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How To Proceed With Troubleshooting [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

HINT: 

  1. VEHICLE BROUGHT TO WORKSHOP 

    NEXT: Go to next step 

  2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK 

    NEXT: Go to next step 

  3. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage with the power switch off.

      Standard Voltage

      11 to 14 V

      If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

      NEXT: Go to next step 

  4. INSPECT CAN COMMUNICATION SYSTEM* 
    1. Use the Techstream to check if the CAN communication system is functioning normally.

      Result

      Result Proceed to
      CAN communication system DTCs are not output. A
      CAN communication system DTCs are output. B

      B → GO TO  CAN COMMUNICATION SYSTEM 

      A: Go to next step 

  5. CHECK FOR DTC* 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR [08/2013 - ] .

      Result

      Result Proceed to
      DTCs are not output. A
      DTCs are output. B

      B → Go to step   8 

      A: Go to next step 

  6. PROBLEM SYMPTOMS TABLE 
    1. Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE [08/2013 - ] .

      Result

      Result Proceed to
      Fault is not listed in Problem Symptoms Table. A
      Fault is listed in Problem Symptoms Table. B

      B → Go to step   8 

      A: Go to next step 

  7. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST [08/2013 - ] 
    2. Terminals of ECU. Refer to TERMINALS OF ECU [08/2013 - ] 

      NEXT: Go to next step 

  8. ADJUST, REPAIR OR REPLACE 

    NEXT: Go to next step 

  9. CONFIRMATION TEST 

    NEXT → END