LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2018 >> 4Runner TRD Pro >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Occupant Classification System - Diagnostics - Introduction >> Occupant Classification System >> How To Proceed With Troubleshooting [08/2015 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

How To Proceed With Troubleshooting [08/2015 - ]: Procedure

  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. PASSENGER AIRBAG ON/OFF INDICATOR CHECK 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK DTC (Present and Past DTCs)* 
    1. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] , or refer to DTC CHECK / CLEAR [08/2019 - ] ).

      Result

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

    Result: 

    GO TO PROBLEM SYMPTOMS TABLE 

    (Refer to PROBLEM SYMPTOMS TABLE [08/2015 - ] )

    Result: 

    See step  5

  5. DTC CHART 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  6

  6. CIRCUIT INSPECTION* 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  7

  7. REPAIR 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  8

  8. CLEAR DTCS (Present and Past DTCs)* 
    1. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] , or refer to DTC CHECK / CLEAR [08/2019 - ] ).

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  9

  9. CHECK DTC (Present and Past DTCs)* 
    1. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] , or refer to DTC CHECK / CLEAR [08/2019 - ] ).

      Result

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

    Result: 

    See step  5

    Result: 

    See step  10

  10. SYMPTOM SIMULATION 
    1. Check the passenger airbag ON/OFF indicator condition.

      Result

      Result Proceed to
      Passenger airbag ON/OFF indicator is operating normally. A
      Passenger airbag ON/OFF indicator ("OFF") and SRS warning light come on. B

    Result: 

    See step  5

    Result: 

    See step  11

  11. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END