Well, the fuse panel can be disassembled so you can access the underside. You could then add another circuit to one of the blank fuse locations and then run the circuit out to where needed it.
     
    #8 jelloslug, Oct 28, 2008
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