DTC Charts

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

AUDIO CONTROL MODULE (ACM) DTC CHART

DTC	Description	Action
B1117	Audio Steering Wheel Button Stuck	DTC is not applicable. The vehicle is not equipped with steering wheel controls. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
B1119	Audio Disc DVD Player Thermal Shutdown	The audio control module (ACM) was over temperature. Audio operation will resume after the ACM cools. This is normal operation. CLEAR the DTCs.
B1136	Audio Steering Wheel Switch #2 Circuit Failure	DTC is not applicable. The vehicle is not equipped with steering wheel controls. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
B1140	Map Disk Invalid	REMOVE the map DVD and CLEAN it. INSPECT for scratches, fingerprints, or damage, and REPAIR as necessary. VERIFY a valid map DVD is being used. If no concern is found, INSERT a known good map DVD. REPEAT the self-test. If the system operates correctly, the concern was caused by a damaged or invalid map DVD. If DTC B1140 is retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) . TEST the system for normal operation.
B1318	Battery Voltage Low	CLEAR the DTCs. TEST the charging system. REFER to CHARGING SYSTEM - GENERAL INFORMATION . 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, REFER to CHARGING SYSTEM - GENERAL INFORMATION to diagnose the low battery voltage condition.
B1342	ECU is Faulted	CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) . TEST the system for normal operation.
B2103	Antenna Not Connected	Go to Pinpoint Test A .
B2204	GPS Antenna Connection Open or Short	Go to Pinpoint Test H .
B2274	Phone Transceiver Active Circuit Failure	DTC is not applicable. The vehicle is not equipped with cellular phone functionality. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
B2384	Audio Reverse Aid Mute Input CKT Failure	DTC is not applicable. The vehicle is not equipped with parking aid. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
B2404	Audio Steering Wheel Switch Circuit Failure	DTC is not applicable. The vehicle is not equipped with steering wheel controls. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
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 B1342 is retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) . TEST the system for normal operation.
B2477	Module Configuration Failure	REFER to MODULE CONFIGURATION .
B2633	Driver-Front Microphone Circuit Failure	DTC is not applicable. The vehicle is not equipped with voice-activated navigation. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
B2656	DVD (Digital Versatile Disk) Error	NOTE: DTC B1342 will also be set. CLEAR the DTCs. REPEAT the self-test. If DTC B2656 or B1342 is retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) . TEST the system for normal operation.
B2924	Audio Button Stuck	For the navigation ACM, go to Pinpoint Test K . For all others, VERIFY no ACM buttons are stuck and that no ACM button was pressed during the self-test. CLEAR the DTCs. REPEAT the self-test. If DTC B2924 is retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) . TEST the system for normal operation.
B2965	Audio System Speaker Circuit Fault	Go to Pinpoint Test B .
C1992	Vehicle Speed Circuit Failure	DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
P0812	Reverse Input Circuit	DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
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 vehicle illumination and the accessory delay. If the vehicle illumination or accessory delay does not operate correctly, REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION (illumination) or GLASS, FRAMES AND MECHANISMS (accessory delay). If the vehicle illumination and accessory delay operate correctly, CLEAR the DTC. REPEAT the self-test. If DTC U0140 sets again, INSTALL a new ACM. REFER to Audio Control Module (ACM) . 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, go to Pinpoint Test M .If the navigation is inaccurate, go to Pinpoint Test L .
U0159	Lost Communication With Parking Assist Control Module (PAM)	DTC is not applicable. The vehicle is not equipped with parking aid. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
U0193	Lost Communication With Digital Audio Control Module (SDARS)	NOTE: If no related concern is currently present, disregard the DTC. Go to Pinpoint Test F .
U0196	Lost Communication With Entertainment Control Module - Rear (AUX)	DTC is not applicable. The vehicle is not equipped with rear audio controls. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
U0197	Lost Communication With Telephone Control Module	DTC is not applicable. The vehicle is not equipped with cellular phone functionality. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
U0238	Lost Communication With Digital Audio Control Module "D" (DSP)	DTC is not applicable. The vehicle is not equipped with a DSP module. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
U0249	Lost Communication With Entertainment Control Module - Rear "B" (RCU)	DTC is not applicable. The vehicle is not equipped with rear audio controls. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
U2050	No Application Present	CONFIGURE the ACM. REFER to MODULE CONFIGURATION to carry out programmable module installation (PMI). CLEAR the DTCs. REPEAT the self-test. If DTC U2050 is retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) . TEST the system for normal operation.
U2051	One or More Calibration Files Missing/Corrupt	CONFIGURE the ACM. REFER to MODULE CONFIGURATION to carry out PMI. CLEAR the DTCs. REPEAT the self-test. If DTC U2051 is retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) . TEST the system for normal operation.
U2473	Unexpected Vehicle Speed (VSS)	Go to Pinpoint Test L .

NOTE: While running the satellite audio bezel diagnostic test, DTCs contain the characters "SAT" after the 5-digit DTC.

SATELLITE DIGITAL AUDIO RECEIVER SYSTEM (SDARS) MODULE DTC CHART

DTC	Description	Action
B1031	SDARS Satellite Antenna Open	Go to Pinpoint Test G .
B1032	SDARS Satellite Antenna Short	Go to Pinpoint Test G .
B1318	Battery Voltage Low	CLEAR the DTCs. TEST the charging system. REFER to CHARGING SYSTEM - GENERAL INFORMATION . 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, REFER to CHARGING SYSTEM - GENERAL INFORMATION to diagnose the low battery voltage condition.
B1342	ECU is Faulted	CLEAR the DTCs. REPEAT the self-test. If DTC B1342 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 after the repair.
B2477	Module Configuration Failure	REFER to MODULE CONFIGURATION .
U0184	Lost Communication With Radio (ACM)	NOTE: If no related concern is currently present, disregard the DTC. Go to Pinpoint Test F .
U0196	Lost Communication With Entertainment Control Module - Rear (AUX)	DTC is not applicable. The vehicle is not equipped with rear audio controls. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
U0197	Lost Communication With Telephone Control Module	DTC is not applicable. The vehicle is not equipped with cellular phone functionality. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
U0249	Lost Communication With Entertainment Control Module - Rear "B" (RCU)	DTC is not applicable. The vehicle is not equipped with rear audio controls. DISREGARD the DTC. CLEAR the DTCs. REPEAT the self-test.
U2050	No Application Present	CONFIGURE the SDARS module. REFER to MODULE CONFIGURATION to carry out PMI. CLEAR the DTCs. REPEAT the self-test. If DTC U2050 is retrieved again, INSTALL a new SDARS module. REFER to Satellite Digital Audio Receiver System (SDARS) Module . TEST the system for normal operation.