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Home >> Lexus >> 2020 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio And Visual System (12.3 Inch Display) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (for 12.3 Inch Display) >> DTC B155A: Touch Pad Vibration Driver Malfunction [08/2019 - ] >> Procedure

DTC B155A: Touch Pad Vibration Driver Malfunction [08/2019 - ]: Procedure

  1. CHECK DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

    2. Recheck for DTCs and check that no DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      HINT: 

      If DTC B155B, B1559 is output, perform troubleshooting for DTC B155B, B1559 first.

      B155B: Refer to DTC B155B: Touch Pad Memory Module Malfunction [08/2019 - ] 

      B1559: Refer to DTC B1559: Touch Pad Sensor Malfunction [08/2019 - ] 

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

    Result: 

    NG 

    See step  2

  2. REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) SELF CHECK (CHECK REMOTE TOUCH SCREEN OPERATION POSITION RECOGNITION CONDITION) 
    1. Enter self-diagnostic mode.

      Refer to OPERATION CHECK [08/2019 - ]

    2. Operate the remote touch screen laterally and check that the remote touch screen generates vibration feedback.
      NOTE:

      Since the remote touch screen may recognize a pinch in/out or flick operation if operated with 2 fingers, always use 1 finger to operate the remote touch screen in self-diagnostic mode.

      HINT: 

      When operating at an excessively low temperature, vibration feedback may be difficult to feel.

      Result

      Result Proceed to
      Vibration feedback is generated according to remote touch screen operation A
      The switch illumination changes but vibration feedback is not generated in accordance with remote touch screen operation B

    Result: 

    REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY). Refer to  REMOVAL [08/2019 - ] 

    Result: 

    See step  3

  3. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK FEEDBACK VIBRATION 
    1. Turn the power switch on (ACC), swipe the MENU screen to move the cursor and pull it over the button with the vibration feedback.

      HINT: 

      Using the multi-display assembly customize setting screen, check that the remote touch screen vibration feedback reaction force setting is not set to "Off".

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  5

  5. CHECK DTC 
    1. Recheck for DTCs and check if the same DTC is output again.

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

    Result: 

    NG 

    REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY). Refer to  REMOVAL [08/2019 - ]