DTC B155B: Touch Pad Memory Module Malfunction [09/2017 - ]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2018] , or refer to DTC CHECK / CLEAR [05/2018 - 10/2019] , or refer to DTC CHECK / CLEAR [10/2019 - ]

   Body Electrical > Navigation System > Clear DTCs 

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

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2018] , or refer to DTC CHECK / CLEAR [05/2018 - 10/2019] , or refer to DTC CHECK / CLEAR [10/2019 - ]

   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 [09/2017 - 05/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 10/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

Result: 

NG 

See step  2

1. Check that the part number of the remote operation controller assembly (remote touch) is correct.

   Result

   Result	Proceed to
   The part number of the remote operation controller assembly (remote touch) is correct	A
   The part number of the remote operation controller assembly (remote touch) is incorrect	B

Result: 

B 

REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH). Refer to  REMOVAL [09/2017 - 05/2019]  , or refer to  REMOVAL [05/2019 - ] 

Result: 

A 

See step  3

1. Enter self-diagnostic mode.

   Refer to OPERATION CHECK [09/2017 - 10/2019] , or refer to OPERATION CHECK [10/2019 - ]

2. Operate the remote touch screen laterally and check that the 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 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 touch panel operation	A
   The switch illumination changes but vibration feedback is not generated in accordance to touch screen operation	B

Result: 

B 

REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH). Refer to  REMOVAL [09/2017 - 05/2019]  , or refer to  REMOVAL [05/2019 - ] 

Result: 

A 

See step  4

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2018] , or refer to DTC CHECK / CLEAR [05/2018 - 10/2019] , or refer to DTC CHECK / CLEAR [10/2019 - ]

   Body Electrical > Navigation System > Clear DTCs 

2. Turn the engine switch off.
3. Turn the engine switch on (ACC) and wait for 5 seconds.
4. Recheck for DTCs and check that no DTCs are output.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2018] , or refer to DTC CHECK / CLEAR [05/2018 - 10/2019] , or refer to DTC CHECK / CLEAR [10/2019 - ]

   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 [09/2017 - 05/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 10/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

Result: 

NG 

REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH). Refer to  REMOVAL [09/2017 - 05/2019]  , or refer to  REMOVAL [05/2019 - ]