Audio Front Control Module (ACM)

ACM DTC CHART

DTC	Description	Action
B1A56:21	Antenna: Signal Amplitude < Minimum	If DTC B1A56:21 sets after running the bezel diagnostic tests, DISREGARD this DTC . This test is used for end of line or repair bay testing at the Ford plant. Each plant has its own assigned frequency and signal strength requirements. The running and passing of this test depends on local radio stations. If no local station is broadcasting on the required frequency, the test will fail.
B1A89:11	Satellite Antenna: Circuit Short To Ground	For a satellite radio concern, GO to PINPOINT TEST C For a SIRIUS Data Services concern, GO to PINPOINT TEST D
B1A89:13	Satellite Antenna: Circuit Open	For a satellite radio concern, GO to PINPOINT TEST C For a SIRIUS Data Services concern, GO to PINPOINT TEST D
U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	GO to PINPOINT TEST AR
U0237:00	Lost Communication With Digital Audio Control Module "C": No Sub Type Information	GO to PINPOINT TEST AU
U0238:00	Lost Communication With Digital Audio Control Module "D": No Sub Type Information	GO to PINPOINT TEST AV
U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	GO to PINPOINT TEST AW
U0256:00	Lost Communication With Front Controls Interface Module "A": No Sub Type Information	GO to PINPOINT TEST AX
U0257:00	Lost Communication With Front Controls/Display Interface Module: No Sub Type Information	NOTE: Despite the description, this DTC applies to the FDIM , not the FCDIM . GO to PINPOINT TEST AY
U201A:51	Control Module Main Calibration Data: Not Programmed	This DTC sets due to incomplete or incorrect PMI procedures. CHECK the vehicle service history for recent service actions related to the ACM . If there have been recent service actions with the ACM , REPEAT/PERFORM the PMI procedure as directed by the diagnostic scan tool. REFER to: MODULE CONFIGURATION - SYSTEM OPERATION AND COMPONENT DESCRIPTION . See PMI. If there have been no recent service actions, INSTALL a new ACM to correct the failure to retain configuration data. REFER to: AUDIO FRONT CONTROL MODULE (ACM) .
U2100:00	Initial Configuration Not Complete: No Sub Type Information	This DTC sets due to incomplete or incorrect PMI procedures. CHECK the vehicle service history for recent service actions related to the ACM . If there have been recent service actions with the ACM , REPEAT/PERFORM the PMI procedure as directed by the diagnostic scan tool. REFER to: MODULE CONFIGURATION - SYSTEM OPERATION AND COMPONENT DESCRIPTION . See PMI. If there have been no recent service actions, INSTALL a new ACM to correct the failure to retain configuration data. REFER to: AUDIO FRONT CONTROL MODULE (ACM) .
U2101:00	Control Module Configuration Incompatible: No Sub Type Information	This DTC sets due to incomplete or incorrect PMI procedures. CHECK the vehicle service history for recent service actions related to the ACM . If there have been recent service actions with the ACM , REPEAT/PERFORM the PMI procedure as directed by the diagnostic scan tool. REFER to: MODULE CONFIGURATION - SYSTEM OPERATION AND COMPONENT DESCRIPTION . See PMI. If there have been no recent service actions, INSTALL a new ACM to correct the failure to retain configuration data. REFER to: AUDIO FRONT CONTROL MODULE (ACM) .
U3000:41	Control Module: General Checksum Failure	CLEAR the DTC . WAIT at least 10 seconds. REPEAT the self-test. If DTC U3000:41 is retrieved again, INSTALL a new ACM . REFER to: AUDIO FRONT CONTROL MODULE (ACM) .
U3000:42	Control Module: General Memory Failure	CLEAR the DTC . WAIT at least 10 seconds. REPEAT the self-test. If DTC U3000:42 is retrieved again, INSTALL a new ACM . REFER to: AUDIO FRONT CONTROL MODULE (ACM) .
U3000:96	Control Module: Component Internal Failure	CLEAR the DTC . WAIT at least 10 seconds. REPEAT the self-test. If DTC U3000:96 is retrieved again, INSTALL a new ACM . REFER to: AUDIO FRONT CONTROL MODULE (ACM) .
U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to PINPOINT TEST BA
U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to PINPOINT TEST BB