Trouble Code $7EA

Discussion in 'Gen II Prius Care, Maintenance and Troubleshooting' started by jont, Jan 1, 2013.

  1. jont

    jont Junior Member

    Joined:
    Feb 2, 2008
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    Saskatoon
    Vehicle:
    2004 Prius
    I have a 2004 Prius with 120,000 miles. Engine light came on. Code reader indicates 'Control Module' $7EA and $7EB. Has anyone seen these codes and know what they mean? Any help would be appreciated...

    Thx
     
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    15,014
    3,748
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    Those DTC apparently are corrupted as they lack the correct format. A correct DTC will have an LNNNN format, where:

    L = P for powertrain, C for chassis, B for body, U for communications, as examples
    N = a hexadecimal character; 0-9, A-F are acceptable values
     
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  3. seckwielen

    seckwielen Member

    Joined:
    Aug 31, 2012
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    Florida
    Vehicle:
    2010 Prius
    Model:
    III
    Those are typically ECU addresses...... 7EA and 7EB are response addresses HVECU and the Traction Battery

    // ECUs
    // -- request/response
    // -- 7E0/7E8 for ECM (engine control module);
    // -- 7E1/7E9 for TCM (transmission control module).
    // -- 7E2/7EA for HVECU (Hybrid contol module)
    // -- 7E3/7EB for Traction Battery
    // -- 7E4/7EC
    // -- 7E5/7ED
    // -- 7E6/7EE
    // -- 7E7/7EF