How To Proceed With Troubleshooting [05/2014 - ]

2015 Scion FR-S Automatic TransSECTION How To Proceed With Troubleshooting [05/2014 - ]

HINT: 

  • Use the following procedure to troubleshoot the lighting system.
  • *: Use the Techstream.
  1. VEHICLE BROUGHT TO WORKSHOP 

    NEXT: Go to next step 

  2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 

    NEXT: Go to next step 

  3. INSPECT BATTERY VOLTAGE 
    1. Measure the battery voltage with the ignition switch off.

      Standard Voltage

      11 to 14 V

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

      NEXT: Go to next step 

  4. CHECK FOR DTC* 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR [05/2014 - ] .

      Result

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

      B → Go to step 7 

      A: Go to next step 

  5. PROBLEM SYMPTOMS TABLE 
    1. Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE [05/2014 - ] .

      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 7 

      A: Go to next step 

  6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST [05/2014 - ] 
    2. Terminals of ECU. Refer to TERMINALS OF ECU [05/2014 - ] 

      NEXT: Go to next step 

  7. ADJUST, REPAIR OR REPLACE 

    NEXT: Go to next step 

  8. CONFIRMATION TEST 

    NEXT → END 

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.