DTC B1551: HD Radio Tuner Malfunction; DTC B15A0: LAN Master Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction; DTC B15BA: XM Tuner Malfunction; DTC B15F9: UART Communication Malfunction (for A/C) [12/2017 - 08/2019]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [12/2017 - 08/2019]

   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.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 03/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2018 - 08/2019] 

Result: 

NG 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2017 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019]