DTC B1552: Extension Module Malfunction; DTC B158A: Extension Module Noise Adjustment Malfunction; DTC B15BA: XM Tuner Malfunction [10/2014 - ]: Procedure

CHECK DTC
1. Clear the DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).
2. Recheck for DTCs and check that no DTCs are output.
  OK
  
  No DTCs are output.
Result:

OK

USE SIMULATION METHOD TO CHECK

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 10/2015] or HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] )

Result:

NG

REPLACE STEREO COMPONENT TUNER ASSEMBLY

(Refer to REMOVAL [10/2014 - ] )