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SAE vs. Toyota nomenclature

Discussion in 'Gen 3 Prius Main Forum' started by ez123re, Aug 31, 2024 at 10:02 PM.

  1. ez123re

    ez123re New Member

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    Location:
    Arlington, TX
    Vehicle:
    2014 Prius
    Model:
    IV
    Seems like the SAE uses generic names in its OBD2 error codes, and manufacturers may use more customized names for the same things. I have a U0110 error code for both the Cruise Control and Hybrid Control, "Lost Connection With Drive Motor Control Module." I also have errors C1259 and C1310 for the brakes. Because brakes interact with the drive motor during regenerative braking, it makes sense that the drive motor control module could cause brake-related errors, so that module is my prime suspect.

    Next problem: to identify and locate the drive motor control module in the vehicle. I have yet to locate any relevant information online. I called the Toyota dealership, where the service department transferred me to the parts department. The parts guy says he has no listing for a part by that name. So what Toyota name does it go by?
     
    #1 ez123re, Aug 31, 2024 at 10:02 PM
  2. Tombukt2

    Tombukt2 Senior Member

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    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    In the generation 3 you're going to probably wind up down the rabbit hole changing both of the brake parts on the firewall like Toyota recommends. When the stuff starts failing there can be communication errors with other computers in the car just seemingly how it works I don't think you're looking to change computers and that sort of thing I think you're going to find your actuator and the other piece maybe having problems and then that causes the communication issues when they're not working properly or something along those lines Make sure you're using a very capable scanner so you can communicate with the whole can bus system I guess that is pretty important for this model vehicle.
     
    #2 Tombukt2, Sep 1, 2024 at 9:53 AM
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