C1259 and C1310 still

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Steve 72, Jan 22, 2026 at 3:29 PM.

  1. Steve 72

    Steve 72 Junior Member

    Joined:
    Oct 5, 2023
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    Location:
    Maryland
    Vehicle:
    2007 Prius
    Model:
    Base
    Hi
    I replaced the inverter converter coolant pump today and no dice same codes same symptoms.
    Don’t want to continue shooting the parts cannon at it
    07 with 195K
    Any direction and help greatly appreciated
     
    #1 Steve 72, Jan 22, 2026 at 3:29 PM
  2. Brian1954

    Brian1954 Senior Member

    Joined:
    Jan 31, 2021
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    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    Codes C1259 and C1310 mean that there is a trouble code reported by the hybrid vehicle control ECU. The scanner that you are using is not capable of communicating with the hybrid vehicle control ECU. You need a better scanner to read all the trouble codes that the car is trying to tell you about. You are just guessing what the problem is until you read the trouble code(s) that are in the hybrid vehicle control ECU.

    What are the symptoms the car has?
     
    #2 Brian1954, Jan 23, 2026 at 10:41 AM
    Last edited: Jan 23, 2026 at 10:46 AM
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