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Home >> Lexus >> 2016 >> ES 300h >> Repair and Diagnosis >> Electrical >> Starter >> Smart Access System (For Start Function) (Diagnostics - Introduction) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) >> DTC Check / Clear [07/2015 - ] >> DTC Check / Clear [07/2015 - ]

DTC Check / Clear [07/2015 - ]

HINT: 

If the Techstream is connected to the vehicle with the power switch off, the information stored in smart access system with push-button start related ECUs cannot be read. However, smart access system with push-button start DTCs and Data List information can be confirmed even if the power switch is off using the following method:

  1. CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) [POWER SOURCE CONTROL]) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Power Source Control / DTC.
    5. Check for DTCs.

      HINT: 

      Refer to the Techstream operator's manual for further details.

  2. CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) [SMART ACCESS]) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Smart Access / DTC.
    5. Check for DTCs.

      HINT: 

      Refer to the Techstream operator's manual for further details.

  3. CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) [POWER SOURCE CONTROL]) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Power Source Control / DTC / Clear.
    5. Clear the DTCs by following the directions on the Techstream display.

      HINT: 

      Refer to the Techstream operator's manual for further details.

  4. CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) [SMART ACCESS]) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Smart Access / DTC / Clear.
    5. Clear the DTCs by following the directions on the Techstream display.

      HINT: 

      Refer to the Techstream operator's manual for further details.