LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2021 >> UX 250h Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Continuously Variable Transaxle (CVT) System (K120) (Diagnostics - Introduction)) >> Continuously Variable Transaxle System >> How To Proceed With Troubleshooting [10/2018 - 07/2022] >> Procedure

How To Proceed With Troubleshooting [10/2018 - 07/2022]: Procedure

WARNING: This page is about a different car, the 2022 Lexus UX 200, 2021 Lexus UX 200, 2020 Lexus UX 200, and 2019 Lexus UX 200. 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 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  3

  3. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage.

      Standard Voltage

      11 to 14 V

      HINT: 

      If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK CAN COMMUNICATION SYSTEM* 
    1. Using the Techstream, check if the CAN communication system is functioning normally.

      CAN Bus Check 

      OK

      CAN communication system is functioning normally.

      HINT: 

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022] 

    Result: 

    OK 

    See step  5

  5. CHECK AND CLEAR DTCS AND FREEZE FRAME DATA* 
    1. Refer to DTC Check/Clear.

      Refer to DTC CHECK / CLEAR [10/2018 - 07/2022] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  6

  6. SELECT CHECK MODE DIAGNOSIS* 
    1. Refer to Check Mode Procedure.

      Refer to CHECK MODE PROCEDURE [10/2018 - 07/2022] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  7

  7. CHECK FOR DTC* 
    1. Proceed to DTC Check/Clear.

      Refer to DTC CHECK / CLEAR [10/2018 - 07/2022] 

      Powertrain > Transmission > Trouble Codes 

      Result

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

    Result: 

    See step  14

    Result: 

    See step  8

  8. BASIC INSPECTION 
    1. Refer to Continuously Variable Transaxle Fluid.

      Refer to ADJUSTMENT [10/2018 - 10/2019] Refer to ADJUSTMENT [10/2019 - 07/2022]

    2. Refer to Park/Neutral Position Switch.

      Refer to ON-VEHICLE INSPECTION [10/2018 - 07/2022]

    3. Refer to Shift Lever.

      Refer to ON-VEHICLE INSPECTION [10/2018 - 07/2022]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  9

  9. PROBLEM SYMPTOMS CONFIRMATION 
    1. Refer to Road Test.

      Refer to ROAD TEST [10/2018 - 07/2022] 

    2. Refer to Mechanical System Tests.

      Refer to MECHANICAL SYSTEM TESTS [10/2018 - 07/2022] 

    3. Refer to Hydraulic Test.

      Refer to HYDRAULIC TEST [10/2018 - 07/2022] 

      Result

      Result Proceed to
      Symptom does not occur A
      Symptom occurs B

    Result: 

    See step  11

    Result: 

    See step  10

  10. SYMPTOM SIMULATION 
    1. Refer to Symptom Simulation.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  11

  11. COMPONENT INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  12

  12. REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  13

  13. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END 

  14. DIAGNOSTIC TROUBLE CODE CHART 
    1. Proceed to Diagnostic Trouble Code Chart.

      Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2018 - 10/2019]  Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2019 - 07/2022] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  15

  15. CIRCUIT INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  16

  16. IDENTIFICATION OF PROBLEM 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  17

  17. REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  18

  18. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END