1. Attachments are working again! Check out this thread for more details and to report any other bugs.

1st Gen 2001 engine codes?

Discussion in 'Generation 1 Prius Discussion' started by karoo, Jun 11, 2009.

  1. karoo

    karoo first time owner

    Joined:
    Aug 9, 2008
    17
    4
    3
    Location:
    LArgo Florida 33771
    Vehicle:
    2001 Prius
    Hello every one!

    Have had my used 2001 Prius for a little over a year now. 95,112 miles on her. Naturally love it! I live in Florida. Does anyone know how to check engine codes? My check engine light came on two days ago. I have never worked on these cars before. I have done all my work on all my other vehicles before. Motorcycles two stroke and four single and multis. Vans, trucks and yes even cars.

    Is it possible to check engine codes without buying one of those ScanGauges or other devices? Is there some sequence of buttons or throttle / ignition key routines we can use to check them with an existing indicator in the vehicle?

    Many thanks for any replies in advance!

    Karoo
     
    #1 karoo, Jun 11, 2009
  2. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    45,024
    16,242
    41
    Location:
    Canada
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    *Moved to Gen I Prius Forum*
     
    #2 Tideland Prius, Jun 11, 2009
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,200
    6,482
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    Scan Gauge and other generic OBD-II devices will not reliably retrieve the DTC logged by your Prius because multiple ECUs can produce DTC.

    The best solution is for you to visit your Toyota dealer and pay for one hour of labor to determine DTC and propose a diagnosis.

    The next best solution is for you to buy a used Ecrostech miniscanner (if you can find one offered for sale) which will display DTC logged by the engine, hybrid vehicle, and traction battery ECUs. This is not a complete list of ECUs that might produce DTC but those three are the most likely to generate DTC of importance.
     
    #3 Patrick Wong, Jun 11, 2009
  4. j_sooner

    j_sooner New Member

    Joined:
    Jun 13, 2007
    8
    1
    0
    Location:
    Nashville, TN
    Vehicle:
    2001 Prius
    Hello,
    I have used my PC and ELM327 with ODBII free software (odb2crazy dot com )
    It can address HV ECU, Battery ECU and another one (I can remember rightnow.))

    I have the ATSH instruccions to query each one for DATA..
    And this tool allows to scan from 01 to FF.

    I dont have my ODBII note book with me, where I have logged my findings..
    If you are familliar with old TEXT modems, AT commands you will be able to figure it out quick..

    So far, I have retrived my error code P3009, but no sub codes yet..
    Have Fun,,
    j.
     
    #4 j_sooner, Jun 15, 2009
(You must log in or sign up to post here.)