AN3 CHECK FOR BATTERY VOLTAGE OUT-OF-RANGE DIAGNOSTIC TROUBLE CODES (DTCS)

Yes	GO to AN3
No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Using a diagnostic scan tool, perform the self-test for the following modules:

ACM APIM FCIM

Are any low or high voltage Diagnostic Trouble Codes (DTCs) recorded in the ACM, APIM, or FCIM?

Yes	• For DTC U3003:16, GO to Pinpoint Test AQ • For DTC U3003:17, GO to Pinpoint Test AR
No	GO to AN4

Yes

• For DTC U3003:16, GO to Pinpoint Test AQ

• For DTC U3003:17, GO to Pinpoint Test AR

GO to AN4

AN4 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00 SET IN MULTIPLE MODULES

Review the recorded results from the self-test.

Is DTC U0253:00 set in the both the ACM and FCIM?

Yes	GO to AN5
No	• If there is an observable symptom, REFER to: Information and Entertainment System (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Diagnosis and Testing). See Symptom Chart: General Audio System. • If there is no observable symptom, the system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Yes

GO to AN5

• If there is an observable symptom, REFER to: Information and Entertainment System (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Diagnosis and Testing). See Symptom Chart: General Audio System.

• If there is no observable symptom, the system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AN5 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF. Disconnect and inspect the APIM connector. Repair:

Corrosion (clean module pins or install new connectors or terminals) Damaged or bent pins (install new terminals or pins) Pushed-out pins (install new pins as necessary)

Reconnect the APIM connector. Make sure it seats and latches correctly. Wait 2 minutes for the APIM to re-initialize. Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, PERFORM the APIM Hardware Test. Click here to access Guided Routine (APIM).
No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, PERFORM the APIM Hardware Test.

Click here to access Guided Routine (APIM).

The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Source reference 4236

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.