LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2017 >> Yaris iA Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Lin Communication System - Diagnostic Codes >> Lin Communication System >> DTC U3000-44: Control Module data memory failure >> Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC U3000-44: Control Module data memory failure: Procedure

  1. VERIFY IF MALFUNCTIONING LOCATION IS POWER SOURCE CONTROL (POWER MANAGEMENT CONTROL ECU) DEPENDING ON REPEATABILITY 
    1. Clear the DTC for the power source control (power management control ECU) using the Techstream.

      Refer to DTC CHECK / CLEAR

      Body Electrical > Electric Supply Unit > Clear DTCs 

    2. Retrieve the power source control (power management control ECU) DTCs using the Techstream.

      Refer to DTC CHECK / CLEAR

      Body Electrical > Electric Supply Unit > Trouble Codes 

    3. Is the same DTC displayed?

    Yes 

    See step  3

    No 

    See step  2

  2. VERIFY IF OTHER DTCS DISPLAYED 
    1. Are any other DTCs displayed?

    No 

    DTC TROUBLESHOOTING COMPLETED. 

    Yes 

    REPAIR OR REPLACE THE MALFUNCTIONING PART ACCORDING TO THE APPLICABLE DTC TROUBLESHOOTING. 

    1. Refer to DIAGNOSTIC TROUBLE CODE CHART
  3. REPLACE THE POWER SOURCE CONTROL (POWER MANAGEMENT CONTROL ECU). 
    1. Refer to REMOVAL

    NEXT 

    See step  2