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Home >> Toyota >> 2020 >> RAV4 XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 91 (Motor Generator Control System (2WD, W/ Nickel Metal Hydride Battery) - Diagnostics - Introduction) >> MOTOR GENERATOR CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY) >> How To Proceed With Troubleshooting [11/2018 - 08/2020] >> Procedure

How To Proceed With Troubleshooting [11/2018 - 08/2020]: Procedure

WARNING: This page is about a different variant/trim than selected.
  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 THE DLC3* 

    HINT: 

    If the Techstream indicates a communication error, inspect the DLC3.

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK DTC AND FREEZE FRAME DATA* 

    Refer to DTC CHECK / CLEAR [11/2018 - 08/2020] 

    HINT: 

    Make sure to save freeze frame data because the data is necessary for performing simulation tests.

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  5

  5. CLEAR DTC AND FREEZE FRAME DATA* 

    Refer to DTC CHECK / CLEAR [11/2018 - 08/2020] 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  6

  6. CONDUCT VISUAL INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  7

  7. CONFIRM PROBLEM SYMPTOMS 

    HINT: 

    If the hybrid vehicle control system does not start, perform steps 9 and 11 first.

    Result

    Proceed to
    Malfunction does not occur.
    Malfunction occurs.

    Result: 

    Malfunction occurs. 

    See step  10

    Result: 

    Malfunction does not occur. 

    See step  8

  8. DUPLICATE CONDITIONS THAT PRODUCE SYMPTOMS 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  9

  9. CHECK FOR DTCS* 

    Refer to DTC CHECK / CLEAR [11/2018 - 08/2020] 

    Result

    Proceed to
    DTCs are output.
    DTCs are not output.

    Result: 

    DTCs are not output. 

    See step  16

    Result: 

    DTCs are output. 

    See step  10

  10. REFER TO DTC CHART. Refer To  DIAGNOSTIC TROUBLE CODE CHART [11/2018 - 08/2020]  

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  11

  11. CONDUCT CIRCUIT INSPECTION 

    Result

    Proceed to
    Malfunction not confirmed.
    Malfunction confirmed.

    Result: 

    Malfunction confirmed. 

    See step  13

    Result: 

    Malfunction not confirmed. 

    See step  12

  12. CHECK FOR INTERMITTENT PROBLEMS 

    Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2018 - 08/2020] 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  13

  13. IDENTIFY PROBLEM 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  14

  14. ADJUST AND/OR REPAIR 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  15

  15. CONDUCT CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END 

  16. CONDUCT BASIC INSPECTION 

    Result

    Proceed to
    Malfunctioning parts not confirmed.
    Malfunctioning parts confirmed.

    Result: 

    Malfunctioning parts confirmed. 

    See step  18

    Result: 

    Malfunctioning parts not confirmed. 

    See step  17

  17. CHECK ECU POWER SOURCE CIRCUIT 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  11

  18. CONDUCT PARTS INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  13

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