Prius Gen3 - DA4 wiring connector location?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by David Gimson, Dec 28, 2021.

  1. David Gimson

    David Gimson New Member

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    Does anyone know where the DA4 connector is on the Prius gen3? I have been having electrical problems with a few of the wires passing through it. I had to replace my MG2 temp sensor wiring and now I am getting 'No oil pressure'. Both of these circuits go through this DA4 connector.
     
    #1 David Gimson, Dec 28, 2021
  2. Elektroingenieur

    Elektroingenieur Senior Member

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    I couldn’t find a connector called “DA4” in the Electrical Wiring Diagram (more info) for 2010 Prius cars. The circuits for the engine oil pressure switch assembly and the MG2 temperature sensor go through DA1, which is one of two wire-to-wire connections between the engine wire (D) and engine room main wire (A). The other is DA2, and both are under the engine room junction block on the left side (U.S. driver’s side) of the engine compartment.
     
    #2 Elektroingenieur, Dec 28, 2021
  3. David Gimson

    David Gimson New Member

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    Thanks. Looking again it is DA1. Is this juction block the fuse box?
    Thanks. Yes, the DA1. Do you know if the Junction Block is part of the fuse and relay box?
     
    #3 David Gimson, Dec 29, 2021
  4. ChapmanF

    ChapmanF Senior Member

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    #4 ChapmanF, Dec 29, 2021
  5. David Gimson

    David Gimson New Member

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    Thanks!
     
    #5 David Gimson, Dec 30, 2021
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