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2001 prius has ac but no heat

Discussion in 'Generation 1 Prius Discussion' started by Lakisback35, Sep 25, 2024 at 8:07 PM.

  1. Lakisback35

    Lakisback35 New Member

    Joined:
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    Location:
    Massachusetts
    Vehicle:
    2001 Prius
    Model:
    ----USA----
    Hi everyone, I have a 2001 prius with ac but no heat, it hasn't had heat since I bought it nearly 4000 miles ago. I checked the two metal hoses for the heater core by removing the glovebox (pictured) and they read about 89-95°f but beyond that I have no idea what to look for. If there's diagrams I could look at or ideas anyone has they would be greatly appreciated!
     

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    #1 Lakisback35, Sep 25, 2024 at 8:07 PM
  2. ronlewis

    ronlewis Active Member

    Joined:
    Dec 5, 2016
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    Location:
    texas
    Vehicle:
    2001 Prius
    Model:
    One
    check your coolant level. No coolant, no heat.
     
    #2 ronlewis, Sep 26, 2024 at 1:32 PM
  3. Lakisback35

    Lakisback35 New Member

    Joined:
    Jul 27, 2024
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    Location:
    Massachusetts
    Vehicle:
    2001 Prius
    Model:
    ----USA----
    Coolant level is normal on the engine side.
     
    #3 Lakisback35, Sep 26, 2024 at 6:12 PM
  4. ChapmanF

    ChapmanF Senior Member

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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Any trouble codes from the HVAC system? In a gen 1, you won't see those on an OBD code scanner, but only by counting the blinks as described here (scroll down to the heat/air conditioning system part).

    Blink (a/k/a Flash) Codes – How to. | PriusChat

    Also, you can look on the other side (driver's side) of the HVAC box, just by sticking your head down where your feet go, to check whether you see the white linkage of the temperature blend door move from one end to the other as you twist the temperature dial from above the current cabin temperature to below.
     
    #4 ChapmanF, Sep 26, 2024 at 6:24 PM
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