How To Proceed With Troubleshooting

2009 Toyota Yaris Base, 4D Sedan, AutomaticSECTION How To Proceed With Troubleshooting

HINT:

  • The anti-lock brake system troubleshooting procedures are based on the premise that the CAN communication system is normally functioning. Check the CAN communication system first before troubleshooting the vehicle stability control system.
  • *: Use the Techstream.
  1. VEHICLE BROUGHT TO WORKSHOP 
  2. CUSTOMER PROBLEM ANALYSIS 
    1. Interview the customer and confirm the trouble.
  3. CHECK DTC AND FREEZE FRAME DATA* 
    1. Check and record DTC and Freeze Frame Data.
    2. Clear the DTC and Freeze Frame Data (See DTC CHECK/CLEAR  for DTC Check/Clear, or FREEZE FRAME DATA  for Freeze Frame Data).
    3. Reconfirm the DTC.
      1. Reconfirm the DTC based on the recorded DTC and Freeze Frame Data (See DTC CHECK/CLEAR  for DTC Check/Clear, or FREEZE FRAME DATA  for Freeze Frame Data).

        Result 

        RESULT CHART

        Result Proceed to
        DTC output A
        DTC not output (Problem symptom does not occur) B
        DTC not output (Problem symptom occurs) C

        B: GO TO STEP  5

        C: GO TO STEP  6

        A: Go to next step 

  4. DIAGNOSTIC TROUBLE CODE CHART 
    1. Proceed to DIAGNOSTIC TROUBLE CODE CHART  .

      NEXT: GO TO STEP  7

  5. SYMPTOM SIMULATION 
    1. Proceed to CHECK FOR INTERMITTENT PROBLEMS  .
  6. PROBLEM SYMPTOMS TABLE 
    1. Proceed to PROBLEM SYMPTOMS TABLE  .
  7. CIRCUIT INSPECTION* 
  8. IDENTIFICATION OF PROBLEM 
  9. REPAIR OR REPLACEMENT 
  10. CONFIRMATION TEST* 

    NEXT: END 

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.