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HOMESERVICE MANUALSTOYOTA2020RAV4 XLE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 20 (ENGINE CONTROL SYSTEM (A25A-FXS) - DIAGNOSTICS - INTRODUCTION (1 OF 4))SFI SYSTEMHOW TO PROCEED WITH TROUBLESHOOTING [08/2020 - ]PROCEDURE
2020 Toyota RAV4 XLE, AWD

How To Proceed With Troubleshooting [08/2020 - ]: Procedure

2020 Toyota RAV4 XLE, AWDSECTION Procedure
WARNING: This page is about a different car, the 2025 Toyota RAV4, 2024 Toyota RAV4, 2023 Toyota RAV4, 2022 Toyota RAV4, and 2021 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. CUSTOMER PROBLEM ANALYSIS 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  3

  3. CONNECT TECHSTREAM TO DLC3* 

    HINT: 

    If the display indicates a communication malfunction, inspect the DLC3.

    When any CAN communication system DTCs are output, perform troubleshooting for the CAN communication system first.

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK DTC AND FREEZE FRAME DATA* 
    1. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

    2. Check for Freeze Frame Data.

      Refer to FREEZE FRAME DATA [08/2020 - 12/2021] , or refer to FREEZE FRAME DATA [12/2021 - 10/2022] , or refer to FREEZE FRAME DATA [10/2022 - 11/2024] , or refer to FREEZE FRAME DATA [11/2024 - ] 

      HINT: 

      Record or print DTCs and Freeze Frame Data if necessary.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  5

  5. CHECK VEHICLE CONTROL HISTORY AND VEHICLE CONTROL HISTORY FREEZE FRAME DATA* 
    1. Check for Vehicle Control History and Vehicle Control History Freeze Frame Data.

      Powertrain > Engine > Utility 

      Tester Display
      Vehicle Control History (RoB)

      HINT: 

      Print Vehicle Control History and Vehicle Control History Freeze Frame Data if necessary.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  6

  6. CLEAR DTC AND FREEZE FRAME DATA* 
    1. Clear the DTCs and Freeze Frame Data.

      Powertrain > Engine > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  7

  7. CONDUCT VISUAL INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  8

  8. SELECT CHECK MODE DIAGNOSIS* 
    1. Change the ECM from normal mode to check mode.

      Powertrain > Engine > Utility 

      Tester Display
      Check Mode

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  9

  9. CONFIRM PROBLEM SYMPTOMS 
    1. Confirm the problem symptoms.

      HINT: 

      If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.

      Result

      Result Proceed to
      Malfunction does not occur A
      Malfunction occurs B

    Result: 

    B 

    See step  11

    Result: 

    A 

    See step  10

  10. SIMULATE SYMPTOMS 

    HINT: 

    Refer to Symptom Simulation.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  11

  11. CHECK DTC* 
    1. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

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

    Result: 

    B 

    See step  13

    Result: 

    A 

    See step  12

  12. REFER TO DTC CHART 

    HINT: 

    Refer to Diagnostic Trouble Code Chart.

    Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2020 - 12/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - 10/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  13

  13. CONDUCT BASIC INSPECTION 
    1. Conduct basic inspection.

      Refer to BASIC INSPECTION [08/2020 - ] 

      Result

      Result Proceed to
      Malfunctioning parts not confirmed A
      Malfunctioning parts confirmed B

    Result: 

    B 

    See step  18

    Result: 

    A 

    See step  14

  14. REFER TO PROBLEM SYMPTOMS TABLE 

    HINT: 

    Refer to Problem Symptoms Table.

    Refer to PROBLEM SYMPTOMS TABLE [08/2020 - ] 

    Result

    Result Proceed to
    Malfunctioning circuit confirmed A
    Malfunctioning parts confirmed B

    Result: 

    B 

    See step  18

    Result: 

    A 

    See step  15

  15. CHECK ECM POWER SOURCE CIRCUIT 
    1. Check the ECM power source circuit.

      Refer to ECM Power Source Circuit [08/2020 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  16

  16. CONDUCT CIRCUIT INSPECTION 

    Result

    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    Result: 

    B 

    See step  19

    Result: 

    A 

    See step  17

  17. CHECK FOR INTERMITTENT PROBLEMS 
    1. Check for intermittent problems.

      Refer to CHECK FOR INTERMITTENT PROBLEMS [08/2020 - ] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  18

  18. CONDUCT PARTS INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  19

  19. IDENTIFY PROBLEM 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  20

  20. ADJUST AND/OR REPAIR 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  21

  21. CONDUCT CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    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.