Audio Unit DTC Chart

DTC	Description	Action
B1342 CD	ECU is Faulted	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B1342 CD is retrieved again, INSTALL a new audio unit. REFER to AUDIO UNIT . TEST the system for normal operation.
B1342 ECU	ECU is Faulted	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B1342 ECU is retrieved again, INSTALL a new audio unit. REFER to AUDIO UNIT . TEST the system for normal operation.
B1342 SAT	ECU is Faulted	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B1342 SAT is retrieved again, INSTALL a new Satellite Digital Audio Receiver System (SDARS) module. REFER to SATELLITE DIGITAL AUDIO RECEIVER SYSTEM (SDARS) MODULE . TEST the system for normal operation.
B2103 TUNER	Antenna Not Connected	GO to PINPOINT TEST B .
B2209 ECU	ECU ROM Checksum Error	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B2209 ECU is retrieved again, INSTALL a new audio unit. REFER to AUDIO UNIT . TEST the system for normal operation.
B2404 SWC	Audio Steering Wheel Switch Circuit Fault	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B2404 SWC is retrieved again, INSTALL a new audio unit. REFER to AUDIO UNIT . TEST the system for normal operation.
B2405 CD	Audio Disc CD Player Thermal Shutdown Fault	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B2405 CD is retrieved again, INSTALL a new audio unit. REFER to AUDIO UNIT . TEST the system for normal operation.
B2406 CD	Audio Disc CD Player Internal Fault	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B2406 CD is retrieved again, INSTALL a new audio unit. REFER to AUDIO UNIT . TEST the system for normal operation.
B2857 CD	Audio Internal Multi-Disc Fault	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B2857 CD is retrieved again, INSTALL a new audio unit. REFER to AUDIO UNIT . TEST the system for normal operation.
B2858 CD	Audio Multiple-Disc CD Player Thermal Fault	DOCUMENT and CLEAR the DTCs. CARRY OUT the self-test. If DTC B2858 CD is retrieved again, INSTALL a new audio unit. REFER to AUDIO UNIT . TEST the system for normal operation.
U2025	SDARS Module is Not Responding	REFER to MODULE COMMUNICATIONS NETWORK , The Satellite Digital Audio Receiver System (SDARS) Module Does Not Respond To The Scan Tool.