2011 Toyota Avalon BaseFACTORY OEM SERVICE PROCEDURE

How To Proceed With Troubleshooting

Techstream can be used at steps 3, 4, 6, 7, 11, 14, and 17.

  1. VEHICLE BROUGHT TO WORKSHOP 

    NEXT: Go to next step 

  2. CUSTOMER PROBLEM ANALYSIS 

    NEXT: Go to next step 

  3. CHECK DTC AND FREEZE FRAME DATA 

    NEXT: Go to next step 

  4. CLEAR DTC AND FREEZE FRAME DATA 

    NEXT: Go to next step 

  5. PROBLEM SYMPTOM CONFIRMATION 

    NEXT: Go to next step 

  6. CHECK CAN COMMUNICATION SYSTEM 
    1. Check for output DTCs.

      HINT: 

      The ECU of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

      → CAN COMMUNICATION SYSTEM DTC IS OUTPUT: PROCEED TO  CAN COMMUNICATION SYSTEM  CAN COMMUNICATION SYSTEM 

      → NO CAN COMMUNICATION SYSTEM DTC IS OUTPUT: GO TO STEP   7 

  7. CHECK MULTIPLEX COMMUNICATION SYSTEM 
    1. Check for output DTCs.

      HINT: 

      The skid control ECU sends the signals of each warning light to the gateway ECU via CAN communication, and the gateway ECU sends the signals to the combination meter via multiplex communication system (BEAN).

      → MULTIPLEX COMMUNICATION SYSTEM DTC IS OUTPUT: PROCEED TO  MULTIPLEX COMMUNICATION SYSTEM  MULTIPLEX COMMUNICATION SYSTEM 

      → NO MULTIPLEX COMMUNICATION SYSTEM DTC IS OUTPUT: GO TO STEP 8  8 

  8. DTC CHECK AND CLEAR 

    NEXT: Go to next step 

  9. PROBLEM SYMPTOM SIMULATION 

    → SYMPTOM DOES NOT OCCUR: GO TO STEP   10 

    → SYMPTOM OCCURS: GO TO STEP   11 

  10. SYMPTOM SIMULATION 

    NEXT: Go to next step 

  11. DTC CHECK (OTHER THAN CAN AND MULTIPLEX COMMUNICATION SYSTEM DTC) 

    → NORMAL SYSTEM CODE: GO TO STEP   12 

    → TROUBLE CODE: GO TO STEP   13 

  12. PROBLEM SYMPTOMS TABLE 

    NEXT → GO TO STEP   14 

  13. DTC CHART 

    NEXT: Go to next step 

  14. CIRCUIT INSPECTION 

    NEXT: Go to next step 

  15. IDENTIFICATION OF PROBLEM 

    NEXT: Go to next step 

  16. REPAIR OR REPLACE 

    NEXT: Go to next step 

  17. CONFIRMATION TEST 

    NEXT → END 

Factory Service Tools

Use the Manual With the Right Hardware

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

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.