Accessory Protocol Interface Module (APIM)

DTC INDEX

DTC	Description	Action
B1252:04	USB Port: System Internal Failure	GO to PINPOINT TEST R .
B1252:11	USB Port: Circuit Short to Ground	GO to PINPOINT TEST R .
B12B8:04	USB Port #2: System Internal Failure	NOTE: This DTC refers to USB port #2 on the APIM itself, which is not used. INSPECT the APIM USB port #2 for damage and REMOVE any debris. CLEAR the DTCs. WAIT at least 10 seconds. REPEAT the self-test. If DTC B12B8:04 is retrieved again, refer to APIM HARDWARE TESTING .
B12B8:11	USB Port #2: Circuit Short To Ground	NOTE: This DTC refers to USB port #2 on the APIM itself, which is not used. INSPECT the APIM USB port #2 for damage and REMOVE any debris. CLEAR the DTCs. WAIT at least 10 seconds. REPEAT the self-test. If DTC B12B8:11 is retrieved again, refer to APIM HARDWARE TESTING .
B1D79:01	Microphone Input: General Electrical Failure	GO to PINPOINT TEST P .
B1D79:11	Microphone Input: Circuit Short To Ground	GO to PINPOINT TEST P .
B1D79:12	Microphone Input: Circuit Short To Battery	GO to PINPOINT TEST P .
B1D79:13	Microphone Input: Circuit Open	GO to PINPOINT TEST P .
U0140:00	Lost Communication With Body Control Module: No Sub Type Information	GO to PINPOINT TEST AC .
U0155:00	Lost Communication With Instrument Panel Cluster (IPC ) Control Module: No Sub Type Information	GO to PINPOINT TEST AE .
U0423:00	Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information	RETRIEVE and FOLLOW DTCs present in the IPC . REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
U2100:00	Initial Configuration Not Complete: No Sub Type Information	This DTC sets due to incomplete or incorrect APIM programming/provisioning. CHECK vehicle service history for recent service actions related to the APIM . If there have been recent service actions with the APIM , REPEAT/PERFORM the APIM programming as directed by the scan tool. REFER to APIM PROGRAMMING in the Description and Operation portion. If there have been no recent service actions, the APIM has failed to retain configuration data. PERFORM the APIM Hardware Test. refer to APIM HARDWARE TESTING .
U2101:00	Control Module Configuration Incompatible: No Sub Type Information	This DTC sets due to incomplete or incorrect APIM programming/provisioning. CHECK vehicle service history for recent service actions related to the APIM . If there have been recent service actions with the APIM , REPEAT/PERFORM the APIM programming as directed by the scan tool. REFER to APIM PROGRAMMING in the Description and Operation. If there have been no recent service actions, the APIM has failed to retain configuration data. PERFORM the APIM Hardware Test. refer to APIM HARDWARE TESTING .
U3000:04	Control Module: System Internal Failure	GO to PINPOINT TEST M .
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, refer to APIM HARDWARE TESTING .
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, refer to APIM HARDWARE TESTING .
U3000:88	Control Module: Bus Off	NOTE: Network communication/message DTCs can result from intermittent concerns such as damaged wiring or low battery voltage occurrences. Additionally, vehicle repair procedures such as module reprogramming often set these DTCs. Replacing a module to resolve a network DTC is unlikely to resolve the concern. The module was unable to communicate on the network at a point in time. The fault is not currently present. To avoid repeat network concerns: INSPECT for damaged or corroded wiring at the APIM . TEST the vehicle battery. REFER to Charging Systems in CHARGING SYSTEM . CLEAR the DTC. REPEAT the network test with the diagnostic scan tool.
U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to PINPOINT TEST AN .
U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to PINPOINT TEST AO .