Audio Control Module (ACM)

AUDIO CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Action
B1155	Subwoofer #1 Short to Battery	See PINPOINT TEST 4: THE SUBWOOFER IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B1158	Subwoofer #2 Open	See PINPOINT TEST 4: THE SUBWOOFER IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B1318	Battery Voltage Low	CLEAR the DTCs. TEST the charging system. See CHARGING SYSTEM - CONVENTIONAL ENGINE . If the charging system is OK, the DTC was set by a previous low voltage condition. No concern is found at this time. If the charging system is not OK, see CHARGING SYSTEM - CONVENTIONAL ENGINE .
B1342	ECU is Faulted	CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new ACM. See AUDIO CONTROL MODULE (ACM) REMOVAL/INSTALLATION -- HYBRID . TEST the system for normal operation.
B2103	Antenna Not Connected	See PINPOINT TEST 1: POOR RECEPTION - AM/FM .
B2405	Audio Disc CD Player Thermal Shutdown Fault	The ACM was over temperature. Audio operation will resume after the ACM cools. This is normal operation. CLEAR the DTCs.
B2406	Audio Disc CD Player Internal Fault	NOTE: DTC B1342 will also be set. CLEAR the DTCs. REPEAT the self-test. If DTC B2406 or DTC B1342 is retrieved again, INSTALL a new ACM. See AUDIO CONTROL MODULE (ACM) REMOVAL/INSTALLATION -- HYBRID . TEST the system for normal operation.
B2477	Module Configuration Failure	See MODULE CONFIGURATION -- HYBRID .
B2913	Audio Subwoofer Not Connected	See PINPOINT TEST 4: THE SUBWOOFER IS INOPERATIVE/DOES NOT OPERATE CORRECTLY .
B2965	Audio System Speaker Circuit Fault	See PINPOINT TEST 2: POOR QUALITY/DISTORTED/NO SOUND FROM ONE OR MORE SPEAKERS (NOT ALL SPEAKERS) .
U0140	Lost Communication With Body Control Module (GEM)	NOTE: If no related concern is currently present, disregard the DTC. NOTE: Diagnose DTC B1318 (if present) before diagnosing this DTC. VERIFY the operation of the illumination system and the accessory delay. If the illumination system or the accessory delay does not operate correctly, see SYMPTOM TROUBLESHOOTING CHART -- ILLUMINATION -- HYBRID (illumination) or SYMPTOM TROUBLESHOOTING CHART -- EXTERIOR WINDOWS (accessory delay). If the illumination system and the accessory delay operate correctly, INSTALL a new ACM. See AUDIO CONTROL MODULE (ACM) REMOVAL/INSTALLATION -- HYBRID . TEST the system for normal operation.
U0155	Lost Communication With Instrument Panel Cluster (IC) Control Module	NOTE: If no related concern is currently present, disregard the DTC. If the speed sensitive volume does not operate correctly, see PINPOINT TEST 6: THE SPEED SENSITIVE VOLUME DOES NOT OPERATE CORRECTLY .
U0255	Lost Communication With Front Controls Interface Module	NOTE: If no related concern is currently present, disregard the DTC. See PINPOINT TEST 13: THE ENTIRE AUDIO SYSTEM IS INOPERATIVE .
U0256	Lost Communication With Front Display Interface Module	NOTE: If no related concern is currently present, disregard the DTC. See SYMPTOM TROUBLESHOOTING CHART - AUDIO SYSTEM .
U2050	No Application Present	See MODULE CONFIGURATION -- HYBRID .
U2051	One or More Calibration Files Missing/Corrupt	See MODULE CONFIGURATION -- HYBRID .