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Home >> Lexus >> 2015 >> LS 460 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes P1603-U0319 & Circuit Tests) >> SFI System >> DTC U0319: Software Incompatible with Steering Effort Control Module or Internal Control Module EEPROM Error [10/2014 - ] >> Procedure
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DTC U0319: Software Incompatible with Steering Effort Control Module or Internal Control Module EEPROM Error [10/2014 - ]: Procedure

  1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC U0319) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG) and turn the Techstream on.
    3. Enter the following menus: Powertrain / Engine / Trouble Codes.
    4. Read the DTCs.
      RESULT

      Result Proceed to
      Only DTC U0319 is output A
      DTC U0319 and other DTCs are output B

      HINT: 

      If any DTCs other than U0319 are output, troubleshoot those DTCs first.

    B → See step   4 

    A: Go to next step 

  2. PERFORM SHIFT CONTROL SYNCHRONIZATION 
    1. Perform Shift Control Synchronization. Refer to REGISTRATION [10/2014 - ] - Step 2 .

    NEXT: Go to next step 

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC U0319) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG) and turn the Techstream on.
    3. Clear the DTCs. Refer to DTC CHECK / CLEAR [10/2014 - ] .
    4. Turn the engine switch on (IG) and wait for 3 seconds.
    5. Enter the following menus: Powertrain / Engine / Trouble Codes.
    6. Read the DTCs.
      RESULT

      Result Proceed to
      DTC is not output A
      DTC U0319 is output B

    B → See step   5 

    A → END 

  4. GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2014 - ] 
  5. REPLACE ECM. Refer to  REMOVAL [10/2014 - ]